diff --git a/pkg/sql/parser/parse_test.go b/pkg/sql/parser/parse_test.go
index b0817b7bafb7..7116ed700576 100644
--- a/pkg/sql/parser/parse_test.go
+++ b/pkg/sql/parser/parse_test.go
@@ -56,11 +56,31 @@ func TestParseDatadriven(t *testing.T) {
 				var buf bytes.Buffer
 				fmt.Fprintf(&buf, "%s%s\n", ref, note)
 				fmt.Fprintln(&buf, stmts.StringWithFlags(tree.FmtAlwaysGroupExprs), "-- fully parenthetized")
-				fmt.Fprintln(&buf, stmts.StringWithFlags(tree.FmtHideConstants), "-- literals removed")
+				constantsHidden := stmts.StringWithFlags(tree.FmtHideConstants)
+				fmt.Fprintln(&buf, constantsHidden, "-- literals removed")
+
+				// As of this writing, the SQL statement stats proceed as follows:
+				// first the literals are removed from statement to form a stat key,
+				// then the stat key is re-parsed, to undergo the anonymization stage.
+				// We also want to check the re-parsing is fine.
+				//
+				// TODO(knz,rafiss): Turn the following two cases into proper test
+				// errors once the bugs are fixed.
+				reparsedStmts, err := parser.Parse(constantsHidden)
+				if err != nil {
+					fmt.Fprintln(&buf, "REPARSE WITHOUT LITERALS FAILS:", err)
+				} else {
+					reparsedStmtsS := reparsedStmts.String()
+					if reparsedStmtsS != constantsHidden {
+						fmt.Fprintln(&buf, reparsedStmtsS, "-- UNEXPECTED REPARSED AST WITHOUT LITERALS")
+					}
+				}
+
 				fmt.Fprintln(&buf, stmts.StringWithFlags(tree.FmtAnonymize), "-- identifiers removed")
 				if strings.Contains(ref, tree.PasswordSubstitution) {
 					fmt.Fprintln(&buf, stmts.StringWithFlags(tree.FmtShowPasswords), "-- passwords exposed")
 				}
+
 				return buf.String()
 			}
 			d.Fatalf(t, "unsupported command: %s", d.Cmd)
diff --git a/pkg/sql/parser/testdata/parse/alter_sequence b/pkg/sql/parser/testdata/parse/alter_sequence
index 603da036482e..20130f87a623 100644
--- a/pkg/sql/parser/testdata/parse/alter_sequence
+++ b/pkg/sql/parser/testdata/parse/alter_sequence
@@ -45,6 +45,7 @@ ALTER SEQUENCE a INCREMENT BY 5 START WITH 1000
 ALTER SEQUENCE a INCREMENT BY 5 START WITH 1000
 ALTER SEQUENCE a INCREMENT BY 5 START WITH 1000 -- fully parenthetized
 ALTER SEQUENCE a INCREMENT BY _ START WITH _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 ALTER SEQUENCE _ INCREMENT BY 5 START WITH 1000 -- identifiers removed
 
 parse
@@ -53,6 +54,7 @@ EXPLAIN ALTER SEQUENCE a INCREMENT BY 5 START WITH 1000
 EXPLAIN ALTER SEQUENCE a INCREMENT BY 5 START WITH 1000
 EXPLAIN ALTER SEQUENCE a INCREMENT BY 5 START WITH 1000 -- fully parenthetized
 EXPLAIN ALTER SEQUENCE a INCREMENT BY _ START WITH _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 EXPLAIN ALTER SEQUENCE _ INCREMENT BY 5 START WITH 1000 -- identifiers removed
 
 parse
@@ -61,6 +63,7 @@ ALTER SEQUENCE IF EXISTS a INCREMENT BY 5 START WITH 1000
 ALTER SEQUENCE IF EXISTS a INCREMENT BY 5 START WITH 1000
 ALTER SEQUENCE IF EXISTS a INCREMENT BY 5 START WITH 1000 -- fully parenthetized
 ALTER SEQUENCE IF EXISTS a INCREMENT BY _ START WITH _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 ALTER SEQUENCE IF EXISTS _ INCREMENT BY 5 START WITH 1000 -- identifiers removed
 
 parse
@@ -69,6 +72,7 @@ ALTER SEQUENCE IF EXISTS a NO CYCLE CACHE 1
 ALTER SEQUENCE IF EXISTS a NO CYCLE CACHE 1
 ALTER SEQUENCE IF EXISTS a NO CYCLE CACHE 1 -- fully parenthetized
 ALTER SEQUENCE IF EXISTS a NO CYCLE CACHE _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 ALTER SEQUENCE IF EXISTS _ NO CYCLE CACHE 1 -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/alter_table b/pkg/sql/parser/testdata/parse/alter_table
index 5b77ba25c1b7..b536277a4aff 100644
--- a/pkg/sql/parser/testdata/parse/alter_table
+++ b/pkg/sql/parser/testdata/parse/alter_table
@@ -614,6 +614,7 @@ ALTER TABLE a SPLIT AT VALUES (1) WITH EXPIRATION TIMESTAMP '2200-01-01 00:00:00
 ALTER TABLE a SPLIT AT VALUES (1) WITH EXPIRATION TIMESTAMP '2200-01-01 00:00:00.0'
 ALTER TABLE a SPLIT AT VALUES ((1)) WITH EXPIRATION (TIMESTAMP ('2200-01-01 00:00:00.0')) -- fully parenthetized
 ALTER TABLE a SPLIT AT VALUES (_) WITH EXPIRATION TIMESTAMP _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 ALTER TABLE _ SPLIT AT VALUES (1) WITH EXPIRATION TIMESTAMP '2200-01-01 00:00:00.0' -- identifiers removed
 
 parse
@@ -630,6 +631,7 @@ ALTER TABLE a SPLIT AT VALUES (1) WITH EXPIRATION TIMESTAMPTZ '2200-01-01 00:00:
 ALTER TABLE a SPLIT AT VALUES (1) WITH EXPIRATION TIMESTAMPTZ '2200-01-01 00:00:00.0'
 ALTER TABLE a SPLIT AT VALUES ((1)) WITH EXPIRATION (TIMESTAMPTZ ('2200-01-01 00:00:00.0')) -- fully parenthetized
 ALTER TABLE a SPLIT AT VALUES (_) WITH EXPIRATION TIMESTAMPTZ _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 ALTER TABLE _ SPLIT AT VALUES (1) WITH EXPIRATION TIMESTAMPTZ '2200-01-01 00:00:00.0' -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/alter_user b/pkg/sql/parser/testdata/parse/alter_user
index 266137873ef5..64ed095ea0cd 100644
--- a/pkg/sql/parser/testdata/parse/alter_user
+++ b/pkg/sql/parser/testdata/parse/alter_user
@@ -4,6 +4,7 @@ ALTER USER foo PASSWORD bar
 ALTER USER 'foo' WITH PASSWORD '*****' -- normalized!
 ALTER USER ('foo') WITH PASSWORD '*****' -- fully parenthetized
 ALTER USER _ WITH PASSWORD '*****' -- literals removed
+ALTER USER '_' WITH PASSWORD '*****' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER USER 'foo' WITH PASSWORD '*****' -- identifiers removed
 ALTER USER 'foo' WITH PASSWORD 'bar' -- passwords exposed
 
@@ -13,6 +14,7 @@ ALTER USER foo WITH PASSWORD bar
 ALTER USER 'foo' WITH PASSWORD '*****' -- normalized!
 ALTER USER ('foo') WITH PASSWORD '*****' -- fully parenthetized
 ALTER USER _ WITH PASSWORD '*****' -- literals removed
+ALTER USER '_' WITH PASSWORD '*****' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER USER 'foo' WITH PASSWORD '*****' -- identifiers removed
 ALTER USER 'foo' WITH PASSWORD 'bar' -- passwords exposed
 
@@ -22,6 +24,7 @@ ALTER USER foo WITH PASSWORD NULL
 ALTER USER 'foo' WITH PASSWORD NULL -- normalized!
 ALTER USER ('foo') WITH PASSWORD (NULL) -- fully parenthetized
 ALTER USER _ WITH PASSWORD _ -- literals removed
+ALTER USER '_' WITH PASSWORD '*****' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER USER 'foo' WITH PASSWORD NULL -- identifiers removed
 
 parse
@@ -30,6 +33,7 @@ ALTER ROLE foo WITH CREATEDB
 ALTER ROLE 'foo' WITH CREATEDB -- normalized!
 ALTER ROLE ('foo') WITH CREATEDB -- fully parenthetized
 ALTER ROLE _ WITH CREATEDB -- literals removed
+ALTER ROLE '_' WITH CREATEDB -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER ROLE 'foo' WITH CREATEDB -- identifiers removed
 
 parse
@@ -38,6 +42,7 @@ ALTER ROLE foo CREATEDB
 ALTER ROLE 'foo' WITH CREATEDB -- normalized!
 ALTER ROLE ('foo') WITH CREATEDB -- fully parenthetized
 ALTER ROLE _ WITH CREATEDB -- literals removed
+ALTER ROLE '_' WITH CREATEDB -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER ROLE 'foo' WITH CREATEDB -- identifiers removed
 
 parse
@@ -46,6 +51,7 @@ ALTER ROLE foo WITH CREATEROLE
 ALTER ROLE 'foo' WITH CREATEROLE -- normalized!
 ALTER ROLE ('foo') WITH CREATEROLE -- fully parenthetized
 ALTER ROLE _ WITH CREATEROLE -- literals removed
+ALTER ROLE '_' WITH CREATEROLE -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER ROLE 'foo' WITH CREATEROLE -- identifiers removed
 
 parse
@@ -54,6 +60,7 @@ ALTER ROLE foo CREATEROLE
 ALTER ROLE 'foo' WITH CREATEROLE -- normalized!
 ALTER ROLE ('foo') WITH CREATEROLE -- fully parenthetized
 ALTER ROLE _ WITH CREATEROLE -- literals removed
+ALTER ROLE '_' WITH CREATEROLE -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER ROLE 'foo' WITH CREATEROLE -- identifiers removed
 
 parse
@@ -62,6 +69,7 @@ ALTER ROLE foo CREATELOGIN
 ALTER ROLE 'foo' WITH CREATELOGIN -- normalized!
 ALTER ROLE ('foo') WITH CREATELOGIN -- fully parenthetized
 ALTER ROLE _ WITH CREATELOGIN -- literals removed
+ALTER ROLE '_' WITH CREATELOGIN -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER ROLE 'foo' WITH CREATELOGIN -- identifiers removed
 
 parse
@@ -70,4 +78,5 @@ ALTER ROLE foo NOCREATELOGIN
 ALTER ROLE 'foo' WITH NOCREATELOGIN -- normalized!
 ALTER ROLE ('foo') WITH NOCREATELOGIN -- fully parenthetized
 ALTER ROLE _ WITH NOCREATELOGIN -- literals removed
+ALTER ROLE '_' WITH NOCREATELOGIN -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 ALTER ROLE 'foo' WITH NOCREATELOGIN -- identifiers removed
diff --git a/pkg/sql/parser/testdata/parse/backup_restore b/pkg/sql/parser/testdata/parse/backup_restore
index 1443284c507a..ee3d5e4393b2 100644
--- a/pkg/sql/parser/testdata/parse/backup_restore
+++ b/pkg/sql/parser/testdata/parse/backup_restore
@@ -4,6 +4,7 @@ BACKUP TABLE foo TO 'bar'
 BACKUP TABLE foo TO 'bar'
 BACKUP TABLE (foo) TO ('bar') -- fully parenthetized
 BACKUP TABLE foo TO _ -- literals removed
+BACKUP TABLE foo TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' -- identifiers removed
 
 parse
@@ -12,6 +13,7 @@ BACKUP foo TO 'bar'
 BACKUP TABLE foo TO 'bar' -- normalized!
 BACKUP TABLE (foo) TO ('bar') -- fully parenthetized
 BACKUP TABLE foo TO _ -- literals removed
+BACKUP TABLE foo TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' -- identifiers removed
 
 parse
@@ -20,6 +22,7 @@ BACKUP TO 'bar'
 BACKUP TO 'bar'
 BACKUP TO ('bar') -- fully parenthetized
 BACKUP TO _ -- literals removed
+BACKUP TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TO 'bar' -- identifiers removed
 
 parse
@@ -28,6 +31,7 @@ BACKUP role TO 'bar'
 BACKUP TABLE role TO 'bar' -- normalized!
 BACKUP TABLE (role) TO ('bar') -- fully parenthetized
 BACKUP TABLE role TO _ -- literals removed
+BACKUP TABLE role TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' -- identifiers removed
 
 parse
@@ -36,6 +40,7 @@ BACKUP TABLE foo INTO 'bar'
 BACKUP TABLE foo INTO 'bar'
 BACKUP TABLE (foo) INTO ('bar') -- fully parenthetized
 BACKUP TABLE foo INTO _ -- literals removed
+BACKUP TABLE foo INTO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ INTO 'bar' -- identifiers removed
 
 parse
@@ -44,6 +49,7 @@ BACKUP TABLE foo INTO LATEST IN 'bar'
 BACKUP TABLE foo INTO LATEST IN 'bar'
 BACKUP TABLE (foo) INTO LATEST IN ('bar') -- fully parenthetized
 BACKUP TABLE foo INTO LATEST IN _ -- literals removed
+BACKUP TABLE foo INTO LATEST IN '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ INTO LATEST IN 'bar' -- identifiers removed
 
 parse
@@ -52,6 +58,7 @@ BACKUP TABLE foo INTO 'subdir' IN 'bar'
 BACKUP TABLE foo INTO 'subdir' IN 'bar'
 BACKUP TABLE (foo) INTO ('subdir') IN ('bar') -- fully parenthetized
 BACKUP TABLE foo INTO _ IN _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "in": syntax error
 BACKUP TABLE _ INTO 'subdir' IN 'bar' -- identifiers removed
 
 parse
@@ -68,6 +75,7 @@ EXPLAIN BACKUP TABLE foo TO 'bar'
 EXPLAIN BACKUP TABLE foo TO 'bar'
 EXPLAIN BACKUP TABLE (foo) TO ('bar') -- fully parenthetized
 EXPLAIN BACKUP TABLE foo TO _ -- literals removed
+EXPLAIN BACKUP TABLE foo TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPLAIN BACKUP TABLE _ TO 'bar' -- identifiers removed
 
 parse
@@ -76,6 +84,7 @@ BACKUP TABLE foo.foo, baz.baz TO 'bar'
 BACKUP TABLE foo.foo, baz.baz TO 'bar'
 BACKUP TABLE (foo.foo), (baz.baz) TO ('bar') -- fully parenthetized
 BACKUP TABLE foo.foo, baz.baz TO _ -- literals removed
+BACKUP TABLE foo.foo, baz.baz TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _._, _._ TO 'bar' -- identifiers removed
 
 parse
@@ -84,6 +93,7 @@ BACKUP foo.foo, baz.baz TO 'bar'
 BACKUP TABLE foo.foo, baz.baz TO 'bar' -- normalized!
 BACKUP TABLE (foo.foo), (baz.baz) TO ('bar') -- fully parenthetized
 BACKUP TABLE foo.foo, baz.baz TO _ -- literals removed
+BACKUP TABLE foo.foo, baz.baz TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _._, _._ TO 'bar' -- identifiers removed
 
 parse
@@ -92,6 +102,7 @@ SHOW BACKUP 'bar'
 SHOW BACKUP 'bar'
 SHOW BACKUP ('bar') -- fully parenthetized
 SHOW BACKUP _ -- literals removed
+SHOW BACKUP '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SHOW BACKUP 'bar' -- identifiers removed
 
 parse
@@ -100,6 +111,7 @@ SHOW BACKUP 'bar' WITH foo = 'bar'
 SHOW BACKUP 'bar' WITH foo = 'bar'
 SHOW BACKUP ('bar') WITH foo = ('bar') -- fully parenthetized
 SHOW BACKUP _ WITH foo = _ -- literals removed
+SHOW BACKUP '_' WITH foo = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SHOW BACKUP 'bar' WITH _ = 'bar' -- identifiers removed
 
 parse
@@ -108,6 +120,7 @@ EXPLAIN SHOW BACKUP 'bar'
 EXPLAIN SHOW BACKUP 'bar'
 EXPLAIN SHOW BACKUP ('bar') -- fully parenthetized
 EXPLAIN SHOW BACKUP _ -- literals removed
+EXPLAIN SHOW BACKUP '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPLAIN SHOW BACKUP 'bar' -- identifiers removed
 
 parse
@@ -116,6 +129,7 @@ SHOW BACKUP RANGES 'bar'
 SHOW BACKUP RANGES 'bar'
 SHOW BACKUP RANGES ('bar') -- fully parenthetized
 SHOW BACKUP RANGES _ -- literals removed
+SHOW BACKUP RANGES '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SHOW BACKUP RANGES 'bar' -- identifiers removed
 
 parse
@@ -124,6 +138,7 @@ SHOW BACKUP FILES 'bar'
 SHOW BACKUP FILES 'bar'
 SHOW BACKUP FILES ('bar') -- fully parenthetized
 SHOW BACKUP FILES _ -- literals removed
+SHOW BACKUP FILES '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SHOW BACKUP FILES 'bar' -- identifiers removed
 
 parse
@@ -132,6 +147,7 @@ SHOW BACKUP FILES 'bar' WITH foo = 'bar'
 SHOW BACKUP FILES 'bar' WITH foo = 'bar'
 SHOW BACKUP FILES ('bar') WITH foo = ('bar') -- fully parenthetized
 SHOW BACKUP FILES _ WITH foo = _ -- literals removed
+SHOW BACKUP FILES '_' WITH foo = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SHOW BACKUP FILES 'bar' WITH _ = 'bar' -- identifiers removed
 
 parse
@@ -140,6 +156,7 @@ SHOW BACKUPS IN 'bar'
 SHOW BACKUPS IN 'bar'
 SHOW BACKUPS IN ('bar') -- fully parenthetized
 SHOW BACKUPS IN _ -- literals removed
+SHOW BACKUPS IN '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SHOW BACKUPS IN 'bar' -- identifiers removed
 
 parse
@@ -156,6 +173,7 @@ SHOW BACKUP 'foo' IN 'bar'
 SHOW BACKUP 'foo' IN 'bar'
 SHOW BACKUP ('foo') IN ('bar') -- fully parenthetized
 SHOW BACKUP _ IN _ -- literals removed
+SHOW BACKUP '_' IN '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SHOW BACKUP 'foo' IN 'bar' -- identifiers removed
 
 parse
@@ -164,6 +182,7 @@ SHOW BACKUP $1 IN $2 WITH foo = 'bar'
 SHOW BACKUP $1 IN $2 WITH foo = 'bar'
 SHOW BACKUP ($1) IN ($2) WITH foo = ('bar') -- fully parenthetized
 SHOW BACKUP $1 IN $2 WITH foo = _ -- literals removed
+SHOW BACKUP $1 IN $2 WITH foo = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SHOW BACKUP $1 IN $2 WITH _ = 'bar' -- identifiers removed
 
 parse
@@ -172,6 +191,7 @@ BACKUP TABLE foo TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz'
 BACKUP TABLE foo TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz'
 BACKUP TABLE (foo) TO ('bar') AS OF SYSTEM TIME ('1') INCREMENTAL FROM ('baz') -- fully parenthetized
 BACKUP TABLE foo TO _ AS OF SYSTEM TIME _ INCREMENTAL FROM _ -- literals removed
+BACKUP TABLE foo TO '_' AS OF SYSTEM TIME _ INCREMENTAL FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz' -- identifiers removed
 
 parse
@@ -180,6 +200,7 @@ BACKUP foo TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz'
 BACKUP TABLE foo TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz' -- normalized!
 BACKUP TABLE (foo) TO ('bar') AS OF SYSTEM TIME ('1') INCREMENTAL FROM ('baz') -- fully parenthetized
 BACKUP TABLE foo TO _ AS OF SYSTEM TIME _ INCREMENTAL FROM _ -- literals removed
+BACKUP TABLE foo TO '_' AS OF SYSTEM TIME _ INCREMENTAL FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz' -- identifiers removed
 
 parse
@@ -188,6 +209,7 @@ BACKUP TABLE foo TO $1 INCREMENTAL FROM 'bar', $2, 'baz'
 BACKUP TABLE foo TO $1 INCREMENTAL FROM 'bar', $2, 'baz'
 BACKUP TABLE (foo) TO ($1) INCREMENTAL FROM ('bar'), ($2), ('baz') -- fully parenthetized
 BACKUP TABLE foo TO $1 INCREMENTAL FROM _, $2, _ -- literals removed
+BACKUP TABLE foo TO $1 INCREMENTAL FROM '_', $2, '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO $1 INCREMENTAL FROM 'bar', $2, 'baz' -- identifiers removed
 
 parse
@@ -196,6 +218,7 @@ BACKUP foo TO $1 INCREMENTAL FROM 'bar', $2, 'baz'
 BACKUP TABLE foo TO $1 INCREMENTAL FROM 'bar', $2, 'baz' -- normalized!
 BACKUP TABLE (foo) TO ($1) INCREMENTAL FROM ('bar'), ($2), ('baz') -- fully parenthetized
 BACKUP TABLE foo TO $1 INCREMENTAL FROM _, $2, _ -- literals removed
+BACKUP TABLE foo TO $1 INCREMENTAL FROM '_', $2, '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO $1 INCREMENTAL FROM 'bar', $2, 'baz' -- identifiers removed
 
 parse
@@ -204,6 +227,7 @@ BACKUP DATABASE foo TO 'bar'
 BACKUP DATABASE foo TO 'bar'
 BACKUP DATABASE foo TO ('bar') -- fully parenthetized
 BACKUP DATABASE foo TO _ -- literals removed
+BACKUP DATABASE foo TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP DATABASE _ TO 'bar' -- identifiers removed
 
 parse
@@ -220,6 +244,7 @@ EXPLAIN BACKUP DATABASE foo TO 'bar'
 EXPLAIN BACKUP DATABASE foo TO 'bar'
 EXPLAIN BACKUP DATABASE foo TO ('bar') -- fully parenthetized
 EXPLAIN BACKUP DATABASE foo TO _ -- literals removed
+EXPLAIN BACKUP DATABASE foo TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPLAIN BACKUP DATABASE _ TO 'bar' -- identifiers removed
 
 parse
@@ -228,6 +253,7 @@ BACKUP DATABASE foo TO bar
 BACKUP DATABASE foo TO 'bar' -- normalized!
 BACKUP DATABASE foo TO ('bar') -- fully parenthetized
 BACKUP DATABASE foo TO _ -- literals removed
+BACKUP DATABASE foo TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP DATABASE _ TO 'bar' -- identifiers removed
 
 
@@ -237,6 +263,7 @@ BACKUP DATABASE foo, baz TO 'bar'
 BACKUP DATABASE foo, baz TO 'bar'
 BACKUP DATABASE foo, baz TO ('bar') -- fully parenthetized
 BACKUP DATABASE foo, baz TO _ -- literals removed
+BACKUP DATABASE foo, baz TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP DATABASE _, _ TO 'bar' -- identifiers removed
 
 parse
@@ -245,6 +272,7 @@ BACKUP DATABASE foo TO "bar.12" INCREMENTAL FROM "baz.34"
 BACKUP DATABASE foo TO 'bar.12' INCREMENTAL FROM 'baz.34' -- normalized!
 BACKUP DATABASE foo TO ('bar.12') INCREMENTAL FROM ('baz.34') -- fully parenthetized
 BACKUP DATABASE foo TO _ INCREMENTAL FROM _ -- literals removed
+BACKUP DATABASE foo TO '_' INCREMENTAL FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP DATABASE _ TO 'bar.12' INCREMENTAL FROM 'baz.34' -- identifiers removed
 
 
@@ -254,6 +282,7 @@ BACKUP DATABASE foo TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz'
 BACKUP DATABASE foo TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz'
 BACKUP DATABASE foo TO ('bar') AS OF SYSTEM TIME ('1') INCREMENTAL FROM ('baz') -- fully parenthetized
 BACKUP DATABASE foo TO _ AS OF SYSTEM TIME _ INCREMENTAL FROM _ -- literals removed
+BACKUP DATABASE foo TO '_' AS OF SYSTEM TIME _ INCREMENTAL FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP DATABASE _ TO 'bar' AS OF SYSTEM TIME '1' INCREMENTAL FROM 'baz' -- identifiers removed
 
 parse
@@ -270,6 +299,7 @@ BACKUP DATABASE foo TO ($1, $2) INCREMENTAL FROM 'baz'
 BACKUP DATABASE foo TO ($1, $2) INCREMENTAL FROM 'baz'
 BACKUP DATABASE foo TO (($1), ($2)) INCREMENTAL FROM ('baz') -- fully parenthetized
 BACKUP DATABASE foo TO ($1, $2) INCREMENTAL FROM _ -- literals removed
+BACKUP DATABASE foo TO ($1, $2) INCREMENTAL FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP DATABASE _ TO ($1, $2) INCREMENTAL FROM 'baz' -- identifiers removed
 
 parse
@@ -278,6 +308,7 @@ BACKUP foo TO 'bar' WITH ENCRYPTION_PASSPHRASE = 'secret', revision_history
 BACKUP TABLE foo TO 'bar' WITH revision_history, encryption_passphrase = '*****' -- normalized!
 BACKUP TABLE (foo) TO ('bar') WITH revision_history, encryption_passphrase = '*****' -- fully parenthetized
 BACKUP TABLE foo TO _ WITH revision_history, encryption_passphrase = '*****' -- literals removed
+BACKUP TABLE foo TO '_' WITH revision_history, encryption_passphrase = '*****' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' WITH revision_history, encryption_passphrase = '*****' -- identifiers removed
 BACKUP TABLE foo TO 'bar' WITH revision_history, encryption_passphrase = 'secret' -- passwords exposed
 
@@ -287,6 +318,7 @@ BACKUP foo TO 'bar' WITH KMS = 'foo', revision_history
 BACKUP TABLE foo TO 'bar' WITH revision_history, kms = 'foo' -- normalized!
 BACKUP TABLE (foo) TO ('bar') WITH revision_history, kms = ('foo') -- fully parenthetized
 BACKUP TABLE foo TO _ WITH revision_history, kms = _ -- literals removed
+BACKUP TABLE foo TO '_' WITH revision_history, kms = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' WITH revision_history, kms = 'foo' -- identifiers removed
 
 parse
@@ -295,6 +327,7 @@ BACKUP foo TO 'bar' WITH KMS = ('foo', 'bar'), revision_history
 BACKUP TABLE foo TO 'bar' WITH revision_history, kms = ('foo', 'bar') -- normalized!
 BACKUP TABLE (foo) TO ('bar') WITH revision_history, kms = (('foo'), ('bar')) -- fully parenthetized
 BACKUP TABLE foo TO _ WITH revision_history, kms = (_, _) -- literals removed
+BACKUP TABLE foo TO '_' WITH revision_history, kms = ('_', '_') -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' WITH revision_history, kms = ('foo', 'bar') -- identifiers removed
 
 parse
@@ -303,6 +336,7 @@ BACKUP foo TO 'bar' WITH OPTIONS (detached, ENCRYPTION_PASSPHRASE = 'secret', re
 BACKUP TABLE foo TO 'bar' WITH revision_history, encryption_passphrase = '*****', detached -- normalized!
 BACKUP TABLE (foo) TO ('bar') WITH revision_history, encryption_passphrase = '*****', detached -- fully parenthetized
 BACKUP TABLE foo TO _ WITH revision_history, encryption_passphrase = '*****', detached -- literals removed
+BACKUP TABLE foo TO '_' WITH revision_history, encryption_passphrase = '*****', detached -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' WITH revision_history, encryption_passphrase = '*****', detached -- identifiers removed
 BACKUP TABLE foo TO 'bar' WITH revision_history, encryption_passphrase = 'secret', detached -- passwords exposed
 
@@ -312,6 +346,7 @@ BACKUP foo TO 'bar' WITH OPTIONS (detached, KMS = ('foo', 'bar'), revision_histo
 BACKUP TABLE foo TO 'bar' WITH revision_history, detached, kms = ('foo', 'bar') -- normalized!
 BACKUP TABLE (foo) TO ('bar') WITH revision_history, detached, kms = (('foo'), ('bar')) -- fully parenthetized
 BACKUP TABLE foo TO _ WITH revision_history, detached, kms = (_, _) -- literals removed
+BACKUP TABLE foo TO '_' WITH revision_history, detached, kms = ('_', '_') -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' WITH revision_history, detached, kms = ('foo', 'bar') -- identifiers removed
 
 parse
@@ -320,6 +355,7 @@ BACKUP TENANT 36 TO 'bar'
 BACKUP TENANT 36 TO 'bar'
 BACKUP TENANT 36 TO ('bar') -- fully parenthetized
 BACKUP TENANT 36 TO _ -- literals removed
+BACKUP TENANT 36 TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TENANT 36 TO 'bar' -- identifiers removed
 
 parse
@@ -328,6 +364,7 @@ RESTORE TABLE foo FROM 'bar'
 RESTORE TABLE foo FROM 'bar'
 RESTORE TABLE (foo) FROM ('bar') -- fully parenthetized
 RESTORE TABLE foo FROM _ -- literals removed
+RESTORE TABLE foo FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM 'bar' -- identifiers removed
 
 parse
@@ -336,6 +373,7 @@ EXPLAIN RESTORE TABLE foo FROM 'bar'
 EXPLAIN RESTORE TABLE foo FROM 'bar'
 EXPLAIN RESTORE TABLE (foo) FROM ('bar') -- fully parenthetized
 EXPLAIN RESTORE TABLE foo FROM _ -- literals removed
+EXPLAIN RESTORE TABLE foo FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPLAIN RESTORE TABLE _ FROM 'bar' -- identifiers removed
 
 parse
@@ -344,6 +382,7 @@ RESTORE foo FROM 'bar'
 RESTORE TABLE foo FROM 'bar' -- normalized!
 RESTORE TABLE (foo) FROM ('bar') -- fully parenthetized
 RESTORE TABLE foo FROM _ -- literals removed
+RESTORE TABLE foo FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM 'bar' -- identifiers removed
 
 parse
@@ -377,6 +416,7 @@ RESTORE TABLE foo FROM $1, $2, 'bar'
 RESTORE TABLE foo FROM $1, $2, 'bar'
 RESTORE TABLE (foo) FROM ($1), ($2), ('bar') -- fully parenthetized
 RESTORE TABLE foo FROM $1, $2, _ -- literals removed
+RESTORE TABLE foo FROM $1, $2, '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM $1, $2, 'bar' -- identifiers removed
 
 parse
@@ -385,6 +425,7 @@ RESTORE foo FROM $1, $2, 'bar'
 RESTORE TABLE foo FROM $1, $2, 'bar' -- normalized!
 RESTORE TABLE (foo) FROM ($1), ($2), ('bar') -- fully parenthetized
 RESTORE TABLE foo FROM $1, $2, _ -- literals removed
+RESTORE TABLE foo FROM $1, $2, '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM $1, $2, 'bar' -- identifiers removed
 
 parse
@@ -393,6 +434,7 @@ RESTORE TABLE foo FROM 'abc' IN $1, $2, 'bar'
 RESTORE TABLE foo FROM 'abc' IN $1, $2, 'bar'
 RESTORE TABLE (foo) FROM ('abc') IN ($1), ($2), ('bar') -- fully parenthetized
 RESTORE TABLE foo FROM _ IN $1, $2, _ -- literals removed
+RESTORE TABLE foo FROM '_' IN $1, $2, '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM 'abc' IN $1, $2, 'bar' -- identifiers removed
 
 parse
@@ -401,6 +443,7 @@ RESTORE TABLE foo FROM $4 IN $1, $2, 'bar'
 RESTORE TABLE foo FROM $4 IN $1, $2, 'bar'
 RESTORE TABLE (foo) FROM ($4) IN ($1), ($2), ('bar') -- fully parenthetized
 RESTORE TABLE foo FROM $4 IN $1, $2, _ -- literals removed
+RESTORE TABLE foo FROM $4 IN $1, $2, '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM $4 IN $1, $2, 'bar' -- identifiers removed
 
 parse
@@ -409,6 +452,7 @@ RESTORE TABLE foo, baz FROM 'bar'
 RESTORE TABLE foo, baz FROM 'bar'
 RESTORE TABLE (foo), (baz) FROM ('bar') -- fully parenthetized
 RESTORE TABLE foo, baz FROM _ -- literals removed
+RESTORE TABLE foo, baz FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _, _ FROM 'bar' -- identifiers removed
 
 
@@ -418,6 +462,7 @@ RESTORE foo, baz FROM 'bar'
 RESTORE TABLE foo, baz FROM 'bar' -- normalized!
 RESTORE TABLE (foo), (baz) FROM ('bar') -- fully parenthetized
 RESTORE TABLE foo, baz FROM _ -- literals removed
+RESTORE TABLE foo, baz FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _, _ FROM 'bar' -- identifiers removed
 
 parse
@@ -426,6 +471,7 @@ RESTORE TABLE foo, baz FROM 'bar' AS OF SYSTEM TIME '1'
 RESTORE TABLE foo, baz FROM 'bar' AS OF SYSTEM TIME '1'
 RESTORE TABLE (foo), (baz) FROM ('bar') AS OF SYSTEM TIME ('1') -- fully parenthetized
 RESTORE TABLE foo, baz FROM _ AS OF SYSTEM TIME _ -- literals removed
+RESTORE TABLE foo, baz FROM '_' AS OF SYSTEM TIME _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _, _ FROM 'bar' AS OF SYSTEM TIME '1' -- identifiers removed
 
 
@@ -435,6 +481,7 @@ RESTORE foo, baz FROM 'bar' AS OF SYSTEM TIME '1'
 RESTORE TABLE foo, baz FROM 'bar' AS OF SYSTEM TIME '1' -- normalized!
 RESTORE TABLE (foo), (baz) FROM ('bar') AS OF SYSTEM TIME ('1') -- fully parenthetized
 RESTORE TABLE foo, baz FROM _ AS OF SYSTEM TIME _ -- literals removed
+RESTORE TABLE foo, baz FROM '_' AS OF SYSTEM TIME _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _, _ FROM 'bar' AS OF SYSTEM TIME '1' -- identifiers removed
 
 parse
@@ -443,6 +490,7 @@ RESTORE DATABASE foo FROM 'bar'
 RESTORE DATABASE foo FROM 'bar'
 RESTORE DATABASE foo FROM ('bar') -- fully parenthetized
 RESTORE DATABASE foo FROM _ -- literals removed
+RESTORE DATABASE foo FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE DATABASE _ FROM 'bar' -- identifiers removed
 
 parse
@@ -459,6 +507,7 @@ EXPLAIN RESTORE DATABASE foo FROM 'bar'
 EXPLAIN RESTORE DATABASE foo FROM 'bar'
 EXPLAIN RESTORE DATABASE foo FROM ('bar') -- fully parenthetized
 EXPLAIN RESTORE DATABASE foo FROM _ -- literals removed
+EXPLAIN RESTORE DATABASE foo FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPLAIN RESTORE DATABASE _ FROM 'bar' -- identifiers removed
 
 parse
@@ -467,6 +516,7 @@ RESTORE DATABASE foo FROM bar
 RESTORE DATABASE foo FROM 'bar' -- normalized!
 RESTORE DATABASE foo FROM ('bar') -- fully parenthetized
 RESTORE DATABASE foo FROM _ -- literals removed
+RESTORE DATABASE foo FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE DATABASE _ FROM 'bar' -- identifiers removed
 
 
@@ -476,6 +526,7 @@ RESTORE DATABASE foo, baz FROM 'bar'
 RESTORE DATABASE foo, baz FROM 'bar'
 RESTORE DATABASE foo, baz FROM ('bar') -- fully parenthetized
 RESTORE DATABASE foo, baz FROM _ -- literals removed
+RESTORE DATABASE foo, baz FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE DATABASE _, _ FROM 'bar' -- identifiers removed
 
 parse
@@ -484,6 +535,7 @@ RESTORE DATABASE foo, baz FROM 'bar' AS OF SYSTEM TIME '1'
 RESTORE DATABASE foo, baz FROM 'bar' AS OF SYSTEM TIME '1'
 RESTORE DATABASE foo, baz FROM ('bar') AS OF SYSTEM TIME ('1') -- fully parenthetized
 RESTORE DATABASE foo, baz FROM _ AS OF SYSTEM TIME _ -- literals removed
+RESTORE DATABASE foo, baz FROM '_' AS OF SYSTEM TIME _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE DATABASE _, _ FROM 'bar' AS OF SYSTEM TIME '1' -- identifiers removed
 
 parse
@@ -588,6 +640,7 @@ RESTORE FROM $1, $2, 'bar'
 RESTORE FROM $1, $2, 'bar'
 RESTORE FROM ($1), ($2), ('bar') -- fully parenthetized
 RESTORE FROM $1, $2, _ -- literals removed
+RESTORE FROM $1, $2, '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE FROM $1, $2, 'bar' -- identifiers removed
 
 parse
@@ -596,6 +649,7 @@ RESTORE FROM $4 IN $1, $2, 'bar'
 RESTORE FROM $4 IN $1, $2, 'bar'
 RESTORE FROM ($4) IN ($1), ($2), ('bar') -- fully parenthetized
 RESTORE FROM $4 IN $1, $2, _ -- literals removed
+RESTORE FROM $4 IN $1, $2, '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE FROM $4 IN $1, $2, 'bar' -- identifiers removed
 
 parse
@@ -604,6 +658,7 @@ RESTORE FROM $4 IN $1, $2, 'bar' AS OF SYSTEM TIME '1' WITH skip_missing_foreign
 RESTORE FROM $4 IN $1, $2, 'bar' AS OF SYSTEM TIME '1' WITH skip_missing_foreign_keys
 RESTORE FROM ($4) IN ($1), ($2), ('bar') AS OF SYSTEM TIME ('1') WITH skip_missing_foreign_keys -- fully parenthetized
 RESTORE FROM $4 IN $1, $2, _ AS OF SYSTEM TIME _ WITH skip_missing_foreign_keys -- literals removed
+RESTORE FROM $4 IN $1, $2, '_' AS OF SYSTEM TIME _ WITH skip_missing_foreign_keys -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE FROM $4 IN $1, $2, 'bar' AS OF SYSTEM TIME '1' WITH skip_missing_foreign_keys -- identifiers removed
 
 parse
@@ -612,6 +667,7 @@ RESTORE abc.xzy FROM 'a' WITH into_db = 'foo', skip_missing_foreign_keys
 RESTORE TABLE abc.xzy FROM 'a' WITH into_db = 'foo', skip_missing_foreign_keys -- normalized!
 RESTORE TABLE (abc.xzy) FROM ('a') WITH into_db = ('foo'), skip_missing_foreign_keys -- fully parenthetized
 RESTORE TABLE abc.xzy FROM _ WITH into_db = _, skip_missing_foreign_keys -- literals removed
+RESTORE TABLE abc.xzy FROM '_' WITH into_db = '_', skip_missing_foreign_keys -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _._ FROM 'a' WITH into_db = 'foo', skip_missing_foreign_keys -- identifiers removed
 
 parse
@@ -620,6 +676,7 @@ RESTORE FROM 'a' WITH into_db = 'foo', skip_missing_foreign_keys
 RESTORE FROM 'a' WITH into_db = 'foo', skip_missing_foreign_keys
 RESTORE FROM ('a') WITH into_db = ('foo'), skip_missing_foreign_keys -- fully parenthetized
 RESTORE FROM _ WITH into_db = _, skip_missing_foreign_keys -- literals removed
+RESTORE FROM '_' WITH into_db = '_', skip_missing_foreign_keys -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE FROM 'a' WITH into_db = 'foo', skip_missing_foreign_keys -- identifiers removed
 
 parse
@@ -629,6 +686,7 @@ skip_missing_foreign_keys, skip_missing_sequences, skip_missing_sequence_owners,
 RESTORE TABLE foo FROM 'bar' WITH encryption_passphrase = 'secret', into_db = 'baz', skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views, detached -- normalized!
 RESTORE TABLE (foo) FROM ('bar') WITH encryption_passphrase = ('secret'), into_db = ('baz'), skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views, detached -- fully parenthetized
 RESTORE TABLE foo FROM _ WITH encryption_passphrase = _, into_db = _, skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views, detached -- literals removed
+RESTORE TABLE foo FROM '_' WITH encryption_passphrase = '_', into_db = '_', skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views, detached -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM 'bar' WITH encryption_passphrase = 'secret', into_db = 'baz', skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views, detached -- identifiers removed
 
 parse
@@ -638,6 +696,7 @@ SKIP_MISSING_FOREIGN_KEYS, SKIP_MISSING_SEQUENCES, SKIP_MISSING_SEQUENCE_OWNERS,
 RESTORE TABLE foo FROM 'bar' WITH encryption_passphrase = 'secret', into_db = 'baz', skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views -- normalized!
 RESTORE TABLE (foo) FROM ('bar') WITH encryption_passphrase = ('secret'), into_db = ('baz'), skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views -- fully parenthetized
 RESTORE TABLE foo FROM _ WITH encryption_passphrase = _, into_db = _, skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views -- literals removed
+RESTORE TABLE foo FROM '_' WITH encryption_passphrase = '_', into_db = '_', skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM 'bar' WITH encryption_passphrase = 'secret', into_db = 'baz', skip_missing_foreign_keys, skip_missing_sequence_owners, skip_missing_sequences, skip_missing_views -- identifiers removed
 
 
@@ -655,6 +714,7 @@ RESTORE TENANT 123 FROM REPLICATION STREAM FROM 'bar'
 RESTORE TENANT 123 FROM REPLICATION STREAM FROM 'bar'
 RESTORE TENANT 123 FROM REPLICATION STREAM FROM ('bar') -- fully parenthetized
 RESTORE TENANT 123 FROM REPLICATION STREAM FROM _ -- literals removed
+RESTORE TENANT 123 FROM REPLICATION STREAM FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TENANT 123 FROM REPLICATION STREAM FROM 'bar' -- identifiers removed
 
 parse
@@ -671,6 +731,7 @@ RESTORE TENANT 123 FROM REPLICATION STREAM FROM 'bar' AS OF SYSTEM TIME '1'
 RESTORE TENANT 123 FROM REPLICATION STREAM FROM 'bar' AS OF SYSTEM TIME '1'
 RESTORE TENANT 123 FROM REPLICATION STREAM FROM ('bar') AS OF SYSTEM TIME ('1') -- fully parenthetized
 RESTORE TENANT 123 FROM REPLICATION STREAM FROM _ AS OF SYSTEM TIME _ -- literals removed
+RESTORE TENANT 123 FROM REPLICATION STREAM FROM '_' AS OF SYSTEM TIME _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TENANT 123 FROM REPLICATION STREAM FROM 'bar' AS OF SYSTEM TIME '1' -- identifiers removed
 
 parse
@@ -687,6 +748,7 @@ BACKUP TABLE foo TO 'bar' WITH revision_history, detached
 BACKUP TABLE foo TO 'bar' WITH revision_history, detached
 BACKUP TABLE (foo) TO ('bar') WITH revision_history, detached -- fully parenthetized
 BACKUP TABLE foo TO _ WITH revision_history, detached -- literals removed
+BACKUP TABLE foo TO '_' WITH revision_history, detached -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 BACKUP TABLE _ TO 'bar' WITH revision_history, detached -- identifiers removed
 
 parse
@@ -695,4 +757,5 @@ RESTORE TABLE foo FROM 'bar' WITH skip_missing_foreign_keys, skip_missing_sequen
 RESTORE TABLE foo FROM 'bar' WITH skip_missing_foreign_keys, skip_missing_sequences, detached
 RESTORE TABLE (foo) FROM ('bar') WITH skip_missing_foreign_keys, skip_missing_sequences, detached -- fully parenthetized
 RESTORE TABLE foo FROM _ WITH skip_missing_foreign_keys, skip_missing_sequences, detached -- literals removed
+RESTORE TABLE foo FROM '_' WITH skip_missing_foreign_keys, skip_missing_sequences, detached -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 RESTORE TABLE _ FROM 'bar' WITH skip_missing_foreign_keys, skip_missing_sequences, detached -- identifiers removed
diff --git a/pkg/sql/parser/testdata/parse/changefeed b/pkg/sql/parser/testdata/parse/changefeed
index 65521c220cf6..90e640ff3093 100644
--- a/pkg/sql/parser/testdata/parse/changefeed
+++ b/pkg/sql/parser/testdata/parse/changefeed
@@ -12,6 +12,7 @@ EXPLAIN CREATE CHANGEFEED FOR TABLE foo INTO 'sink'
 EXPLAIN CREATE CHANGEFEED FOR TABLE foo INTO 'sink'
 EXPLAIN CREATE CHANGEFEED FOR TABLE (foo) INTO ('sink') -- fully parenthetized
 EXPLAIN CREATE CHANGEFEED FOR TABLE foo INTO _ -- literals removed
+EXPLAIN CREATE CHANGEFEED FOR TABLE foo INTO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPLAIN CREATE CHANGEFEED FOR TABLE _ INTO 'sink' -- identifiers removed
 
 parse
@@ -20,6 +21,7 @@ CREATE CHANGEFEED FOR foo INTO 'sink'
 CREATE CHANGEFEED FOR TABLE foo INTO 'sink' -- normalized!
 CREATE CHANGEFEED FOR TABLE (foo) INTO ('sink') -- fully parenthetized
 CREATE CHANGEFEED FOR TABLE foo INTO _ -- literals removed
+CREATE CHANGEFEED FOR TABLE foo INTO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE CHANGEFEED FOR TABLE _ INTO 'sink' -- identifiers removed
 
 parse
@@ -28,6 +30,7 @@ CREATE CHANGEFEED FOR TABLE foo INTO sink
 CREATE CHANGEFEED FOR TABLE foo INTO 'sink' -- normalized!
 CREATE CHANGEFEED FOR TABLE (foo) INTO ('sink') -- fully parenthetized
 CREATE CHANGEFEED FOR TABLE foo INTO _ -- literals removed
+CREATE CHANGEFEED FOR TABLE foo INTO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE CHANGEFEED FOR TABLE _ INTO 'sink' -- identifiers removed
 
 parse
@@ -36,6 +39,7 @@ CREATE CHANGEFEED FOR TABLE foo, db.bar, schema.db.foo INTO 'sink'
 CREATE CHANGEFEED FOR TABLE foo, db.bar, schema.db.foo INTO 'sink'
 CREATE CHANGEFEED FOR TABLE (foo), (db.bar), (schema.db.foo) INTO ('sink') -- fully parenthetized
 CREATE CHANGEFEED FOR TABLE foo, db.bar, schema.db.foo INTO _ -- literals removed
+CREATE CHANGEFEED FOR TABLE foo, db.bar, schema.db.foo INTO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE CHANGEFEED FOR TABLE _, _._, _._._ INTO 'sink' -- identifiers removed
 
 parse
@@ -44,6 +48,7 @@ CREATE CHANGEFEED FOR TABLE foo INTO 'sink'
 CREATE CHANGEFEED FOR TABLE foo INTO 'sink'
 CREATE CHANGEFEED FOR TABLE (foo) INTO ('sink') -- fully parenthetized
 CREATE CHANGEFEED FOR TABLE foo INTO _ -- literals removed
+CREATE CHANGEFEED FOR TABLE foo INTO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE CHANGEFEED FOR TABLE _ INTO 'sink' -- identifiers removed
 
 ## TODO(dan): Implement:
@@ -57,4 +62,5 @@ CREATE CHANGEFEED FOR TABLE foo INTO 'sink' WITH bar = 'baz'
 CREATE CHANGEFEED FOR TABLE foo INTO 'sink' WITH bar = 'baz'
 CREATE CHANGEFEED FOR TABLE (foo) INTO ('sink') WITH bar = ('baz') -- fully parenthetized
 CREATE CHANGEFEED FOR TABLE foo INTO _ WITH bar = _ -- literals removed
+CREATE CHANGEFEED FOR TABLE foo INTO '_' WITH bar = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE CHANGEFEED FOR TABLE _ INTO 'sink' WITH _ = 'baz' -- identifiers removed
diff --git a/pkg/sql/parser/testdata/parse/comment b/pkg/sql/parser/testdata/parse/comment
index 4c62ec6c0d13..02be16afa6a9 100644
--- a/pkg/sql/parser/testdata/parse/comment
+++ b/pkg/sql/parser/testdata/parse/comment
@@ -5,6 +5,7 @@ COMMENT ON COLUMN a.b IS 'a'
 COMMENT ON COLUMN a.b IS 'a'
 (COMMENT ON COLUMN (a.b) IS 'a') -- fully parenthetized
 COMMENT ON COLUMN a.b IS _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 COMMENT ON COLUMN _._ IS 'a' -- identifiers removed
 
 parse
@@ -21,6 +22,7 @@ COMMENT ON COLUMN a.b.c IS 'a'
 COMMENT ON COLUMN a.b.c IS 'a'
 (COMMENT ON COLUMN (a.b.c) IS 'a') -- fully parenthetized
 COMMENT ON COLUMN a.b.c IS _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 COMMENT ON COLUMN _._._ IS 'a' -- identifiers removed
 
 parse
@@ -29,6 +31,7 @@ COMMENT ON COLUMN a.b.c.d IS 'a'
 COMMENT ON COLUMN a.b.c.d IS 'a'
 (COMMENT ON COLUMN (a.b.c.d) IS 'a') -- fully parenthetized
 COMMENT ON COLUMN a.b.c.d IS _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 COMMENT ON COLUMN _._._._ IS 'a' -- identifiers removed
 
 parse
@@ -37,6 +40,7 @@ COMMENT ON DATABASE foo IS 'a'
 COMMENT ON DATABASE foo IS 'a'
 COMMENT ON DATABASE foo IS 'a' -- fully parenthetized
 COMMENT ON DATABASE foo IS _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 COMMENT ON DATABASE _ IS 'a' -- identifiers removed
 
 parse
@@ -53,6 +57,7 @@ COMMENT ON INDEX foo IS 'a'
 COMMENT ON INDEX foo IS 'a'
 COMMENT ON INDEX foo IS 'a' -- fully parenthetized
 COMMENT ON INDEX foo IS _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 COMMENT ON INDEX _ IS 'a' -- identifiers removed
 
 parse
@@ -69,6 +74,7 @@ COMMENT ON TABLE foo IS 'a'
 COMMENT ON TABLE foo IS 'a'
 COMMENT ON TABLE foo IS 'a' -- fully parenthetized
 COMMENT ON TABLE foo IS _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 COMMENT ON TABLE _ IS 'a' -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/copy b/pkg/sql/parser/testdata/parse/copy
index 64d25a898f8d..2917dcb47d60 100644
--- a/pkg/sql/parser/testdata/parse/copy
+++ b/pkg/sql/parser/testdata/parse/copy
@@ -20,6 +20,7 @@ COPY crdb_internal.file_upload FROM STDIN WITH destination = 'filename'
 COPY crdb_internal.file_upload FROM STDIN WITH destination = 'filename'
 COPY crdb_internal.file_upload FROM STDIN WITH destination = ('filename') -- fully parenthetized
 COPY crdb_internal.file_upload FROM STDIN WITH destination = _ -- literals removed
+COPY crdb_internal.file_upload FROM STDIN WITH destination = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 COPY _._ FROM STDIN WITH destination = 'filename' -- identifiers removed
 
 parse
@@ -36,6 +37,7 @@ COPY crdb_internal.file_upload FROM STDIN WITH BINARY destination = 'filename'
 COPY crdb_internal.file_upload FROM STDIN WITH BINARY destination = 'filename'
 COPY crdb_internal.file_upload FROM STDIN WITH BINARY destination = ('filename') -- fully parenthetized
 COPY crdb_internal.file_upload FROM STDIN WITH BINARY destination = _ -- literals removed
+COPY crdb_internal.file_upload FROM STDIN WITH BINARY destination = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 COPY _._ FROM STDIN WITH BINARY destination = 'filename' -- identifiers removed
 
 parse
@@ -44,6 +46,7 @@ COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER ',' NULL 'NUL'
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER ',' NULL 'NUL'
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER (',') NULL ('NUL') -- fully parenthetized
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER _ NULL _ -- literals removed
+COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER '_' NULL '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 COPY _ (_, _, _) FROM STDIN WITH CSV DELIMITER ',' NULL 'NUL' -- identifiers removed
 
 parse
@@ -52,6 +55,7 @@ COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER ',' destination = 'filename'
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER ',' destination = 'filename'
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER (',') destination = ('filename') -- fully parenthetized
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER _ destination = _ -- literals removed
+COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER '_' destination = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 COPY _ (_, _, _) FROM STDIN WITH CSV DELIMITER ',' destination = 'filename' -- identifiers removed
 
 parse
@@ -68,6 +72,7 @@ COPY t (a, b, c) FROM STDIN destination = 'filename' BINARY
 COPY t (a, b, c) FROM STDIN WITH BINARY destination = 'filename' -- normalized!
 COPY t (a, b, c) FROM STDIN WITH BINARY destination = ('filename') -- fully parenthetized
 COPY t (a, b, c) FROM STDIN WITH BINARY destination = _ -- literals removed
+COPY t (a, b, c) FROM STDIN WITH BINARY destination = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 COPY _ (_, _, _) FROM STDIN WITH BINARY destination = 'filename' -- identifiers removed
 
 parse
@@ -76,4 +81,5 @@ COPY t (a, b, c) FROM STDIN destination = 'filename' CSV DELIMITER ' '
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER ' ' destination = 'filename' -- normalized!
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER (' ') destination = ('filename') -- fully parenthetized
 COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER _ destination = _ -- literals removed
+COPY t (a, b, c) FROM STDIN WITH CSV DELIMITER '_' destination = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 COPY _ (_, _, _) FROM STDIN WITH CSV DELIMITER ' ' destination = 'filename' -- identifiers removed
diff --git a/pkg/sql/parser/testdata/parse/create_database b/pkg/sql/parser/testdata/parse/create_database
index fc764e418efb..cb34fe8f99dc 100644
--- a/pkg/sql/parser/testdata/parse/create_database
+++ b/pkg/sql/parser/testdata/parse/create_database
@@ -129,6 +129,7 @@ CREATE DATABASE a CONNECTION LIMIT = 13
 CREATE DATABASE a CONNECTION LIMIT = 13
 CREATE DATABASE a CONNECTION LIMIT = 13 -- fully parenthetized
 CREATE DATABASE a CONNECTION LIMIT = _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE DATABASE _ CONNECTION LIMIT = 13 -- identifiers removed
 
 parse
@@ -137,6 +138,7 @@ CREATE DATABASE a WITH CONNECTION LIMIT = 13
 CREATE DATABASE a CONNECTION LIMIT = 13 -- normalized!
 CREATE DATABASE a CONNECTION LIMIT = 13 -- fully parenthetized
 CREATE DATABASE a CONNECTION LIMIT = _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE DATABASE _ CONNECTION LIMIT = 13 -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/create_misc b/pkg/sql/parser/testdata/parse/create_misc
index c886c262be76..2c3fc978e194 100644
--- a/pkg/sql/parser/testdata/parse/create_misc
+++ b/pkg/sql/parser/testdata/parse/create_misc
@@ -79,6 +79,7 @@ CREATE STATISTICS a ON col1 FROM t WITH OPTIONS THROTTLING 0.9
 CREATE STATISTICS a ON col1 FROM t WITH OPTIONS THROTTLING 0.9
 CREATE STATISTICS a ON col1 FROM t WITH OPTIONS THROTTLING 0.9 -- fully parenthetized
 CREATE STATISTICS a ON col1 FROM t WITH OPTIONS THROTTLING _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE STATISTICS _ ON _ FROM _ WITH OPTIONS THROTTLING 0.9 -- identifiers removed
 
 parse
@@ -95,6 +96,7 @@ CREATE STATISTICS a ON col1 FROM t WITH OPTIONS THROTTLING 0.1 AS OF SYSTEM TIME
 CREATE STATISTICS a ON col1 FROM t WITH OPTIONS THROTTLING 0.1 AS OF SYSTEM TIME '2016-01-01'
 CREATE STATISTICS a ON col1 FROM t WITH OPTIONS THROTTLING 0.1 AS OF SYSTEM TIME ('2016-01-01') -- fully parenthetized
 CREATE STATISTICS a ON col1 FROM t WITH OPTIONS THROTTLING _ AS OF SYSTEM TIME _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE STATISTICS _ ON _ FROM _ WITH OPTIONS THROTTLING 0.1 AS OF SYSTEM TIME '2016-01-01' -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/create_schedule b/pkg/sql/parser/testdata/parse/create_schedule
index 897fa1b2b0b4..bbe8052ad526 100644
--- a/pkg/sql/parser/testdata/parse/create_schedule
+++ b/pkg/sql/parser/testdata/parse/create_schedule
@@ -4,6 +4,7 @@ CREATE SCHEDULE FOR BACKUP TABLE foo INTO 'bar' RECURRING '@hourly'
 CREATE SCHEDULE FOR BACKUP TABLE foo INTO 'bar' RECURRING '@hourly'
 CREATE SCHEDULE FOR BACKUP TABLE (foo) INTO ('bar') RECURRING ('@hourly') -- fully parenthetized
 CREATE SCHEDULE FOR BACKUP TABLE foo INTO _ RECURRING _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SCHEDULE FOR BACKUP TABLE _ INTO 'bar' RECURRING '@hourly' -- identifiers removed
 
 parse
@@ -12,6 +13,7 @@ CREATE SCHEDULE 'my schedule' FOR BACKUP TABLE foo INTO 'bar' RECURRING '@daily'
 CREATE SCHEDULE 'my schedule' FOR BACKUP TABLE foo INTO 'bar' RECURRING '@daily'
 CREATE SCHEDULE ('my schedule') FOR BACKUP TABLE (foo) INTO ('bar') RECURRING ('@daily') -- fully parenthetized
 CREATE SCHEDULE _ FOR BACKUP TABLE foo INTO _ RECURRING _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SCHEDULE 'my schedule' FOR BACKUP TABLE _ INTO 'bar' RECURRING '@daily' -- identifiers removed
 
 parse
@@ -20,6 +22,7 @@ CREATE SCHEDULE FOR BACKUP TABLE foo INTO 'bar' RECURRING '@daily'
 CREATE SCHEDULE FOR BACKUP TABLE foo INTO 'bar' RECURRING '@daily'
 CREATE SCHEDULE FOR BACKUP TABLE (foo) INTO ('bar') RECURRING ('@daily') -- fully parenthetized
 CREATE SCHEDULE FOR BACKUP TABLE foo INTO _ RECURRING _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SCHEDULE FOR BACKUP TABLE _ INTO 'bar' RECURRING '@daily' -- identifiers removed
 
 parse
@@ -28,6 +31,7 @@ CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO 'bar' RECURRING '@daily' FUL
 CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO 'bar' RECURRING '@daily' FULL BACKUP ALWAYS
 CREATE SCHEDULE FOR BACKUP TABLE (foo), (bar), (buz) INTO ('bar') RECURRING ('@daily') FULL BACKUP ALWAYS -- fully parenthetized
 CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO _ RECURRING _ FULL BACKUP ALWAYS -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SCHEDULE FOR BACKUP TABLE _, _, _ INTO 'bar' RECURRING '@daily' FULL BACKUP ALWAYS -- identifiers removed
 
 parse
@@ -36,6 +40,7 @@ CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO 'bar' RECURRING '@daily' FUL
 CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO 'bar' RECURRING '@daily' FULL BACKUP '@weekly'
 CREATE SCHEDULE FOR BACKUP TABLE (foo), (bar), (buz) INTO ('bar') RECURRING ('@daily') FULL BACKUP ('@weekly') -- fully parenthetized
 CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO _ RECURRING _ FULL BACKUP _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SCHEDULE FOR BACKUP TABLE _, _, _ INTO 'bar' RECURRING '@daily' FULL BACKUP '@weekly' -- identifiers removed
 
 parse
@@ -44,6 +49,7 @@ CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO 'bar' WITH revision_history
 CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO 'bar' WITH revision_history RECURRING '@daily' FULL BACKUP '@weekly'
 CREATE SCHEDULE FOR BACKUP TABLE (foo), (bar), (buz) INTO ('bar') WITH revision_history RECURRING ('@daily') FULL BACKUP ('@weekly') -- fully parenthetized
 CREATE SCHEDULE FOR BACKUP TABLE foo, bar, buz INTO _ WITH revision_history RECURRING _ FULL BACKUP _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SCHEDULE FOR BACKUP TABLE _, _, _ INTO 'bar' WITH revision_history RECURRING '@daily' FULL BACKUP '@weekly' -- identifiers removed
 
 parse
@@ -52,4 +58,5 @@ CREATE SCHEDULE FOR BACKUP INTO 'bar' WITH revision_history RECURRING '@daily' F
 CREATE SCHEDULE FOR BACKUP INTO 'bar' WITH revision_history RECURRING '@daily' FULL BACKUP '@weekly' WITH SCHEDULE OPTIONS foo = 'bar'
 CREATE SCHEDULE FOR BACKUP INTO ('bar') WITH revision_history RECURRING ('@daily') FULL BACKUP ('@weekly') WITH SCHEDULE OPTIONS foo = ('bar') -- fully parenthetized
 CREATE SCHEDULE FOR BACKUP INTO _ WITH revision_history RECURRING _ FULL BACKUP _ WITH SCHEDULE OPTIONS foo = _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SCHEDULE FOR BACKUP INTO 'bar' WITH revision_history RECURRING '@daily' FULL BACKUP '@weekly' WITH SCHEDULE OPTIONS _ = 'bar' -- identifiers removed
diff --git a/pkg/sql/parser/testdata/parse/create_sequence b/pkg/sql/parser/testdata/parse/create_sequence
index 7e5830b68449..badfed87b6b5 100644
--- a/pkg/sql/parser/testdata/parse/create_sequence
+++ b/pkg/sql/parser/testdata/parse/create_sequence
@@ -44,6 +44,7 @@ CREATE SEQUENCE a CACHE 0
 CREATE SEQUENCE a CACHE 0
 CREATE SEQUENCE a CACHE 0 -- fully parenthetized
 CREATE SEQUENCE a CACHE _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ CACHE 0 -- identifiers removed
 
 parse
@@ -52,6 +53,7 @@ CREATE SEQUENCE a CACHE 1
 CREATE SEQUENCE a CACHE 1
 CREATE SEQUENCE a CACHE 1 -- fully parenthetized
 CREATE SEQUENCE a CACHE _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ CACHE 1 -- identifiers removed
 
 parse
@@ -60,6 +62,7 @@ CREATE SEQUENCE a CACHE 2
 CREATE SEQUENCE a CACHE 2
 CREATE SEQUENCE a CACHE 2 -- fully parenthetized
 CREATE SEQUENCE a CACHE _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ CACHE 2 -- identifiers removed
 
 parse
@@ -68,6 +71,7 @@ CREATE SEQUENCE a INCREMENT 5
 CREATE SEQUENCE a INCREMENT 5
 CREATE SEQUENCE a INCREMENT 5 -- fully parenthetized
 CREATE SEQUENCE a INCREMENT _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ INCREMENT 5 -- identifiers removed
 
 parse
@@ -76,6 +80,7 @@ CREATE SEQUENCE a INCREMENT BY 5
 CREATE SEQUENCE a INCREMENT BY 5
 CREATE SEQUENCE a INCREMENT BY 5 -- fully parenthetized
 CREATE SEQUENCE a INCREMENT BY _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ INCREMENT BY 5 -- identifiers removed
 
 parse
@@ -92,6 +97,7 @@ CREATE SEQUENCE a MAXVALUE 1000
 CREATE SEQUENCE a MAXVALUE 1000
 CREATE SEQUENCE a MAXVALUE 1000 -- fully parenthetized
 CREATE SEQUENCE a MAXVALUE _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ MAXVALUE 1000 -- identifiers removed
 
 parse
@@ -108,6 +114,7 @@ CREATE SEQUENCE a MINVALUE 1000
 CREATE SEQUENCE a MINVALUE 1000
 CREATE SEQUENCE a MINVALUE 1000 -- fully parenthetized
 CREATE SEQUENCE a MINVALUE _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ MINVALUE 1000 -- identifiers removed
 
 parse
@@ -116,6 +123,7 @@ CREATE SEQUENCE a START 1000
 CREATE SEQUENCE a START 1000
 CREATE SEQUENCE a START 1000 -- fully parenthetized
 CREATE SEQUENCE a START _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ START 1000 -- identifiers removed
 
 parse
@@ -124,6 +132,7 @@ CREATE SEQUENCE a START WITH 1000
 CREATE SEQUENCE a START WITH 1000
 CREATE SEQUENCE a START WITH 1000 -- fully parenthetized
 CREATE SEQUENCE a START WITH _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ START WITH 1000 -- identifiers removed
 
 parse
@@ -132,6 +141,7 @@ CREATE SEQUENCE a INCREMENT 5 NO MAXVALUE MINVALUE 1 START 3
 CREATE SEQUENCE a INCREMENT 5 NO MAXVALUE MINVALUE 1 START 3
 CREATE SEQUENCE a INCREMENT 5 NO MAXVALUE MINVALUE 1 START 3 -- fully parenthetized
 CREATE SEQUENCE a INCREMENT _ NO MAXVALUE MINVALUE _ START _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ INCREMENT 5 NO MAXVALUE MINVALUE 1 START 3 -- identifiers removed
 
 parse
@@ -140,6 +150,7 @@ CREATE SEQUENCE a INCREMENT 5 NO CYCLE NO MAXVALUE MINVALUE 1 START 3 CACHE 1
 CREATE SEQUENCE a INCREMENT 5 NO CYCLE NO MAXVALUE MINVALUE 1 START 3 CACHE 1
 CREATE SEQUENCE a INCREMENT 5 NO CYCLE NO MAXVALUE MINVALUE 1 START 3 CACHE 1 -- fully parenthetized
 CREATE SEQUENCE a INCREMENT _ NO CYCLE NO MAXVALUE MINVALUE _ START _ CACHE _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 CREATE SEQUENCE _ INCREMENT 5 NO CYCLE NO MAXVALUE MINVALUE 1 START 3 CACHE 1 -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/create_user b/pkg/sql/parser/testdata/parse/create_user
index 68ba87198a4f..d31355ac9c3f 100644
--- a/pkg/sql/parser/testdata/parse/create_user
+++ b/pkg/sql/parser/testdata/parse/create_user
@@ -4,6 +4,7 @@ CREATE USER foo
 CREATE USER 'foo' -- normalized!
 CREATE USER ('foo') -- fully parenthetized
 CREATE USER _ -- literals removed
+CREATE USER '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE USER 'foo' -- identifiers removed
 
 parse
@@ -12,6 +13,7 @@ CREATE USER IF NOT EXISTS foo
 CREATE USER IF NOT EXISTS 'foo' -- normalized!
 CREATE USER IF NOT EXISTS ('foo') -- fully parenthetized
 CREATE USER IF NOT EXISTS _ -- literals removed
+CREATE USER IF NOT EXISTS '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE USER IF NOT EXISTS 'foo' -- identifiers removed
 
 
@@ -21,6 +23,7 @@ CREATE ROLE foo
 CREATE ROLE 'foo' -- normalized!
 CREATE ROLE ('foo') -- fully parenthetized
 CREATE ROLE _ -- literals removed
+CREATE ROLE '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE 'foo' -- identifiers removed
 
 parse
@@ -29,6 +32,7 @@ CREATE ROLE IF NOT EXISTS foo
 CREATE ROLE IF NOT EXISTS 'foo' -- normalized!
 CREATE ROLE IF NOT EXISTS ('foo') -- fully parenthetized
 CREATE ROLE IF NOT EXISTS _ -- literals removed
+CREATE ROLE IF NOT EXISTS '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE IF NOT EXISTS 'foo' -- identifiers removed
 
 parse
@@ -37,6 +41,7 @@ CREATE ROLE foo WITH CREATEDB
 CREATE ROLE 'foo' WITH CREATEDB -- normalized!
 CREATE ROLE ('foo') WITH CREATEDB -- fully parenthetized
 CREATE ROLE _ WITH CREATEDB -- literals removed
+CREATE ROLE '_' WITH CREATEDB -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE 'foo' WITH CREATEDB -- identifiers removed
 
 parse
@@ -45,6 +50,7 @@ CREATE ROLE IF NOT EXISTS foo WITH CREATEDB
 CREATE ROLE IF NOT EXISTS 'foo' WITH CREATEDB -- normalized!
 CREATE ROLE IF NOT EXISTS ('foo') WITH CREATEDB -- fully parenthetized
 CREATE ROLE IF NOT EXISTS _ WITH CREATEDB -- literals removed
+CREATE ROLE IF NOT EXISTS '_' WITH CREATEDB -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE IF NOT EXISTS 'foo' WITH CREATEDB -- identifiers removed
 
 parse
@@ -53,6 +59,7 @@ CREATE ROLE foo CREATEDB
 CREATE ROLE 'foo' WITH CREATEDB -- normalized!
 CREATE ROLE ('foo') WITH CREATEDB -- fully parenthetized
 CREATE ROLE _ WITH CREATEDB -- literals removed
+CREATE ROLE '_' WITH CREATEDB -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE 'foo' WITH CREATEDB -- identifiers removed
 
 parse
@@ -61,6 +68,7 @@ CREATE ROLE IF NOT EXISTS foo CREATEDB
 CREATE ROLE IF NOT EXISTS 'foo' WITH CREATEDB -- normalized!
 CREATE ROLE IF NOT EXISTS ('foo') WITH CREATEDB -- fully parenthetized
 CREATE ROLE IF NOT EXISTS _ WITH CREATEDB -- literals removed
+CREATE ROLE IF NOT EXISTS '_' WITH CREATEDB -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE IF NOT EXISTS 'foo' WITH CREATEDB -- identifiers removed
 
 parse
@@ -69,6 +77,7 @@ CREATE ROLE foo WITH CREATEROLE
 CREATE ROLE 'foo' WITH CREATEROLE -- normalized!
 CREATE ROLE ('foo') WITH CREATEROLE -- fully parenthetized
 CREATE ROLE _ WITH CREATEROLE -- literals removed
+CREATE ROLE '_' WITH CREATEROLE -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE 'foo' WITH CREATEROLE -- identifiers removed
 
 parse
@@ -77,6 +86,7 @@ CREATE ROLE IF NOT EXISTS foo WITH CREATEROLE
 CREATE ROLE IF NOT EXISTS 'foo' WITH CREATEROLE -- normalized!
 CREATE ROLE IF NOT EXISTS ('foo') WITH CREATEROLE -- fully parenthetized
 CREATE ROLE IF NOT EXISTS _ WITH CREATEROLE -- literals removed
+CREATE ROLE IF NOT EXISTS '_' WITH CREATEROLE -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE IF NOT EXISTS 'foo' WITH CREATEROLE -- identifiers removed
 
 parse
@@ -85,6 +95,7 @@ CREATE ROLE foo CREATEROLE
 CREATE ROLE 'foo' WITH CREATEROLE -- normalized!
 CREATE ROLE ('foo') WITH CREATEROLE -- fully parenthetized
 CREATE ROLE _ WITH CREATEROLE -- literals removed
+CREATE ROLE '_' WITH CREATEROLE -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE 'foo' WITH CREATEROLE -- identifiers removed
 
 parse
@@ -93,6 +104,7 @@ CREATE ROLE IF NOT EXISTS foo CREATEROLE
 CREATE ROLE IF NOT EXISTS 'foo' WITH CREATEROLE -- normalized!
 CREATE ROLE IF NOT EXISTS ('foo') WITH CREATEROLE -- fully parenthetized
 CREATE ROLE IF NOT EXISTS _ WITH CREATEROLE -- literals removed
+CREATE ROLE IF NOT EXISTS '_' WITH CREATEROLE -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE ROLE IF NOT EXISTS 'foo' WITH CREATEROLE -- identifiers removed
 
 parse
@@ -101,6 +113,7 @@ CREATE USER foo PASSWORD bar
 CREATE USER 'foo' WITH PASSWORD '*****' -- normalized!
 CREATE USER ('foo') WITH PASSWORD '*****' -- fully parenthetized
 CREATE USER _ WITH PASSWORD '*****' -- literals removed
+CREATE USER '_' WITH PASSWORD '*****' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE USER 'foo' WITH PASSWORD '*****' -- identifiers removed
 CREATE USER 'foo' WITH PASSWORD 'bar' -- passwords exposed
 
@@ -110,6 +123,7 @@ CREATE USER foo PASSWORD NULL
 CREATE USER 'foo' WITH PASSWORD NULL -- normalized!
 CREATE USER ('foo') WITH PASSWORD (NULL) -- fully parenthetized
 CREATE USER _ WITH PASSWORD _ -- literals removed
+CREATE USER '_' WITH PASSWORD '*****' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE USER 'foo' WITH PASSWORD NULL -- identifiers removed
 
 parse
@@ -118,6 +132,7 @@ CREATE USER foo LOGIN VALID UNTIL NULL PASSWORD NULL
 CREATE USER 'foo' WITH LOGIN VALID UNTIL NULL PASSWORD NULL -- normalized!
 CREATE USER ('foo') WITH LOGIN VALID UNTIL (NULL) PASSWORD (NULL) -- fully parenthetized
 CREATE USER _ WITH LOGIN VALID UNTIL _ PASSWORD _ -- literals removed
+CREATE USER '_' WITH LOGIN VALID UNTIL '_' PASSWORD '*****' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE USER 'foo' WITH LOGIN VALID UNTIL NULL PASSWORD NULL -- identifiers removed
 
 parse
@@ -126,4 +141,5 @@ CREATE USER foo VALID UNTIL '1970-01-01'
 CREATE USER 'foo' WITH VALID UNTIL '1970-01-01' -- normalized!
 CREATE USER ('foo') WITH VALID UNTIL ('1970-01-01') -- fully parenthetized
 CREATE USER _ WITH VALID UNTIL _ -- literals removed
+CREATE USER '_' WITH VALID UNTIL '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 CREATE USER 'foo' WITH VALID UNTIL '1970-01-01' -- identifiers removed
diff --git a/pkg/sql/parser/testdata/parse/drop_user b/pkg/sql/parser/testdata/parse/drop_user
index 1204b0592ae2..2d30dcbfc1da 100644
--- a/pkg/sql/parser/testdata/parse/drop_user
+++ b/pkg/sql/parser/testdata/parse/drop_user
@@ -4,6 +4,7 @@ DROP USER foo, bar
 DROP USER 'foo', 'bar' -- normalized!
 DROP USER ('foo'), ('bar') -- fully parenthetized
 DROP USER _, _ -- literals removed
+DROP USER '_', '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 DROP USER 'foo', 'bar' -- identifiers removed
 
 parse
@@ -12,6 +13,7 @@ DROP USER IF EXISTS foo, bar
 DROP USER IF EXISTS 'foo', 'bar' -- normalized!
 DROP USER IF EXISTS ('foo'), ('bar') -- fully parenthetized
 DROP USER IF EXISTS _, _ -- literals removed
+DROP USER IF EXISTS '_', '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 DROP USER IF EXISTS 'foo', 'bar' -- identifiers removed
 
 parse
@@ -20,6 +22,7 @@ DROP ROLE foo, bar
 DROP ROLE 'foo', 'bar' -- normalized!
 DROP ROLE ('foo'), ('bar') -- fully parenthetized
 DROP ROLE _, _ -- literals removed
+DROP ROLE '_', '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 DROP ROLE 'foo', 'bar' -- identifiers removed
 
 parse
@@ -28,4 +31,5 @@ DROP ROLE IF EXISTS foo, bar
 DROP ROLE IF EXISTS 'foo', 'bar' -- normalized!
 DROP ROLE IF EXISTS ('foo'), ('bar') -- fully parenthetized
 DROP ROLE IF EXISTS _, _ -- literals removed
+DROP ROLE IF EXISTS '_', '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 DROP ROLE IF EXISTS 'foo', 'bar' -- identifiers removed
diff --git a/pkg/sql/parser/testdata/parse/import_export b/pkg/sql/parser/testdata/parse/import_export
index 24e779bb6c2f..9d5f0f851694 100644
--- a/pkg/sql/parser/testdata/parse/import_export
+++ b/pkg/sql/parser/testdata/parse/import_export
@@ -4,6 +4,7 @@ IMPORT TABLE foo CREATE USING 'nodelocal://0/some/file' CSV DATA ('path/to/some/
 IMPORT TABLE foo CREATE USING 'nodelocal://0/some/file' CSV DATA ('path/to/some/file', $1) WITH temp = 'path/to/temp'
 IMPORT TABLE foo CREATE USING ('nodelocal://0/some/file') CSV DATA (('path/to/some/file'), ($1)) WITH temp = ('path/to/temp') -- fully parenthetized
 IMPORT TABLE foo CREATE USING _ CSV DATA (_, $1) WITH temp = _ -- literals removed
+IMPORT TABLE foo CREATE USING '_' CSV DATA ('_', $1) WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT TABLE _ CREATE USING 'nodelocal://0/some/file' CSV DATA ('path/to/some/file', $1) WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -12,6 +13,7 @@ EXPLAIN IMPORT TABLE foo CREATE USING 'nodelocal://0/some/file' CSV DATA ('path/
 EXPLAIN IMPORT TABLE foo CREATE USING 'nodelocal://0/some/file' CSV DATA ('path/to/some/file', $1) WITH temp = 'path/to/temp'
 EXPLAIN IMPORT TABLE foo CREATE USING ('nodelocal://0/some/file') CSV DATA (('path/to/some/file'), ($1)) WITH temp = ('path/to/temp') -- fully parenthetized
 EXPLAIN IMPORT TABLE foo CREATE USING _ CSV DATA (_, $1) WITH temp = _ -- literals removed
+EXPLAIN IMPORT TABLE foo CREATE USING '_' CSV DATA ('_', $1) WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPLAIN IMPORT TABLE _ CREATE USING 'nodelocal://0/some/file' CSV DATA ('path/to/some/file', $1) WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -20,6 +22,7 @@ IMPORT TABLE foo CREATE USING 'nodelocal://0/some/file' DELIMITED DATA ('path/to
 IMPORT TABLE foo CREATE USING 'nodelocal://0/some/file' DELIMITED DATA ('path/to/some/file', $1)
 IMPORT TABLE foo CREATE USING ('nodelocal://0/some/file') DELIMITED DATA (('path/to/some/file'), ($1)) -- fully parenthetized
 IMPORT TABLE foo CREATE USING _ DELIMITED DATA (_, $1) -- literals removed
+IMPORT TABLE foo CREATE USING '_' DELIMITED DATA ('_', $1) -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT TABLE _ CREATE USING 'nodelocal://0/some/file' DELIMITED DATA ('path/to/some/file', $1) -- identifiers removed
 
 parse
@@ -28,6 +31,7 @@ IMPORT TABLE foo (id INT8 PRIMARY KEY, email STRING, age INT8) CSV DATA ('path/t
 IMPORT TABLE foo (id INT8 PRIMARY KEY, email STRING, age INT8) CSV DATA ('path/to/some/file', $1) WITH temp = 'path/to/temp'
 IMPORT TABLE foo (id INT8 PRIMARY KEY, email STRING, age INT8) CSV DATA (('path/to/some/file'), ($1)) WITH temp = ('path/to/temp') -- fully parenthetized
 IMPORT TABLE foo (id INT8 PRIMARY KEY, email STRING, age INT8) CSV DATA (_, $1) WITH temp = _ -- literals removed
+IMPORT TABLE foo (id INT8 PRIMARY KEY, email STRING, age INT8) CSV DATA ('_', $1) WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT TABLE _ (_ INT8 PRIMARY KEY, _ STRING, _ INT8) CSV DATA ('path/to/some/file', $1) WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -36,6 +40,7 @@ IMPORT TABLE foo (id INT8, email STRING, age INT8) CSV DATA ('path/to/some/file'
 IMPORT TABLE foo (id INT8, email STRING, age INT8) CSV DATA ('path/to/some/file', $1) WITH comma = ',', "nullif" = 'n/a', temp = $2
 IMPORT TABLE foo (id INT8, email STRING, age INT8) CSV DATA (('path/to/some/file'), ($1)) WITH comma = (','), "nullif" = ('n/a'), temp = ($2) -- fully parenthetized
 IMPORT TABLE foo (id INT8, email STRING, age INT8) CSV DATA (_, $1) WITH comma = _, "nullif" = _, temp = $2 -- literals removed
+IMPORT TABLE foo (id INT8, email STRING, age INT8) CSV DATA ('_', $1) WITH comma = '_', "nullif" = '_', temp = $2 -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT TABLE _ (_ INT8, _ STRING, _ INT8) CSV DATA ('path/to/some/file', $1) WITH _ = ',', _ = 'n/a', _ = $2 -- identifiers removed
 
 parse
@@ -44,6 +49,7 @@ IMPORT TABLE foo FROM PGDUMPCREATE 'nodelocal://0/foo/bar' WITH temp = 'path/to/
 IMPORT TABLE foo FROM PGDUMPCREATE 'nodelocal://0/foo/bar' WITH temp = 'path/to/temp'
 IMPORT TABLE foo FROM PGDUMPCREATE ('nodelocal://0/foo/bar') WITH temp = ('path/to/temp') -- fully parenthetized
 IMPORT TABLE foo FROM PGDUMPCREATE _ WITH temp = _ -- literals removed
+IMPORT TABLE foo FROM PGDUMPCREATE '_' WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT TABLE _ FROM PGDUMPCREATE 'nodelocal://0/foo/bar' WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -52,6 +58,7 @@ IMPORT TABLE foo FROM PGDUMPCREATE ('nodelocal://0/foo/bar') WITH temp = 'path/t
 IMPORT TABLE foo FROM PGDUMPCREATE 'nodelocal://0/foo/bar' WITH temp = 'path/to/temp' -- normalized!
 IMPORT TABLE foo FROM PGDUMPCREATE ('nodelocal://0/foo/bar') WITH temp = ('path/to/temp') -- fully parenthetized
 IMPORT TABLE foo FROM PGDUMPCREATE _ WITH temp = _ -- literals removed
+IMPORT TABLE foo FROM PGDUMPCREATE '_' WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT TABLE _ FROM PGDUMPCREATE 'nodelocal://0/foo/bar' WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -60,6 +67,7 @@ IMPORT INTO foo(id, email) CSV DATA ('path/to/some/file', $1) WITH temp = 'path/
 IMPORT INTO foo(id, email) CSV DATA ('path/to/some/file', $1) WITH temp = 'path/to/temp'
 IMPORT INTO foo(id, email) CSV DATA (('path/to/some/file'), ($1)) WITH temp = ('path/to/temp') -- fully parenthetized
 IMPORT INTO foo(id, email) CSV DATA (_, $1) WITH temp = _ -- literals removed
+IMPORT INTO foo(id, email) CSV DATA ('_', $1) WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT INTO _(_, _) CSV DATA ('path/to/some/file', $1) WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -68,6 +76,7 @@ IMPORT INTO foo CSV DATA ('path/to/some/file', $1) WITH temp = 'path/to/temp'
 IMPORT INTO foo CSV DATA ('path/to/some/file', $1) WITH temp = 'path/to/temp'
 IMPORT INTO foo CSV DATA (('path/to/some/file'), ($1)) WITH temp = ('path/to/temp') -- fully parenthetized
 IMPORT INTO foo CSV DATA (_, $1) WITH temp = _ -- literals removed
+IMPORT INTO foo CSV DATA ('_', $1) WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT INTO _ CSV DATA ('path/to/some/file', $1) WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -76,6 +85,7 @@ IMPORT TABLE a.foo (LIKE tab, col INT8 CONSTRAINT conname NULL NOT VISIBLE) CSV
 IMPORT TABLE a.foo (LIKE tab, col INT8 CONSTRAINT conname NULL NOT VISIBLE) CSV DATA ('placeholder')
 IMPORT TABLE a.foo (LIKE tab, col INT8 CONSTRAINT conname NULL NOT VISIBLE) CSV DATA (('placeholder')) -- fully parenthetized
 IMPORT TABLE a.foo (LIKE tab, col INT8 CONSTRAINT conname NULL NOT VISIBLE) CSV DATA (_) -- literals removed
+IMPORT TABLE a.foo (LIKE tab, col INT8 CONSTRAINT conname NULL NOT VISIBLE) CSV DATA ('_') -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT TABLE _._ (LIKE _, _ INT8 CONSTRAINT _ NULL NOT VISIBLE) CSV DATA ('placeholder') -- identifiers removed
 
 parse
@@ -84,6 +94,7 @@ IMPORT PGDUMP 'nodelocal://0/foo/bar' WITH temp = 'path/to/temp'
 IMPORT PGDUMP 'nodelocal://0/foo/bar' WITH temp = 'path/to/temp'
 IMPORT PGDUMP ('nodelocal://0/foo/bar') WITH temp = ('path/to/temp') -- fully parenthetized
 IMPORT PGDUMP _ WITH temp = _ -- literals removed
+IMPORT PGDUMP '_' WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT PGDUMP 'nodelocal://0/foo/bar' WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -92,6 +103,7 @@ EXPLAIN IMPORT PGDUMP 'nodelocal://0/foo/bar' WITH temp = 'path/to/temp'
 EXPLAIN IMPORT PGDUMP 'nodelocal://0/foo/bar' WITH temp = 'path/to/temp'
 EXPLAIN IMPORT PGDUMP ('nodelocal://0/foo/bar') WITH temp = ('path/to/temp') -- fully parenthetized
 EXPLAIN IMPORT PGDUMP _ WITH temp = _ -- literals removed
+EXPLAIN IMPORT PGDUMP '_' WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPLAIN IMPORT PGDUMP 'nodelocal://0/foo/bar' WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -100,6 +112,7 @@ IMPORT PGDUMP ('nodelocal://0/foo/bar') WITH temp = 'path/to/temp'
 IMPORT PGDUMP 'nodelocal://0/foo/bar' WITH temp = 'path/to/temp' -- normalized!
 IMPORT PGDUMP ('nodelocal://0/foo/bar') WITH temp = ('path/to/temp') -- fully parenthetized
 IMPORT PGDUMP _ WITH temp = _ -- literals removed
+IMPORT PGDUMP '_' WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 IMPORT PGDUMP 'nodelocal://0/foo/bar' WITH _ = 'path/to/temp' -- identifiers removed
 
 parse
@@ -108,6 +121,7 @@ EXPORT INTO CSV 'a' FROM TABLE a
 EXPORT INTO CSV 'a' FROM TABLE a
 EXPORT INTO CSV ('a') FROM TABLE a -- fully parenthetized
 EXPORT INTO CSV _ FROM TABLE a -- literals removed
+EXPORT INTO CSV '_' FROM TABLE a -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPORT INTO CSV 'a' FROM TABLE _ -- identifiers removed
 
 parse
@@ -116,6 +130,7 @@ EXPORT INTO CSV 'a' FROM SELECT * FROM a
 EXPORT INTO CSV 'a' FROM SELECT * FROM a
 EXPORT INTO CSV ('a') FROM SELECT (*) FROM a -- fully parenthetized
 EXPORT INTO CSV _ FROM SELECT * FROM a -- literals removed
+EXPORT INTO CSV '_' FROM SELECT * FROM a -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPORT INTO CSV 'a' FROM SELECT * FROM _ -- identifiers removed
 
 parse
@@ -124,6 +139,7 @@ EXPORT INTO CSV 's3://my/path/%part%.csv' WITH delimiter = '|' FROM TABLE a
 EXPORT INTO CSV 's3://my/path/%part%.csv' WITH delimiter = '|' FROM TABLE a
 EXPORT INTO CSV ('s3://my/path/%part%.csv') WITH delimiter = ('|') FROM TABLE a -- fully parenthetized
 EXPORT INTO CSV _ WITH delimiter = _ FROM TABLE a -- literals removed
+EXPORT INTO CSV '_' WITH delimiter = '_' FROM TABLE a -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPORT INTO CSV 's3://my/path/%part%.csv' WITH _ = '|' FROM TABLE _ -- identifiers removed
 
 parse
@@ -132,4 +148,5 @@ EXPORT INTO CSV 's3://my/path/%part%.csv' WITH delimiter = '|' FROM SELECT a, su
 EXPORT INTO CSV 's3://my/path/%part%.csv' WITH delimiter = '|' FROM SELECT a, sum(b) FROM c WHERE d = 1 ORDER BY sum(b) DESC LIMIT 10
 EXPORT INTO CSV ('s3://my/path/%part%.csv') WITH delimiter = ('|') FROM SELECT (a), ((sum)((b))) FROM c WHERE ((d) = (1)) ORDER BY ((sum)((b))) DESC LIMIT (10) -- fully parenthetized
 EXPORT INTO CSV _ WITH delimiter = _ FROM SELECT a, sum(b) FROM c WHERE d = _ ORDER BY sum(b) DESC LIMIT _ -- literals removed
+EXPORT INTO CSV '_' WITH delimiter = '_' FROM SELECT a, sum(b) FROM c WHERE d = _ ORDER BY sum(b) DESC LIMIT _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 EXPORT INTO CSV 's3://my/path/%part%.csv' WITH _ = '|' FROM SELECT _, sum(_) FROM _ WHERE _ = 1 ORDER BY sum(_) DESC LIMIT 10 -- identifiers removed
diff --git a/pkg/sql/parser/testdata/parse/prepared_stmts b/pkg/sql/parser/testdata/parse/prepared_stmts
index dbed40659b54..f5258a2ed50c 100644
--- a/pkg/sql/parser/testdata/parse/prepared_stmts
+++ b/pkg/sql/parser/testdata/parse/prepared_stmts
@@ -100,6 +100,7 @@ PREPARE a AS BACKUP DATABASE a TO 'b'
 PREPARE a AS BACKUP DATABASE a TO 'b'
 PREPARE a AS BACKUP DATABASE a TO ('b') -- fully parenthetized
 PREPARE a AS BACKUP DATABASE a TO _ -- literals removed
+PREPARE a AS BACKUP DATABASE a TO '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 PREPARE _ AS BACKUP DATABASE _ TO 'b' -- identifiers removed
 
 parse
@@ -116,6 +117,7 @@ PREPARE a AS RESTORE DATABASE a FROM 'b'
 PREPARE a AS RESTORE DATABASE a FROM 'b'
 PREPARE a AS RESTORE DATABASE a FROM ('b') -- fully parenthetized
 PREPARE a AS RESTORE DATABASE a FROM _ -- literals removed
+PREPARE a AS RESTORE DATABASE a FROM '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 PREPARE _ AS RESTORE DATABASE _ FROM 'b' -- identifiers removed
 
 parse
@@ -244,6 +246,7 @@ PREPARE a AS IMPORT TABLE a CREATE USING 'b' CSV DATA ('c') WITH temp = 'd'
 PREPARE a AS IMPORT TABLE a CREATE USING 'b' CSV DATA ('c') WITH temp = 'd'
 PREPARE a AS IMPORT TABLE a CREATE USING ('b') CSV DATA (('c')) WITH temp = ('d') -- fully parenthetized
 PREPARE a AS IMPORT TABLE a CREATE USING _ CSV DATA (_) WITH temp = _ -- literals removed
+PREPARE a AS IMPORT TABLE a CREATE USING '_' CSV DATA ('_') WITH temp = '_' -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 PREPARE _ AS IMPORT TABLE _ CREATE USING 'b' CSV DATA ('c') WITH _ = 'd' -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/select_clauses b/pkg/sql/parser/testdata/parse/select_clauses
index 55b84f73b81d..aa0104622eba 100644
--- a/pkg/sql/parser/testdata/parse/select_clauses
+++ b/pkg/sql/parser/testdata/parse/select_clauses
@@ -1016,6 +1016,7 @@ SELECT a FROM t WHERE a IS true
 SELECT a FROM t WHERE a IS true
 SELECT (a) FROM t WHERE ((a) IS (true)) -- fully parenthetized
 SELECT a FROM t WHERE a IS _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SELECT _ FROM _ WHERE _ IS true -- identifiers removed
 
 parse
@@ -1024,6 +1025,7 @@ SELECT a FROM t WHERE a IS NOT true
 SELECT a FROM t WHERE a IS NOT true
 SELECT (a) FROM t WHERE ((a) IS NOT (true)) -- fully parenthetized
 SELECT a FROM t WHERE a IS NOT _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SELECT _ FROM _ WHERE _ IS NOT true -- identifiers removed
 
 parse
@@ -1032,6 +1034,7 @@ SELECT a FROM t WHERE a IS false
 SELECT a FROM t WHERE a IS false
 SELECT (a) FROM t WHERE ((a) IS (false)) -- fully parenthetized
 SELECT a FROM t WHERE a IS _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SELECT _ FROM _ WHERE _ IS false -- identifiers removed
 
 parse
@@ -1040,6 +1043,7 @@ SELECT a FROM t WHERE a IS NOT false
 SELECT a FROM t WHERE a IS NOT false
 SELECT (a) FROM t WHERE ((a) IS NOT (false)) -- fully parenthetized
 SELECT a FROM t WHERE a IS NOT _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SELECT _ FROM _ WHERE _ IS NOT false -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/select_exprs b/pkg/sql/parser/testdata/parse/select_exprs
index 9f237ece8c3c..7aa6448bbed8 100644
--- a/pkg/sql/parser/testdata/parse/select_exprs
+++ b/pkg/sql/parser/testdata/parse/select_exprs
@@ -558,6 +558,7 @@ SELECT BOOL 'foo', 'foo'::BOOL
 SELECT BOOL 'foo', 'foo'::BOOL
 SELECT (BOOL ('foo')), (('foo')::BOOL) -- fully parenthetized
 SELECT BOOL _, _::BOOL -- literals removed
+SELECT bool AS _, _::BOOL -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT BOOL 'foo', 'foo'::BOOL -- identifiers removed
 
 parse
@@ -566,6 +567,7 @@ SELECT BIT '10', '10'::BIT
 SELECT BIT '10', '10'::BIT
 SELECT (BIT ('10')), (('10')::BIT) -- fully parenthetized
 SELECT BIT _, _::BIT -- literals removed
+SELECT "bit" AS _, _::BIT -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT BIT '10', '10'::BIT -- identifiers removed
 
 parse
@@ -574,6 +576,7 @@ SELECT VARBIT '1', '1'::VARBIT
 SELECT VARBIT '1', '1'::VARBIT
 SELECT (VARBIT ('1')), (('1')::VARBIT) -- fully parenthetized
 SELECT VARBIT _, _::VARBIT -- literals removed
+SELECT "varbit" AS _, _::VARBIT -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT VARBIT '1', '1'::VARBIT -- identifiers removed
 
 parse
@@ -582,6 +585,7 @@ SELECT INT2 'foo', 'foo'::INT2
 SELECT INT2 'foo', 'foo'::INT2
 SELECT (INT2 ('foo')), (('foo')::INT2) -- fully parenthetized
 SELECT INT2 _, _::INT2 -- literals removed
+SELECT int2 AS _, _::INT2 -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT INT2 'foo', 'foo'::INT2 -- identifiers removed
 
 parse
@@ -590,6 +594,7 @@ SELECT INT4 'foo', 'foo'::INT4
 SELECT INT4 'foo', 'foo'::INT4
 SELECT (INT4 ('foo')), (('foo')::INT4) -- fully parenthetized
 SELECT INT4 _, _::INT4 -- literals removed
+SELECT int4 AS _, _::INT4 -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT INT4 'foo', 'foo'::INT4 -- identifiers removed
 
 parse
@@ -598,6 +603,7 @@ SELECT INT8 'foo', 'foo'::INT8
 SELECT INT8 'foo', 'foo'::INT8
 SELECT (INT8 ('foo')), (('foo')::INT8) -- fully parenthetized
 SELECT INT8 _, _::INT8 -- literals removed
+SELECT int8 AS _, _::INT8 -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT INT8 'foo', 'foo'::INT8 -- identifiers removed
 
 parse
@@ -606,6 +612,7 @@ SELECT FLOAT4 'foo', 'foo'::FLOAT4
 SELECT FLOAT4 'foo', 'foo'::FLOAT4
 SELECT (FLOAT4 ('foo')), (('foo')::FLOAT4) -- fully parenthetized
 SELECT FLOAT4 _, _::FLOAT4 -- literals removed
+SELECT float4 AS _, _::FLOAT4 -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT FLOAT4 'foo', 'foo'::FLOAT4 -- identifiers removed
 
 parse
@@ -614,6 +621,7 @@ SELECT REAL 'foo'
 SELECT FLOAT4 'foo' -- normalized!
 SELECT (FLOAT4 ('foo')) -- fully parenthetized
 SELECT FLOAT4 _ -- literals removed
+SELECT float4 AS _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT FLOAT4 'foo' -- identifiers removed
 
 parse
@@ -622,6 +630,7 @@ SELECT DOUBLE PRECISION 'foo'
 SELECT FLOAT8 'foo' -- normalized!
 SELECT (FLOAT8 ('foo')) -- fully parenthetized
 SELECT FLOAT8 _ -- literals removed
+SELECT float8 AS _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT FLOAT8 'foo' -- identifiers removed
 
 
@@ -631,6 +640,7 @@ SELECT DECIMAL 'foo', 'foo'::DECIMAL
 SELECT DECIMAL 'foo', 'foo'::DECIMAL
 SELECT (DECIMAL ('foo')), (('foo')::DECIMAL) -- fully parenthetized
 SELECT DECIMAL _, _::DECIMAL -- literals removed
+SELECT "decimal" AS _, _::DECIMAL -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT DECIMAL 'foo', 'foo'::DECIMAL -- identifiers removed
 
 parse
@@ -639,6 +649,7 @@ SELECT NUMERIC 'foo'
 SELECT DECIMAL 'foo' -- normalized!
 SELECT (DECIMAL ('foo')) -- fully parenthetized
 SELECT DECIMAL _ -- literals removed
+SELECT "decimal" AS _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT DECIMAL 'foo' -- identifiers removed
 
 
@@ -648,6 +659,7 @@ SELECT CHAR 'foo', 'foo'::CHAR
 SELECT CHAR 'foo', 'foo'::CHAR
 SELECT (CHAR ('foo')), (('foo')::CHAR) -- fully parenthetized
 SELECT CHAR _, _::CHAR -- literals removed
+SELECT "char" AS _, _::CHAR -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT CHAR 'foo', 'foo'::CHAR -- identifiers removed
 
 parse
@@ -656,6 +668,7 @@ SELECT VARCHAR 'foo', 'foo'::VARCHAR
 SELECT VARCHAR 'foo', 'foo'::VARCHAR
 SELECT (VARCHAR ('foo')), (('foo')::VARCHAR) -- fully parenthetized
 SELECT VARCHAR _, _::VARCHAR -- literals removed
+SELECT "varchar" AS _, _::VARCHAR -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT VARCHAR 'foo', 'foo'::VARCHAR -- identifiers removed
 
 parse
@@ -664,6 +677,7 @@ SELECT STRING 'foo', 'foo'::STRING
 SELECT STRING 'foo', 'foo'::STRING
 SELECT (STRING ('foo')), (('foo')::STRING) -- fully parenthetized
 SELECT STRING _, _::STRING -- literals removed
+SELECT "string" AS _, _::STRING -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT STRING 'foo', 'foo'::STRING -- identifiers removed
 
 parse
@@ -672,6 +686,7 @@ SELECT BYTES 'foo', 'foo'::BYTES
 SELECT BYTES 'foo', 'foo'::BYTES
 SELECT (BYTES ('foo')), (('foo')::BYTES) -- fully parenthetized
 SELECT BYTES _, _::BYTES -- literals removed
+SELECT bytes AS _, _::BYTES -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT BYTES 'foo', 'foo'::BYTES -- identifiers removed
 
 parse
@@ -680,6 +695,7 @@ SELECT DATE 'foo', 'foo'::DATE
 SELECT DATE 'foo', 'foo'::DATE
 SELECT (DATE ('foo')), (('foo')::DATE) -- fully parenthetized
 SELECT DATE _, _::DATE -- literals removed
+SELECT date AS _, _::DATE -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT DATE 'foo', 'foo'::DATE -- identifiers removed
 
 parse
@@ -688,6 +704,7 @@ SELECT TIME 'foo', 'foo'::TIME
 SELECT TIME 'foo', 'foo'::TIME
 SELECT (TIME ('foo')), (('foo')::TIME) -- fully parenthetized
 SELECT TIME _, _::TIME -- literals removed
+SELECT "time" AS _, _::TIME -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT TIME 'foo', 'foo'::TIME -- identifiers removed
 
 parse
@@ -696,6 +713,7 @@ SELECT TIMESTAMP 'foo', 'foo'::TIMESTAMP
 SELECT TIMESTAMP 'foo', 'foo'::TIMESTAMP
 SELECT (TIMESTAMP ('foo')), (('foo')::TIMESTAMP) -- fully parenthetized
 SELECT TIMESTAMP _, _::TIMESTAMP -- literals removed
+SELECT "timestamp" AS _, _::TIMESTAMP -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT TIMESTAMP 'foo', 'foo'::TIMESTAMP -- identifiers removed
 
 parse
@@ -704,6 +722,7 @@ SELECT TIMESTAMPTZ 'foo', 'foo'::TIMESTAMPTZ
 SELECT TIMESTAMPTZ 'foo', 'foo'::TIMESTAMPTZ
 SELECT (TIMESTAMPTZ ('foo')), (('foo')::TIMESTAMPTZ) -- fully parenthetized
 SELECT TIMESTAMPTZ _, _::TIMESTAMPTZ -- literals removed
+SELECT "timestamptz" AS _, _::TIMESTAMPTZ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT TIMESTAMPTZ 'foo', 'foo'::TIMESTAMPTZ -- identifiers removed
 
 parse
@@ -712,6 +731,7 @@ SELECT TIMESTAMP WITHOUT TIME ZONE 'foo'
 SELECT TIMESTAMP 'foo' -- normalized!
 SELECT (TIMESTAMP ('foo')) -- fully parenthetized
 SELECT TIMESTAMP _ -- literals removed
+SELECT "timestamp" AS _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT TIMESTAMP 'foo' -- identifiers removed
 
 parse
@@ -752,6 +772,7 @@ SELECT TIMESTAMP(3) 'a'
 SELECT TIMESTAMP(3) 'a'
 SELECT (TIMESTAMP(3) ('a')) -- fully parenthetized
 SELECT TIMESTAMP(3) _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SELECT TIMESTAMP(3) 'a' -- identifiers removed
 
 parse
@@ -760,6 +781,7 @@ SELECT TIMESTAMPTZ(3) 'a'
 SELECT TIMESTAMPTZ(3) 'a'
 SELECT (TIMESTAMPTZ(3) ('a')) -- fully parenthetized
 SELECT TIMESTAMPTZ(3) _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SELECT TIMESTAMPTZ(3) 'a' -- identifiers removed
 
 
@@ -785,6 +807,7 @@ SELECT JSONB 'foo', 'foo'::JSONB
 SELECT JSONB 'foo', 'foo'::JSONB
 SELECT (JSONB ('foo')), (('foo')::JSONB) -- fully parenthetized
 SELECT JSONB _, _::JSONB -- literals removed
+SELECT jsonb AS _, _::JSONB -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT JSONB 'foo', 'foo'::JSONB -- identifiers removed
 
 parse
@@ -946,6 +969,7 @@ SELECT TIME(3) 'a'
 SELECT TIME(3) 'a'
 SELECT (TIME(3) ('a')) -- fully parenthetized
 SELECT TIME(3) _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SELECT TIME(3) 'a' -- identifiers removed
 
 parse
@@ -954,6 +978,7 @@ SELECT TIMETZ(3) 'a'
 SELECT TIMETZ(3) 'a'
 SELECT (TIMETZ(3) ('a')) -- fully parenthetized
 SELECT TIMETZ(3) _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SELECT TIMETZ(3) 'a' -- identifiers removed
 
 
@@ -1124,6 +1149,7 @@ SELECT INET '192.168.0.1'
 SELECT INET '192.168.0.1'
 SELECT (INET ('192.168.0.1')) -- fully parenthetized
 SELECT INET _ -- literals removed
+SELECT inet AS _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT INET '192.168.0.1' -- identifiers removed
 
 parse
@@ -1261,6 +1287,7 @@ SELECT SERIAL8 'foo', 'foo'::SERIAL8
 SELECT INT8 'foo', 'foo'::INT8 -- normalized!
 SELECT (INT8 ('foo')), (('foo')::INT8) -- fully parenthetized
 SELECT INT8 _, _::INT8 -- literals removed
+SELECT int8 AS _, _::INT8 -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT INT8 'foo', 'foo'::INT8 -- identifiers removed
 
 
diff --git a/pkg/sql/parser/testdata/parse/show b/pkg/sql/parser/testdata/parse/show
index cd90f1840836..8362424c56a0 100644
--- a/pkg/sql/parser/testdata/parse/show
+++ b/pkg/sql/parser/testdata/parse/show
@@ -1475,6 +1475,7 @@ SHOW SYNTAX 'select 1'
 SHOW SYNTAX 'select 1'
 SHOW SYNTAX 'select 1' -- fully parenthetized
 SHOW SYNTAX _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 SHOW SYNTAX _ -- identifiers removed
 
 parse
@@ -1483,6 +1484,7 @@ EXPLAIN SHOW SYNTAX 'select 1'
 EXPLAIN SHOW SYNTAX 'select 1'
 EXPLAIN SHOW SYNTAX 'select 1' -- fully parenthetized
 EXPLAIN SHOW SYNTAX _ -- literals removed
+REPARSE WITHOUT LITERALS FAILS: at or near "_": syntax error
 EXPLAIN SHOW SYNTAX _ -- identifiers removed
 
 parse
diff --git a/pkg/sql/parser/testdata/parse/user_defined_types b/pkg/sql/parser/testdata/parse/user_defined_types
index a28930f63334..d506ccb596a2 100644
--- a/pkg/sql/parser/testdata/parse/user_defined_types
+++ b/pkg/sql/parser/testdata/parse/user_defined_types
@@ -36,6 +36,7 @@ SELECT my.type ''
 SELECT my.type ''
 SELECT (my.type ('')) -- fully parenthetized
 SELECT my.type _ -- literals removed
+SELECT my.type AS _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT _._ '' -- identifiers removed
 
 parse
@@ -44,6 +45,7 @@ SELECT int4.type ''
 SELECT int4.type ''
 SELECT (int4.type ('')) -- fully parenthetized
 SELECT int4.type _ -- literals removed
+SELECT int4.type AS _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT _._ '' -- identifiers removed
 
 parse
@@ -52,6 +54,7 @@ SELECT foo ''
 SELECT foo ''
 SELECT (foo ('')) -- fully parenthetized
 SELECT foo _ -- literals removed
+SELECT foo AS _ -- UNEXPECTED REPARSED AST WITHOUT LITERALS
 SELECT _ '' -- identifiers removed
 
 parse