sql/parser: Added current_schema keyword support.

current_schema can be used as an alias for the current_schema() builtin. It is used by some applications like Keycloak.
benesch · Jul 7, 2017 · a696032 · a696032
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commit a696032
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diff --git a/pkg/sql/parser/keywords.go b/pkg/sql/parser/keywords.go
diff --git a/pkg/sql/parser/parse_test.go b/pkg/sql/parser/parse_test.go
@@ -805,6 +805,8 @@ func TestParse2(t *testing.T) {
 		{`SELECT a FROM t1 RIGHT OUTER JOIN t2 ON a = b`,
 			`SELECT a FROM t1 RIGHT JOIN t2 ON a = b`},
 		// Some functions are nearly keywords.
+		{`SELECT CURRENT_SCHEMA`,
+			`SELECT current_schema()`},
 		{`SELECT CURRENT_TIMESTAMP`,
 			`SELECT current_timestamp()`},
 		{`SELECT CURRENT_DATE`,

diff --git a/pkg/sql/parser/reserved_keywords.go b/pkg/sql/parser/reserved_keywords.go