[parser] *: Add format_bytes and format_nano_time function (pingcap#754)

* add Performance Schema Functions format_bytes and format_nano_time Signed-off-by: gauss <[email protected]> * remove a test case Signed-off-by: gauss <[email protected]> Co-authored-by: kennytm <[email protected]>
xhebox · Oct 8, 2021 · 64ca8e2 · 64ca8e2
1 parent 7606f36
commit 64ca8e2
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diff --git a/parser/ast/functions.go b/parser/ast/functions.go
@@ -248,6 +248,8 @@ const (
 	TiDBVersion    = "tidb_version"
 	TiDBIsDDLOwner = "tidb_is_ddl_owner"
 	TiDBDecodePlan = "tidb_decode_plan"
+	FormatBytes    = "format_bytes"
+	FormatNanoTime = "format_nano_time"
 
 	// control functions
 	If     = "if"

diff --git a/parser/parser_test.go b/parser/parser_test.go
@@ -1264,6 +1264,8 @@ func (s *testParserSuite) TestBuiltin(c *C) {
 		{"SELECT ROW_COUNT();", true, "SELECT ROW_COUNT()"},
 		{"SELECT SESSION_USER();", true, "SELECT SESSION_USER()"},
 		{"SELECT SYSTEM_USER();", true, "SELECT SYSTEM_USER()"},
+		{"SELECT FORMAT_BYTES(512);", true, "SELECT FORMAT_BYTES(512)"},
+		{"SELECT FORMAT_NANO_TIME(3501);", true, "SELECT FORMAT_NANO_TIME(3501)"},
 
 		{"SELECT SUBSTRING_INDEX('www.mysql.com', '.', 2);", true, "SELECT SUBSTRING_INDEX('www.mysql.com', '.', 2)"},
 		{"SELECT SUBSTRING_INDEX('www.mysql.com', '.', -2);", true, "SELECT SUBSTRING_INDEX('www.mysql.com', '.', -2)"},