util/charset: Add utf8mb4 as alias for utf8 (#7339) (#8048)

pingcap · Oct 25, 2018 · 587ff8c · 587ff8c
1 parent 4c86815
commit 587ff8c
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/expression/integration_test.go b/expression/integration_test.go
@@ -871,8 +871,8 @@ func (s *testIntegrationSuite) TestStringBuiltin(c *C) {
 	result.Check(testkit.Rows("'121' '0' '中文' <nil>"))
 
 	// for convert
-	result = tk.MustQuery(`select convert("123" using "866"), convert("123" using "binary"), convert("中文" using "binary"), convert("中文" using "utf8"), convert(cast("中文" as binary) using "utf8");`)
-	result.Check(testkit.Rows("123 123 中文 中文 中文"))
+	result = tk.MustQuery(`select convert("123" using "866"), convert("123" using "binary"), convert("中文" using "binary"), convert("中文" using "utf8"), convert("中文" using "utf8mb4"), convert(cast("中文" as binary) using "utf8");`)
+	result.Check(testkit.Rows("123 123 中文 中文 中文 中文"))
 
 	// for insert
 	result = tk.MustQuery(`select insert("中文", 1, 1, cast("aaa" as binary)), insert("ba", -1, 1, "aaa"), insert("ba", 1, 100, "aaa"), insert("ba", 100, 1, "aaa");`)

diff --git a/util/charset/encoding_table.go b/util/charset/encoding_table.go
@@ -42,6 +42,7 @@ var encodings = map[string]struct {
 	"unicode-1-1-utf-8":   {encoding.Nop, "utf-8"},
 	"utf-8":               {encoding.Nop, "utf-8"},
 	"utf8":                {encoding.Nop, "utf-8"},
+	"utf8mb4":             {encoding.Nop, "utf-8"},
 	"binary":              {encoding.Nop, "binary"},
 	"866":                 {charmap.CodePage866, "ibm866"},
 	"cp866":               {charmap.CodePage866, "ibm866"},