cherry-pick from pingcap#7676

XuHuaiyu · Oct 11, 2018 · a758f75 · a758f75
1 parent 58b3e84
commit a758f75
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/expression/typeinfer_test.go b/expression/typeinfer_test.go
@@ -822,14 +822,14 @@ func (s *testInferTypeSuite) createTestCase4Aggregations() []typeInferTestCase {
 		{"sum(c_decimal)", mysql.TypeNewDecimal, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxDecimalWidth, 3},
 		{"sum(1.0)", mysql.TypeNewDecimal, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxDecimalWidth, 1},
 		{"sum(1.2e2)", mysql.TypeDouble, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxRealWidth, types.UnspecifiedLength},
-		{"sum(c_char)", mysql.TypeDouble, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxRealWidth, 0},
+		{"sum(c_char)", mysql.TypeDouble, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxRealWidth, types.UnspecifiedLength},
 		{"avg(c_int_d)", mysql.TypeNewDecimal, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxDecimalWidth, 4},
 		{"avg(c_float_d)", mysql.TypeDouble, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxRealWidth, types.UnspecifiedLength},
 		{"avg(c_double_d)", mysql.TypeDouble, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxRealWidth, types.UnspecifiedLength},
 		{"avg(c_decimal)", mysql.TypeNewDecimal, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxDecimalWidth, 7},
 		{"avg(1.0)", mysql.TypeNewDecimal, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxDecimalWidth, 5},
 		{"avg(1.2e2)", mysql.TypeDouble, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxRealWidth, types.UnspecifiedLength},
-		{"avg(c_char)", mysql.TypeDouble, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxRealWidth, 0},
+		{"avg(c_char)", mysql.TypeDouble, charset.CharsetBin, mysql.BinaryFlag, mysql.MaxRealWidth, types.UnspecifiedLength},
 		{"group_concat(c_int_d)", mysql.TypeVarString, charset.CharsetUTF8, 0, mysql.MaxBlobWidth, 0},
 	}
 }