expression: fix date format identifies '\n' as invalid separator (#32… (#32391)

* expression: fix date format identifies '\n' as invalid separator (#32358)

types/time.go

@@ -786,7 +786,8 @@ func isValidSeparator(c byte, prevParts int) bool {
 		return true
 	}
 
-	if prevParts == 2 && (c == ' ' || c == 'T') {
+	// for https://github.com/pingcap/tidb/issues/32232
+	if prevParts == 2 && (c == 'T' || c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r') {
 		return true
 	}
 

types/time_test.go

@@ -1077,6 +1077,11 @@ func (s *testTimeSuite) TestParseDateFormat(c *C) {
 		{"T10:10:10", nil},
 		{"2011-11-11x", []string{"2011", "11", "11x"}},
 		{"xxx 10:10:10", nil},
+		{"2022-02-01\n16:33:00", []string{"2022", "02", "01", "16", "33", "00"}},
+		{"2022-02-01\f16:33:00", []string{"2022", "02", "01", "16", "33", "00"}},
+		{"2022-02-01\v16:33:00", []string{"2022", "02", "01", "16", "33", "00"}},
+		{"2022-02-01\r16:33:00", []string{"2022", "02", "01", "16", "33", "00"}},
+		{"2022-02-01\t16:33:00", []string{"2022", "02", "01", "16", "33", "00"}},
 	}
 
 	for _, t := range tbl {

util/stmtsummary/statement_summary.go

@@ -980,9 +980,9 @@ func (ssElement *stmtSummaryByDigestElement) toDatum(ssbd *stmtSummaryByDigest)
 		avgInt(int64(ssElement.sumPDTotal), ssElement.commitCount),
 		avgInt(int64(ssElement.sumBackoffTotal), ssElement.commitCount),
 		avgInt(int64(ssElement.sumWriteSQLRespTotal), ssElement.commitCount),
-		int64(ssElement.maxResultRows),
-		int64(ssElement.minResultRows),
-		avgInt(int64(ssElement.sumResultRows), ssElement.execCount),
+		ssElement.maxResultRows,
+		ssElement.minResultRows,
+		avgInt(ssElement.sumResultRows, ssElement.execCount),
 		ssElement.prepared,
 		avgFloat(int64(ssElement.sumAffectedRows), ssElement.execCount),
 		types.NewTime(types.FromGoTime(ssElement.firstSeen), mysql.TypeTimestamp, 0),