executor: fix warning message for insert ignore with binary type (#59844)

close #31639

Author: Defined2014

pkg/executor/batch_checker.go

@@ -16,6 +16,7 @@ package executor
 
 import (
 	"context"
+	"strings"
 
 	"github.com/pingcap/errors"
 	"github.com/pingcap/tidb/pkg/errno"
@@ -29,6 +30,7 @@ import (
 	"github.com/pingcap/tidb/pkg/table/tables"
 	"github.com/pingcap/tidb/pkg/tablecodec"
 	"github.com/pingcap/tidb/pkg/types"
+	"github.com/pingcap/tidb/pkg/util"
 	"github.com/pingcap/tidb/pkg/util/chunk"
 	"github.com/pingcap/tidb/pkg/util/codec"
 	"github.com/pingcap/tidb/pkg/util/logutil"
@@ -265,6 +267,17 @@ func dataToStrings(data []types.Datum) ([]string, error) {
 		if err != nil {
 			return nil, errors.Trace(err)
 		}
+		if datum.Kind() == types.KindBytes || datum.Kind() == types.KindMysqlBit || datum.Kind() == types.KindBinaryLiteral {
+			// Same as MySQL, remove all 0x00 on the tail,
+			// but keep one 0x00 at least.
+			if datum.Kind() == types.KindBytes {
+				str = strings.TrimRight(str, string(rune(0x00)))
+				if len(str) == 0 {
+					str = string(rune(0x00))
+				}
+			}
+			str = util.FmtNonASCIIPrintableCharToHex(str, len(str), true)
+		}
 		strs = append(strs, str)
 	}
 	return strs, nil

tests/integrationtest/r/executor/insert.result

@@ -2183,3 +2183,42 @@ id	col1
 4	
 5	
 6	
+drop table if exists t1;
+create table t1 (id binary(20) unique);
+INSERT IGNORE INTO t1 VALUES (X'0e6b4234fd0b08d4c4ec656529d94df02b37c472');
+INSERT IGNORE INTO t1 VALUES (X'0e6b4234fd0b08d4c4ec656529d94df02b37c472');
+show warnings;
+Level	Code	Message
+Warning	1062	Duplicate entry '\x0EkB4\xFD\x0B\x08\xD4\xC4\xECee)\xD9M\xF0+7\xC4r' for key 't1.id'
+INSERT IGNORE INTO t1 VALUES (X'');
+INSERT IGNORE INTO t1 VALUES (X'');
+show warnings;
+Level	Code	Message
+Warning	1062	Duplicate entry '\x00' for key 't1.id'
+INSERT IGNORE INTO t1 VALUES (X'7f000000');
+INSERT IGNORE INTO t1 VALUES (X'7f000000');
+show warnings;
+Level	Code	Message
+Warning	1062	Duplicate entry '\x7F' for key 't1.id'
+drop table if exists t1;
+create table t1 (id bit(20) unique);
+INSERT IGNORE INTO t1 VALUES (10);
+INSERT IGNORE INTO t1 VALUES (10);
+show warnings;
+Level	Code	Message
+Warning	1062	Duplicate entry '\x00\x00\x0A' for key 't1.id'
+INSERT IGNORE INTO t1 VALUES (65536);
+INSERT IGNORE INTO t1 VALUES (65536);
+show warnings;
+Level	Code	Message
+Warning	1062	Duplicate entry '\x01\x00\x00' for key 't1.id'
+INSERT IGNORE INTO t1 VALUES (35);
+INSERT IGNORE INTO t1 VALUES (35);
+show warnings;
+Level	Code	Message
+Warning	1062	Duplicate entry '\x00\x00#' for key 't1.id'
+INSERT IGNORE INTO t1 VALUES (127);
+INSERT IGNORE INTO t1 VALUES (127);
+show warnings;
+Level	Code	Message
+Warning	1062	Duplicate entry '\x00\x00\x7F' for key 't1.id'

tests/integrationtest/t/executor/insert.test

@@ -1649,3 +1649,32 @@ update t1 set col1 = null where id = 3;
 show warnings;
 insert ignore t1 VALUES (4, 4) ON DUPLICATE KEY UPDATE col1 = null;
 select * from t1;
+
+# TestIssue31639
+drop table if exists t1;
+create table t1 (id binary(20) unique);
+INSERT IGNORE INTO t1 VALUES (X'0e6b4234fd0b08d4c4ec656529d94df02b37c472');
+INSERT IGNORE INTO t1 VALUES (X'0e6b4234fd0b08d4c4ec656529d94df02b37c472');
+show warnings;
+INSERT IGNORE INTO t1 VALUES (X'');
+INSERT IGNORE INTO t1 VALUES (X'');
+show warnings;
+INSERT IGNORE INTO t1 VALUES (X'7f000000');
+INSERT IGNORE INTO t1 VALUES (X'7f000000');
+show warnings;
+
+drop table if exists t1;
+create table t1 (id bit(20) unique);
+INSERT IGNORE INTO t1 VALUES (10);
+INSERT IGNORE INTO t1 VALUES (10);
+show warnings;
+INSERT IGNORE INTO t1 VALUES (65536);
+INSERT IGNORE INTO t1 VALUES (65536);
+show warnings;
+INSERT IGNORE INTO t1 VALUES (35);
+INSERT IGNORE INTO t1 VALUES (35);
+show warnings;
+INSERT IGNORE INTO t1 VALUES (127);
+INSERT IGNORE INTO t1 VALUES (127);
+show warnings;
+