A fix (bug #6999: Traditional: Wrong SQLSTATE returned for string truncation).

sql/share/errmsg.txt:
  A fix (bug #6999: Traditional: Wrong SQLSTATE returned for string truncation).
  ER_DATA_TOO_LONG (22001) has been added.

mysql-test/r/strict.result

@@ -814,14 +814,14 @@ DROP TABLE t1;
 CREATE TABLE t1 (col1 CHAR(5), col2 VARCHAR(6));
 INSERT INTO t1 VALUES ('hello', 'hello'),('he', 'he'),('hello   ', 'hello ');
 INSERT INTO t1 (col1) VALUES ('hellobob');
-ERROR 01000: Data truncated for column 'col1' at row 1
+ERROR 22001: Data too long for column 'col1' at row 1
 INSERT INTO t1 (col2) VALUES ('hellobob');
 ERROR 01000: Data truncated for column 'col2' at row 1
 INSERT INTO t1 (col2) VALUES ('hello  ');
 Warnings:
 Note	1265	Data truncated for column 'col2' at row 1
 UPDATE t1 SET col1 ='hellobob' WHERE col1 ='he';
-ERROR 01000: Data truncated for column 'col1' at row 2
+ERROR 22001: Data too long for column 'col1' at row 2
 UPDATE t1 SET col2 ='hellobob' WHERE col2 ='he';
 ERROR 01000: Data truncated for column 'col2' at row 2
 INSERT IGNORE INTO t1 VALUES ('hellobob', 'hellobob');

mysql-test/t/strict.test

@@ -565,12 +565,12 @@ DROP TABLE t1;
 
 CREATE TABLE t1 (col1 CHAR(5), col2 VARCHAR(6));
 INSERT INTO t1 VALUES ('hello', 'hello'),('he', 'he'),('hello   ', 'hello ');
---error 1265
+--error 1400
 INSERT INTO t1 (col1) VALUES ('hellobob');
 --error 1265
 INSERT INTO t1 (col2) VALUES ('hellobob');
 INSERT INTO t1 (col2) VALUES ('hello  ');
---error 1265
+--error 1400
 UPDATE t1 SET col1 ='hellobob' WHERE col1 ='he';
 --error 1265
 UPDATE t1 SET col2 ='hellobob' WHERE col2 ='he';

sql/field.cc

@@ -4368,8 +4368,12 @@ int Field_string::store(const char *from,uint length,CHARSET_INFO *cs)
       error= 1;
   }
   if (error)
-    set_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
-
+  {
+    if (table->in_use->abort_on_warning)
+      set_warning(MYSQL_ERROR::WARN_LEVEL_ERROR, ER_DATA_TOO_LONG, 1);
+    else
+      set_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
+  }
   return error;
 }
 

sql/share/errmsg.txt

@@ -5210,3 +5210,5 @@ ER_PROC_AUTO_GRANT_FAIL
 	eng "Failed to grant EXECUTE and ALTER ROUTINE privileges"
 ER_PROC_AUTO_REVOKE_FAIL
 	eng "Failed to revoke all privileges to dropped routine"
+ER_DATA_TOO_LONG 22001
+	eng "Data too long for column '%s' at row %ld"