Merge tulin@bk-internal.mysql.com:/home/bk/mysql-5.0

into dl145b.mysql.com:/home/ndbdev/tomas/mysql-5.1


storage/ndb/test/include/UtilTransactions.hpp:
  Auto merged
storage/ndb/test/src/HugoOperations.cpp:
  Auto merged
storage/ndb/test/src/UtilTransactions.cpp:
  Auto merged

mysql-test/include/have_gbk.inc

@@ -0,0 +1,4 @@
+-- require r/have_gbk.require
+disable_query_log;
+show collation like "gbk_chinese_ci";
+enable_query_log;

mysql-test/r/ctype_gbk.result

@@ -0,0 +1,131 @@
+drop table if exists t1;
+SET @test_character_set= 'gbk';
+SET @test_collation= 'gbk_chinese_ci';
+SET @safe_character_set_server= @@character_set_server;
+SET @safe_collation_server= @@collation_server;
+SET character_set_server= @test_character_set;
+SET collation_server= @test_collation;
+CREATE DATABASE d1;
+USE d1;
+CREATE TABLE t1 (c CHAR(10), KEY(c));
+SHOW FULL COLUMNS FROM t1;
+Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
+c	char(10)	gbk_chinese_ci	YES	MUL	NULL			
+INSERT INTO t1 VALUES ('aaa'),('aaaa'),('aaaaa');
+SELECT c as want3results FROM t1 WHERE c LIKE 'aaa%';
+want3results
+aaa
+aaaa
+aaaaa
+DROP TABLE t1;
+CREATE TABLE t1 (c1 varchar(15), KEY c1 (c1(2)));
+SHOW FULL COLUMNS FROM t1;
+Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
+c1	varchar(15)	gbk_chinese_ci	YES	MUL	NULL			
+INSERT INTO t1 VALUES ('location'),('loberge'),('lotre'),('boabab');
+SELECT c1 as want3results from t1 where c1 like 'l%';
+want3results
+location
+loberge
+lotre
+SELECT c1 as want3results from t1 where c1 like 'lo%';
+want3results
+location
+loberge
+lotre
+SELECT c1 as want1result  from t1 where c1 like 'loc%';
+want1result
+location
+SELECT c1 as want1result  from t1 where c1 like 'loca%';
+want1result
+location
+SELECT c1 as want1result  from t1 where c1 like 'locat%';
+want1result
+location
+SELECT c1 as want1result  from t1 where c1 like 'locati%';
+want1result
+location
+SELECT c1 as want1result  from t1 where c1 like 'locatio%';
+want1result
+location
+SELECT c1 as want1result  from t1 where c1 like 'location%';
+want1result
+location
+DROP TABLE t1;
+DROP DATABASE d1;
+USE test;
+SET character_set_server= @safe_character_set_server;
+SET collation_server= @safe_collation_server;
+SET NAMES gbk;
+SET collation_connection='gbk_chinese_ci';
+create table t1 select repeat('a',4000) a;
+delete from t1;
+insert into t1 values ('a'), ('a '), ('a\t');
+select collation(a),hex(a) from t1 order by a;
+collation(a)	hex(a)
+gbk_chinese_ci	6109
+gbk_chinese_ci	61
+gbk_chinese_ci	6120
+drop table t1;
+create table t1 engine=innodb select repeat('a',50) as c1;
+alter table t1 add index(c1(5));
+insert into t1 values ('abcdefg'),('abcde100'),('abcde110'),('abcde111');
+select collation(c1) from t1 limit 1;
+collation(c1)
+gbk_chinese_ci
+select c1 from t1 where c1 like 'abcdef%' order by c1;
+c1
+abcdefg
+select c1 from t1 where c1 like 'abcde1%' order by c1;
+c1
+abcde100
+abcde110
+abcde111
+select c1 from t1 where c1 like 'abcde11%' order by c1;
+c1
+abcde110
+abcde111
+select c1 from t1 where c1 like 'abcde111%' order by c1;
+c1
+abcde111
+drop table t1;
+SET collation_connection='gbk_bin';
+create table t1 select repeat('a',4000) a;
+delete from t1;
+insert into t1 values ('a'), ('a '), ('a\t');
+select collation(a),hex(a) from t1 order by a;
+collation(a)	hex(a)
+gbk_bin	6109
+gbk_bin	61
+gbk_bin	6120
+drop table t1;
+create table t1 engine=innodb select repeat('a',50) as c1;
+alter table t1 add index(c1(5));
+insert into t1 values ('abcdefg'),('abcde100'),('abcde110'),('abcde111');
+select collation(c1) from t1 limit 1;
+collation(c1)
+gbk_bin
+select c1 from t1 where c1 like 'abcdef%' order by c1;
+c1
+abcdefg
+select c1 from t1 where c1 like 'abcde1%' order by c1;
+c1
+abcde100
+abcde110
+abcde111
+select c1 from t1 where c1 like 'abcde11%' order by c1;
+c1
+abcde110
+abcde111
+select c1 from t1 where c1 like 'abcde111%' order by c1;
+c1
+abcde111
+drop table t1;
+SET NAMES gbk;
+CREATE TABLE t1 (a text) character set gbk;
+INSERT INTO t1 VALUES (0xA3A0),(0xA1A1);
+SELECT hex(a) FROM t1 ORDER BY a;
+hex(a)
+A1A1
+A3A0
+DROP TABLE t1;

mysql-test/r/have_gbk.require

@@ -0,0 +1,2 @@
+Collation	Charset	Id	Default	Compiled	Sortlen
+gbk_chinese_ci	gbk	28	Yes	Yes	1

mysql-test/t/ctype_gbk.test

@@ -0,0 +1,30 @@
+-- source include/have_gbk.inc
+
+#
+# Tests with the gbk character set
+#
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+SET @test_character_set= 'gbk';
+SET @test_collation= 'gbk_chinese_ci';
+-- source include/ctype_common.inc
+
+SET NAMES gbk;
+SET collation_connection='gbk_chinese_ci';
+-- source include/ctype_filesort.inc
+-- source include/ctype_innodb_like.inc
+SET collation_connection='gbk_bin';
+-- source include/ctype_filesort.inc
+-- source include/ctype_innodb_like.inc
+
+#
+# Bug#11987 mysql will truncate the text when
+# the text contain GBK char:"0xA3A0" and "0xA1"
+#
+SET NAMES gbk;
+CREATE TABLE t1 (a text) character set gbk;
+INSERT INTO t1 VALUES (0xA3A0),(0xA1A1);
+SELECT hex(a) FROM t1 ORDER BY a;
+DROP TABLE t1;

storage/ndb/test/include/UtilTransactions.hpp

@@ -28,6 +28,8 @@ public:
   UtilTransactions(Ndb* ndb, 
 		   const char * tableName, const char * indexName = 0);
   
+  int closeTransaction(Ndb*);
+  
   int clearTable(Ndb*, 
 		 int records = 0,
 		 int parallelism = 0);

storage/ndb/test/src/HugoOperations.cpp

@@ -53,11 +53,7 @@ HugoOperations::setTransactionId(Uint64 id){
 
 int HugoOperations::closeTransaction(Ndb* pNdb){
 
-  if (pTrans != NULL){
+  UtilTransactions::closeTransaction(pNdb);
-    pNdb->closeTransaction(pTrans);
-    pTrans = NULL;
-  }
-  pTrans = NULL;
 
   m_result_sets.clear();
   m_executed_result_sets.clear();

storage/ndb/test/src/UtilTransactions.cpp

@@ -109,7 +109,7 @@ UtilTransactions::clearTable3(Ndb* pNdb,
       err = pTrans->getNdbError();
       if(err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	par = 1;
 	goto restart;
@@ -126,7 +126,7 @@ UtilTransactions::clearTable3(Ndb* pNdb,
       err = pTrans->getNdbError();    
       if(err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	continue;
       }
@@ -150,7 +150,7 @@ UtilTransactions::clearTable3(Ndb* pNdb,
       if(check == -1){
 	if(err.status == NdbError::TemporaryError){
 	  ERR(err);
-	  pNdb->closeTransaction(pTrans);
+	  closeTransaction(pNdb);
 	  NdbSleep_MilliSleep(50);
 	  par = 1;
 	  goto restart;
@@ -162,20 +162,20 @@ UtilTransactions::clearTable3(Ndb* pNdb,
       err = pTrans->getNdbError();    
       if(err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	par = 1;
 	goto restart;
       }
       goto failed;
     }
-    pNdb->closeTransaction(pTrans);
+    closeTransaction(pNdb);
     return NDBT_OK;
   }
   return NDBT_FAILED;
   
  failed:
-  if(pTrans != 0) pNdb->closeTransaction(pTrans);
+  closeTransaction(pNdb);
   ERR(err);
   return (err.code != 0 ? err.code : NDBT_FAILED);
 }
@@ -219,20 +219,20 @@ UtilTransactions::copyTableData(Ndb* pNdb,
     pOp = pTrans->getNdbScanOperation(tab.getName());	
     if (pOp == NULL) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
     if( pOp->readTuples(NdbScanOperation::LM_Read, parallelism) ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
     check = pOp->interpret_exit_ok();
     if( check == -1 ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }  
 
@@ -241,7 +241,7 @@ UtilTransactions::copyTableData(Ndb* pNdb,
       if ((row.attributeStore(a) =  
 	   pOp->getValue(tab.getColumn(a)->getName())) == 0) {
 	ERR(pTrans->getNdbError());
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	return NDBT_FAILED;
       }
     }
@@ -249,7 +249,7 @@ UtilTransactions::copyTableData(Ndb* pNdb,
     check = pTrans->execute(NoCommit);
     if( check == -1 ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
   
@@ -258,7 +258,7 @@ UtilTransactions::copyTableData(Ndb* pNdb,
       do {
 	insertedRows++;
 	if (addRowToInsert(pNdb, pTrans, row, destName) != 0){
-	  pNdb->closeTransaction(pTrans);
+	  closeTransaction(pNdb);
 	  return NDBT_FAILED;
 	}
       } while((eof = pOp->nextResult(false)) == 0);
@@ -268,7 +268,7 @@ UtilTransactions::copyTableData(Ndb* pNdb,
       if( check == -1 ) {
 	const NdbError err = pTrans->getNdbError();    
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	return NDBT_FAILED;
       }
     }  
@@ -277,7 +277,7 @@ UtilTransactions::copyTableData(Ndb* pNdb,
       
       if (err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	// If error = 488 there should be no limit on number of retry attempts
 	if (err.code != 488) 
@@ -285,11 +285,11 @@ UtilTransactions::copyTableData(Ndb* pNdb,
 	continue;
       }
       ERR(err);
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
     
-    pNdb->closeTransaction(pTrans);
+    closeTransaction(pNdb);
     
     g_info << insertedRows << " rows copied" << endl;
     
@@ -375,7 +375,7 @@ UtilTransactions::scanReadRecords(Ndb* pNdb,
     pOp = getScanOperation(pTrans);
     if (pOp == NULL) {
       const NdbError err = pNdb->getNdbError();
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
 
       if (err.status == NdbError::TemporaryError){
 	ERR(err);
@@ -389,14 +389,14 @@ UtilTransactions::scanReadRecords(Ndb* pNdb,
 
     if( pOp->readTuples(lm, 0, parallelism) ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
     check = pOp->interpret_exit_ok();
     if( check == -1 ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
     
@@ -408,7 +408,7 @@ UtilTransactions::scanReadRecords(Ndb* pNdb,
 	if ((row.attributeStore(attrib_list[a]) =  
 	     pOp->getValue(tab.getColumn(attrib_list[a])->getName())) == 0) {
 	  ERR(pTrans->getNdbError());
-	  pNdb->closeTransaction(pTrans);
+	  closeTransaction(pNdb);
 	  return NDBT_FAILED;
 	}
       }
@@ -421,13 +421,13 @@ UtilTransactions::scanReadRecords(Ndb* pNdb,
 
       if (err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	retryAttempt++;
 	continue;
       }
       ERR(err);
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
     
@@ -447,17 +447,17 @@ UtilTransactions::scanReadRecords(Ndb* pNdb,
       
       if (err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	retryAttempt++;
 	continue;
       }
       ERR(err);
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
     
-    pNdb->closeTransaction(pTrans);
+    closeTransaction(pNdb);
     g_info << rows << " rows have been read" << endl;
     if (records != 0 && rows != records){
       g_info << "Check expected number of records failed" << endl 
@@ -496,13 +496,13 @@ UtilTransactions::selectCount(Ndb* pNdb,
     pOp = getScanOperation(pTrans);
     if (pOp == NULL) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
     if( pOp->readTuples(lm) ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
@@ -515,7 +515,7 @@ UtilTransactions::selectCount(Ndb* pNdb,
       check = pOp->interpret_exit_ok();
       if( check == -1 ) {
 	ERR(pTrans->getNdbError());
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	return NDBT_FAILED;
       }
     }
@@ -524,7 +524,7 @@ UtilTransactions::selectCount(Ndb* pNdb,
     check = pTrans->execute(NoCommit);
     if( check == -1 ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
@@ -539,17 +539,17 @@ UtilTransactions::selectCount(Ndb* pNdb,
       const NdbError err = pTrans->getNdbError();
       
       if (err.status == NdbError::TemporaryError){
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	retryAttempt++;
 	continue;
       }
       ERR(err);
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
     
-    pNdb->closeTransaction(pTrans);
+    closeTransaction(pNdb);
     
     if (count_rows != NULL){
       *count_rows = rows;
@@ -653,7 +653,7 @@ restart:
     pOp = pTrans->getNdbScanOperation(tab.getName());	
     if (pOp == NULL) {
       const NdbError err = pNdb->getNdbError();
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       ERR(err);
       
       if (err.status == NdbError::TemporaryError){
@@ -673,14 +673,14 @@ restart:
     
     if( rs != 0 ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
     check = pOp->interpret_exit_ok();
     if( check == -1 ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
@@ -689,7 +689,7 @@ restart:
       if ((row.attributeStore(a) =  
 	   pOp->getValue(tab.getColumn(a)->getName())) == 0) {
 	ERR(pTrans->getNdbError());
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	return NDBT_FAILED;
       }
     }
@@ -700,13 +700,13 @@ restart:
       
       if (err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	retryAttempt++;
 	continue;
       }
       ERR(err);
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
     
@@ -733,13 +733,13 @@ restart:
 	  
 	  if (err.status == NdbError::TemporaryError){
 	    ERR(err);
-	    pNdb->closeTransaction(pTrans);
+	    closeTransaction(pNdb);
 	    NdbSleep_MilliSleep(50);
 	    retryAttempt++;
 	    goto restart;
 	  }
 	}
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	return NDBT_FAILED;
       }
     }
@@ -748,17 +748,17 @@ restart:
       
       if (err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	retryAttempt++;
 	continue;
       }
       ERR(err);
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
     
-    pNdb->closeTransaction(pTrans);
+    closeTransaction(pNdb);
     
     return NDBT_OK;
   }
@@ -1057,20 +1057,20 @@ UtilTransactions::verifyOrderedIndex(Ndb* pNdb,
     pOp = pTrans->getNdbScanOperation(tab.getName());	
     if (pOp == NULL) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
     if( pOp->readTuples(NdbScanOperation::LM_Read, 0, parallelism) ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
     check = pOp->interpret_exit_ok();
     if( check == -1 ) {
       ERR(pTrans->getNdbError());
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
 
@@ -1085,13 +1085,13 @@ UtilTransactions::verifyOrderedIndex(Ndb* pNdb,
       
       if (err.status == NdbError::TemporaryError){
 	ERR(err);
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	retryAttempt++;
 	continue;
       }
       ERR(err);
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
         
@@ -1146,7 +1146,7 @@ UtilTransactions::verifyOrderedIndex(Ndb* pNdb,
 	g_err << "Error when comapring records" << endl;
 	g_err << " scanRow: \n" << scanRow.c_str().c_str() << endl;
 	g_err << " pkRow: \n" << pkRow.c_str().c_str() << endl;
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	return NDBT_FAILED;
       }
 
@@ -1156,7 +1156,7 @@ UtilTransactions::verifyOrderedIndex(Ndb* pNdb,
 	if((res= iop->nextResult()) != 0){
 	  g_err << "Failed to find row using index: " << res << endl;
 	  ERR(pTrans->getNdbError());
-	  pNdb->closeTransaction(pTrans);
+	  closeTransaction(pNdb);
 	  return NDBT_FAILED;
 	}
 	
@@ -1164,14 +1164,14 @@ UtilTransactions::verifyOrderedIndex(Ndb* pNdb,
 	  g_err << "Error when comapring records" << endl;
 	  g_err << " scanRow: \n" << scanRow.c_str().c_str() << endl;
 	  g_err << " indexRow: \n" << indexRow.c_str().c_str() << endl;
-	  pNdb->closeTransaction(pTrans);
+	  closeTransaction(pNdb);
 	  return NDBT_FAILED;
 	}
 	
 	if(iop->nextResult() == 0){
 	  g_err << "Found extra row!!" << endl;
 	  g_err << " indexRow: \n" << indexRow.c_str().c_str() << endl;
-	  pNdb->closeTransaction(pTrans);
+	  closeTransaction(pNdb);
 	  return NDBT_FAILED;
 	}
       }
@@ -1184,18 +1184,18 @@ UtilTransactions::verifyOrderedIndex(Ndb* pNdb,
       if (err.status == NdbError::TemporaryError){
 	ERR(err);
 	iop = 0;
-	pNdb->closeTransaction(pTrans);
+	closeTransaction(pNdb);
 	NdbSleep_MilliSleep(50);
 	retryAttempt++;
 	rows--;
 	continue;
       }
       ERR(err);
-      pNdb->closeTransaction(pTrans);
+      closeTransaction(pNdb);
       return NDBT_FAILED;
     }
       
-    pNdb->closeTransaction(pTrans);
+    closeTransaction(pNdb);
     
     return NDBT_OK;
   }
@@ -1303,6 +1303,16 @@ UtilTransactions::getOperation(NdbConnection* pTrans,
 
 #include <HugoOperations.hpp>
 
+int
+UtilTransactions::closeTransaction(Ndb* pNdb)
+{
+  if (pTrans != NULL){
+    pNdb->closeTransaction(pTrans);
+    pTrans = NULL;
+  }
+  return 0;
+}
+
 int 
 UtilTransactions::compare(Ndb* pNdb, const char* tab_name2, int flags){
 
@@ -1313,7 +1323,6 @@ UtilTransactions::compare(Ndb* pNdb, const char* tab_name2, int flags){
 
   HugoCalculator calc(tab);
   NDBT_ResultRow row(tab);
-  NdbTransaction* pTrans= 0;
   const NdbDictionary::Table* tmp= pNdb->getDictionary()->getTable(tab_name2);
   if(tmp == 0)
   {

strings/ctype-gbk.c

@@ -9938,6 +9938,43 @@ my_mb_wc_gbk(CHARSET_INFO *cs __attribute__((unused)),
 }
 
 
+/*
+  Returns well formed length of a GBK string.
+*/
+static
+uint my_well_formed_len_gbk(CHARSET_INFO *cs __attribute__((unused)),
+                            const char *b, const char *e,
+                            uint pos, int *error)
+{
+  const char *b0= b;
+  const char *emb= e - 1; /* Last possible end of an MB character */
+
+  *error= 0;
+  while (pos-- && b < e)
+  {
+    if ((uchar) b[0] < 128)
+    {
+      /* Single byte ascii character */
+      b++;
+    }
+    else  if ((b < emb) && isgbkcode((uchar)*b, (uchar)b[1]))
+    {
+      /* Double byte character */
+      b+= 2;
+    }
+    else
+    {
+      /* Wrong byte sequence */
+      *error= 1;
+      break;
+    }
+  }
+  return b - b0;
+}
+
+
+                             
+
 static MY_COLLATION_HANDLER my_collation_ci_handler =
 {
   NULL,			/* init */
@@ -9960,7 +9997,7 @@ static MY_CHARSET_HANDLER my_charset_handler=
   mbcharlen_gbk,
   my_numchars_mb,
   my_charpos_mb,
-  my_well_formed_len_mb,
+  my_well_formed_len_gbk,
   my_lengthsp_8bit,
   my_numcells_8bit,
   my_mb_wc_gbk,