Fix for bug#10936: Cluster engine shows wrong key value for duplicate key error

mysql-test/r/ndb_insert.result

@@ -416,10 +416,12 @@ INSERT INTO t1 VALUES
 SELECT COUNT(*) FROM t1;
 COUNT(*)
 2000
+INSERT INTO t1 VALUES (1,1,1);
+ERROR 23000: Duplicate entry '1' for key 1
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
-ERROR 23000: Duplicate entry '10' for key 1
+ERROR 23000: Can't write; duplicate key in table 't1'
 select count(*) from t1;
 count(*)
 2000
@@ -437,7 +439,7 @@ begin;
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
-ERROR 23000: Duplicate entry '10' for key 1
+ERROR 23000: Can't write; duplicate key in table 't1'
 commit;
 ERROR HY000: Got error 4350 'Transaction already aborted' from ndbcluster
 select * from t1 where pk1=1;
@@ -456,7 +458,7 @@ begin;
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
-ERROR 23000: Duplicate entry '10' for key 1
+ERROR 23000: Can't write; duplicate key in table 't1'
 rollback;
 select * from t1 where pk1=1;
 pk1	b	c
@@ -474,7 +476,7 @@ begin;
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
-ERROR 23000: Duplicate entry '10' for key 1
+ERROR 23000: Can't write; duplicate key in table 't1'
 SELECT * FROM t1 WHERE pk1=10;
 ERROR HY000: Got error 4350 'Transaction already aborted' from ndbcluster
 rollback;
@@ -494,7 +496,7 @@ begin;
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
-ERROR 23000: Duplicate entry '10' for key 1
+ERROR 23000: Can't write; duplicate key in table 't1'
 SELECT * FROM t1 WHERE pk1=10;
 ERROR HY000: Got error 4350 'Transaction already aborted' from ndbcluster
 SELECT * FROM t1 WHERE pk1=10;
@@ -517,7 +519,7 @@ begin;
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
-ERROR 23000: Duplicate entry '10' for key 1
+ERROR 23000: Can't write; duplicate key in table 't1'
 INSERT INTO t1 values (4000, 40, 44);
 ERROR HY000: Got error 4350 'Transaction already aborted' from ndbcluster
 rollback;
@@ -534,7 +536,7 @@ select count(*) from t1;
 count(*)
 2000
 insert into t1 select * from t1 where b < 10 order by pk1;
-ERROR 23000: Duplicate entry '9' for key 1
+ERROR 23000: Can't write; duplicate key in table 't1'
 DELETE FROM t1 WHERE pk1=2;
 begin;
 INSERT IGNORE INTO t1 VALUES(1,2,3),(2,3,4);

mysql-test/t/ndb_insert.test

@@ -434,6 +434,9 @@ SELECT COUNT(*) FROM t1;
 # Insert duplicate rows
 # 
 --error 1062
+INSERT INTO t1 VALUES (1,1,1);
+
+--error 1022
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
@@ -457,7 +460,7 @@ rollback;
 #
 begin;
 
---error 1062
+--error 1022
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
@@ -477,7 +480,7 @@ select count(*) from t1;
 #
 begin;
 
---error 1062
+--error 1022
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
@@ -496,7 +499,7 @@ select count(*) from t1;
 #
 begin;
 
---error 1062
+--error 1022
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
@@ -517,7 +520,7 @@ select count(*) from t1;
 #
 begin;
 
---error 1062
+--error 1022
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
@@ -543,7 +546,7 @@ select count(*) from t1;
 #
 begin;
 
---error 1062
+--error 1022
 INSERT INTO t1 VALUES 
 (1,1,1),(2,2,2),(3,3,3),(4,4,4),(5,5,5),
 (6,6,6),(7,7,7),(8,8,8),(9,9,9),(10,10,10);
@@ -562,7 +565,7 @@ select count(*) from t1;
 # Insert duplicate rows using "insert .. select" 
 
 #
---error 1062
+--error 1022
 insert into t1 select * from t1 where b < 10 order by pk1;
 
 DELETE FROM t1 WHERE pk1=2;

sql/ha_ndbcluster.cc

@@ -435,8 +435,13 @@ int ha_ndbcluster::ndb_err(NdbConnection *trans)
   DBUG_PRINT("info", ("transformed ndbcluster error %d to mysql error %d", 
 		      err.code, res));
   if (res == HA_ERR_FOUND_DUPP_KEY)
+  {
+    if (m_rows_to_insert == 1)
       m_dupkey= table->primary_key;
-  
+    else
+      // We are batching inserts, offending key is not available
+      m_dupkey= (uint) -1;
+  }
   DBUG_RETURN(res);
 }