A fix (bug #6331: INSERT IGNORE .. SELECT breaks subsequent inserts).

mysql-test/r/ndb_insert.result

@@ -557,3 +557,32 @@ select * from t1 where pk1=1;
 pk1	b	c
 1	2	3
 DROP TABLE t1;
+CREATE TABLE t1(a INT) ENGINE=ndb;
+INSERT IGNORE INTO t1 VALUES (1);
+INSERT IGNORE INTO t1 VALUES (1);
+INSERT IGNORE INTO t1 SELECT a FROM t1;
+INSERT IGNORE INTO t1 SELECT a FROM t1;
+INSERT IGNORE INTO t1 SELECT a FROM t1;
+INSERT IGNORE INTO t1 VALUES (1);
+INSERT IGNORE INTO t1 VALUES (1);
+SELECT * FROM t1;
+a
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+DROP TABLE t1;

mysql-test/t/ndb_insert.test

@@ -583,3 +583,18 @@ INSERT INTO t1 VALUES(1,1,1) ON DUPLICATE KEY UPDATE b=79;
 select * from t1 where pk1=1;
 
 DROP TABLE t1;
+
+#
+# Bug #6331: problem with 'insert ignore'
+#
+
+CREATE TABLE t1(a INT) ENGINE=ndb;
+INSERT IGNORE INTO t1 VALUES (1);
+INSERT IGNORE INTO t1 VALUES (1);
+INSERT IGNORE INTO t1 SELECT a FROM t1;
+INSERT IGNORE INTO t1 SELECT a FROM t1;
+INSERT IGNORE INTO t1 SELECT a FROM t1;
+INSERT IGNORE INTO t1 VALUES (1);
+INSERT IGNORE INTO t1 VALUES (1);
+SELECT * FROM t1;
+DROP TABLE t1;

sql/ha_ndbcluster.cc

@@ -2650,7 +2650,8 @@ int ha_ndbcluster::extra(enum ha_extra_function operation)
       m_use_write= TRUE;
     } else 
     {
-      m_ignore_dup_key_not_supported= TRUE;
+      if (table->keys)
+        m_ignore_dup_key_not_supported= TRUE;
     }
     break;
   case HA_EXTRA_NO_IGNORE_DUP_KEY: