A fix (bug #6878: Crash with engine=memory).

heap/hp_create.c:
  A fix (bug #6878: Crash with engine=memory).
  Record length should be >= sizeof(byte*).

1 files changed, 7 insertions, 0 deletions

diff --git a/heap/hp_create.c b/heap/hp_create.c
index d1783118c0d..fdfe78a1e09 100644
--- a/heap/hp_create.c
+++ b/heap/hp_create.c
@@ -41,6 +41,13 @@ int heap_create(const char *name, uint keys, HP_KEYDEF *keydef,
   {
     HP_KEYDEF *keyinfo;
     DBUG_PRINT("info",("Initializing new table"));
+    
+    /*
+      We have to store sometimes byte* del_link in records,
+      so the record length should be at least sizeof(byte*)
+    */
+    set_if_bigger(reclength, sizeof (byte*));
+    
     for (i= key_segs= max_length= 0, keyinfo= keydef; i < keys; i++, keyinfo++)
     {
       bzero((char*) &keyinfo->block,sizeof(keyinfo->block));