bk commit into 4.0 tree (istruewing:1.2196) BUG#22384

[ingo]

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ChangeSet@stripped, 2006-09-28 11:41:38+02:00, istruewing@stripped +1 -0
  Bug#22384 - DELETE FROM table causes "Incorrect key file for table"
  
  Deletes on a big index could crash the index when it needs to
  shrink.
  
  Put a forgotten negation operator in.
  
  No test case. It is too big for the test suite. And it does not
  work with 4.0, only with higher versions. It is attached to the
  bug report.

  myisam/mi_delete.c@stripped, 2006-09-28 11:41:37+02:00, istruewing@stripped +1 -1
    Bug#22384 - DELETE FROM table causes "Incorrect key file for table"
    Put a negation operator ('!') before _mi_get_last_key() in del().
    It returns NULL on error, non-NULL on success.

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	istruewing
# Host:	chilla.local
# Root:	/home/mydev/mysql-4.0-bug22384

--- 1.14/myisam/mi_delete.c	2006-09-28 11:41:39 +02:00
+++ 1.15/myisam/mi_delete.c	2006-09-28 11:41:39 +02:00
@@ -348,7 +348,7 @@ static int del(register MI_INFO *info, r
 	else
 	{
 	  DBUG_PRINT("test",("Inserting of key when deleting"));
-	  if (_mi_get_last_key(info,keyinfo,leaf_buff,keybuff,endpos,
+	  if (!_mi_get_last_key(info,keyinfo,leaf_buff,keybuff,endpos,
 				&tmp))
 	    goto err;
 	  ret_value=_mi_insert(info,keyinfo,key,leaf_buff,endpos,keybuff,