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-rw-r--r--myisam/mi_rkey.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/myisam/mi_rkey.c b/myisam/mi_rkey.c
index f9fbe559a62..83259a275b1 100644
--- a/myisam/mi_rkey.c
+++ b/myisam/mi_rkey.c
@@ -61,7 +61,8 @@ int mi_rkey(MI_INFO *info, byte *buf, int inx, const byte *key, uint key_len,
key_len, &last_used_keyseg);
/* Save packed_key_length for use by the MERGE engine. */
info->pack_key_length= pack_key_length;
- info->last_used_keyseg= last_used_keyseg - info->s->keyinfo[inx].seg;
+ info->last_used_keyseg= (uint16) (last_used_keyseg -
+ info->s->keyinfo[inx].seg);
DBUG_EXECUTE("key",_mi_print_key(DBUG_FILE, keyinfo->seg,
key_buff, pack_key_length););
}