mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-02-01 03:21:53 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge chilla.local:/home/mydev/mysql-4.1-ateam

Browse source 
into  chilla.local:/home/mydev/mysql-4.1-axmrg
This commit is contained in:
istruewing@chilla.local 2007-07-05 19:38:07 +02:00
commit a5b62446a8
1 changed files with 19 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
mysys/hash.c
View file

@ -572,6 +572,25 @@ my_bool hash_update(HASH *hash,byte *record,byte *old_key,uint old_key_length)
previous->next=pos->next; /* unlink pos */
/* Move data to correct position */
if (new_index == empty)
{
/*
At this point record is unlinked from the old chain, thus it holds
random position. By the chance this position is equal to position
for the first element in the new chain. That means updated record
is the only record in the new chain.
*/
if (empty != idx)
{
/*
Record was moved while unlinking it from the old chain.
Copy data to a new position.
*/
data[empty]= org_link;
}
data[empty].next= NO_RECORD;
DBUG_RETURN(0);
}
pos=data+new_index;
new_pos_index=hash_rec_mask(hash,pos,blength,records);
if (new_index != new_pos_index)