database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-28 23:42:10 +03:00
Code Activity

Remove mark/restore support in GIN and GiST indexes.

Browse Source 
Per Tom's comment.
Also revome useless GISTScanOpaque->flags field.
This commit is contained in:
Teodor Sigaev
2008-10-20 13:39:44 +00:00
parent 7f6bc33fe3
commit 77db9d9ff2
6 changed files with 20 additions and 250 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
src/backend/access/gin/ginget.c
View File

@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/gin/ginget.c,v 1.19 2008/09/04 11:47:05 teodor Exp $
* $PostgreSQL: pgsql/src/backend/access/gin/ginget.c,v 1.20 2008/10/20 13:39:44 teodor Exp $
*-------------------------------------------------------------------------
*/
@ -582,54 +582,6 @@ entryGetItem(Relation index, GinScanEntry entry)
return entry->isFinished;
}
/*
* restart from saved position. Actually it's needed only for
* partial match. function is called only by ginrestpos()
*/
void
ginrestartentry(GinScanEntry entry)
{
ItemPointerData stopItem = entry->curItem;
bool savedReduceResult;
if ( entry->master || entry->partialMatch == NULL )
return; /* entry is slave or not a partial match type*/
if ( entry->isFinished )
return; /* entry was finished before ginmarkpos() call */
if ( ItemPointerGetBlockNumber(&stopItem) == InvalidBlockNumber )
return; /* entry wasn't began before ginmarkpos() call */
/*
* Reset iterator
*/
tbm_begin_iterate( entry->partialMatch );
entry->partialMatchResult = NULL;
entry->offset = 0;
/*
* Temporary reset reduceResult flag to guarantee refinding
* of curItem
*/
savedReduceResult = entry->reduceResult;
entry->reduceResult = FALSE;
do
{
/*
* We can use null instead of index because
* partial match doesn't use it
*/
if ( entryGetItem( NULL, entry ) == false )
elog(ERROR, "cannot refind scan position"); /* must not be here! */
} while( compareItemPointers( &stopItem, &entry->curItem ) != 0 );
Assert( entry->isFinished == FALSE );
entry->reduceResult = savedReduceResult;
}
/*
* Sets key->curItem to new found heap item pointer for one scan key
* Returns isFinished, ie TRUE means we did NOT get a new item pointer!