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1. Vacuum is updated for MVCC.

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2. Much faster btree tuples deletion in the case when first on page
   index tuple is deleted (no movement to the left page(s)).
3. Remember blkno of new root page in BTPageOpaque of
   left/right siblings when root page is splitted.
This commit is contained in:
Vadim B. Mikheev
1999-03-28 20:32:42 +00:00
parent d4ed17842a
commit fdf6be80f9
16 changed files with 802 additions and 352 deletions
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4
src/backend/access/heap/heapam.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.41 1999/02/13 23:14:22 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.42 1999/03/28 20:31:56 vadim Exp $
*
*
* INTERFACE ROUTINES
@ -1270,7 +1270,7 @@ l2:
newtup->t_data->t_cmin = GetCurrentCommandId();
StoreInvalidTransactionId(&(newtup->t_data->t_xmax));
newtup->t_data->t_infomask &= ~(HEAP_XACT_MASK);
newtup->t_data->t_infomask |= HEAP_XMAX_INVALID;
newtup->t_data->t_infomask |= (HEAP_XMAX_INVALID | HEAP_UPDATED);
/* logically delete old item */
TransactionIdStore(GetCurrentTransactionId(), &(oldtup.t_data->t_xmax));