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Restructure system-catalog index updating logic. Instead of having

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hardwired lists of index names for each catalog, use the relcache's
mechanism for caching lists of OIDs of indexes of any table.  This
reduces the common case of updating system catalog indexes to a single
line, makes it much easier to add a new system index (in fact, you
can now do so on-the-fly if you want to), and as a nice side benefit
improves performance a little.  Per recent pghackers discussion.
This commit is contained in:
Tom Lane
2002-08-05 03:29:17 +00:00
parent 07f9682de4
commit 15fe086fba
29 changed files with 288 additions and 851 deletions
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22
src/backend/storage/large_object/inv_api.c
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@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/large_object/inv_api.c,v 1.93 2002/06/20 20:29:35 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/large_object/inv_api.c,v 1.94 2002/08/05 03:29:17 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -404,8 +404,7 @@ inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes)
Datum values[Natts_pg_largeobject];
char nulls[Natts_pg_largeobject];
char replace[Natts_pg_largeobject];
bool write_indices;
Relation idescs[Num_pg_largeobject_indices];
CatalogIndexState indstate;
Assert(PointerIsValid(obj_desc));
Assert(buf != NULL);
@@ -413,11 +412,7 @@ inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes)
if (nbytes <= 0)
return 0;
write_indices = !IsIgnoringSystemIndexes();
if (write_indices)
CatalogOpenIndices(Num_pg_largeobject_indices,
Name_pg_largeobject_indices,
idescs);
indstate = CatalogOpenIndexes(obj_desc->heap_r);
ScanKeyEntryInitialize(&skey[0],
(bits16) 0x0,
@@ -511,9 +506,7 @@ inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes)
newtup = heap_modifytuple(oldtuple, obj_desc->heap_r,
values, nulls, replace);
simple_heap_update(obj_desc->heap_r, &newtup->t_self, newtup);
if (write_indices)
CatalogIndexInsert(idescs, Num_pg_largeobject_indices,
obj_desc->heap_r, newtup);
CatalogIndexInsert(indstate, newtup);
heap_freetuple(newtup);
/*
@@ -556,9 +549,7 @@ inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes)
values[Anum_pg_largeobject_data - 1] = PointerGetDatum(&workbuf);
newtup = heap_formtuple(obj_desc->heap_r->rd_att, values, nulls);
simple_heap_insert(obj_desc->heap_r, newtup);
if (write_indices)
CatalogIndexInsert(idescs, Num_pg_largeobject_indices,
obj_desc->heap_r, newtup);
CatalogIndexInsert(indstate, newtup);
heap_freetuple(newtup);
}
pageno++;
@@ -566,8 +557,7 @@ inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes)
index_endscan(sd);
if (write_indices)
CatalogCloseIndices(Num_pg_largeobject_indices, idescs);
CatalogCloseIndexes(indstate);
/*
* Advance command counter so that my tuple updates will be seen by