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Add a new tuplestore API function, tuplestore_putvalues(). This is

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identical to tuplestore_puttuple(), except it operates on arrays of
Datums + nulls rather than a fully-formed HeapTuple. In several places
that use the tuplestore API, this means we can avoid creating a
HeapTuple altogether, saving a copy.
This commit is contained in:
Neil Conway
2008-03-25 19:26:54 +00:00
parent 76cf067ae4
commit 1d812a98b4
7 changed files with 59 additions and 47 deletions
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7
src/backend/utils/mmgr/portalmem.c
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@@ -12,7 +12,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/mmgr/portalmem.c,v 1.106 2008/01/01 19:45:55 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/mmgr/portalmem.c,v 1.107 2008/03/25 19:26:53 neilc Exp $
*
*-------------------------------------------------------------------------
*/
@@ -911,7 +911,6 @@ pg_cursor(PG_FUNCTION_ARGS)
while ((hentry = hash_seq_search(&hash_seq)) != NULL)
{
Portal portal = hentry->portal;
HeapTuple tuple;
Datum values[6];
bool nulls[6];
@@ -935,11 +934,9 @@ pg_cursor(PG_FUNCTION_ARGS)
values[4] = BoolGetDatum(portal->cursorOptions & CURSOR_OPT_SCROLL);
values[5] = TimestampTzGetDatum(portal->creation_time);
tuple = heap_form_tuple(tupdesc, values, nulls);
/* switch to appropriate context while storing the tuple */
MemoryContextSwitchTo(per_query_ctx);
tuplestore_puttuple(tupstore, tuple);
tuplestore_putvalues(tupstore, tupdesc, values, nulls);
}
/* clean up and return the tuplestore */