HASHCTL ctl;
int ret;
int proc;
- MemoryContext SPIcontext;
/* initialize the category hash table */
MemSet(&ctl, 0, sizeof(ctl));
/* rowid changed, flush the previous output row */
tuple = BuildTupleFromCStrings(attinmeta, values);
- /* switch to appropriate context while storing the tuple */
- SPIcontext = MemoryContextSwitchTo(per_query_ctx);
tuplestore_puttuple(tupstore, tuple);
- MemoryContextSwitchTo(SPIcontext);
for (j = 0; j < result_ncols; j++)
xpfree(values[j]);
/* flush the last output row */
tuple = BuildTupleFromCStrings(attinmeta, values);
- /* switch to appropriate context while storing the tuple */
- SPIcontext = MemoryContextSwitchTo(per_query_ctx);
tuplestore_puttuple(tupstore, tuple);
- MemoryContextSwitchTo(SPIcontext);
}
if (SPI_finish() != SPI_OK_FINISH)
Tuplestorestate *tupstore)
{
TupleDesc tupdesc = attinmeta->tupdesc;
- MemoryContext oldcontext;
int ret;
int proc;
int serial_column;
/* construct the tuple */
tuple = BuildTupleFromCStrings(attinmeta, values);
- /* switch to long lived context while storing the tuple */
- oldcontext = MemoryContextSwitchTo(per_query_ctx);
-
/* now store it */
tuplestore_puttuple(tupstore, tuple);
- /* now reset the context */
- MemoryContextSwitchTo(oldcontext);
-
/* increment level */
level++;
}
xpfree(current_key);
xpfree(current_key_parent);
- /* switch to long lived context while storing the tuple */
- oldcontext = MemoryContextSwitchTo(per_query_ctx);
-
/* store the tuple for later use */
tuplestore_puttuple(tupstore, tuple);
- /* now reset the context */
- MemoryContextSwitchTo(oldcontext);
-
heap_freetuple(tuple);
/* recurse using current_key_parent as the new start_with */
{
/* not well-formed, so output all-NULL tuple */
ret_tuple = BuildTupleFromCStrings(attinmeta, values);
- oldcontext = MemoryContextSwitchTo(per_query_ctx);
tuplestore_puttuple(tupstore, ret_tuple);
- MemoryContextSwitchTo(oldcontext);
heap_freetuple(ret_tuple);
}
else
if (had_values)
{
ret_tuple = BuildTupleFromCStrings(attinmeta, values);
- oldcontext = MemoryContextSwitchTo(per_query_ctx);
tuplestore_puttuple(tupstore, ret_tuple);
- MemoryContextSwitchTo(oldcontext);
heap_freetuple(ret_tuple);
}
* Copyright (c) 2002-2008, PostgreSQL Global Development Group
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.80.2.1 2008/04/02 18:32:00 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/commands/prepare.c,v 1.80.2.2 2009/12/29 17:41:18 heikki Exp $
*
*-------------------------------------------------------------------------
*/
*/
tupstore = tuplestore_begin_heap(true, false, work_mem);
+ /* generate junk in short-term context */
+ MemoryContextSwitchTo(oldcontext);
+
/* hash table might be uninitialized */
if (prepared_queries)
{
Datum values[5];
bool nulls[5];
- /* generate junk in short-term context */
- MemoryContextSwitchTo(oldcontext);
-
MemSet(nulls, 0, sizeof(nulls));
values[0] = DirectFunctionCall1(textin,
values[4] = BoolGetDatum(prep_stmt->from_sql);
tuple = heap_form_tuple(tupdesc, values, nulls);
-
- /* switch to appropriate context while storing the tuple */
- MemoryContextSwitchTo(per_query_ctx);
tuplestore_puttuple(tupstore, tuple);
}
}
/* clean up and return the tuplestore */
tuplestore_donestoring(tupstore);
- MemoryContextSwitchTo(oldcontext);
-
rsinfo->returnMode = SFRM_Materialize;
rsinfo->setResult = tupstore;
rsinfo->setDesc = tupdesc;
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/executor/execQual.c,v 1.226.2.1 2008/11/15 20:53:40 petere Exp $
+ * $PostgreSQL: pgsql/src/backend/executor/execQual.c,v 1.226.2.2 2009/12/29 17:41:18 heikki Exp $
*
*-------------------------------------------------------------------------
*/
tuple = heap_form_tuple(tupdesc, &result, &fcinfo.isnull);
}
- oldcontext = MemoryContextSwitchTo(econtext->ecxt_per_query_memory);
tuplestore_puttuple(tupstore, tuple);
- MemoryContextSwitchTo(oldcontext);
/*
* Are we done?
memset(nullflags, true, natts * sizeof(bool));
tuple = heap_form_tuple(expectedDesc, nulldatums, nullflags);
MemoryContextSwitchTo(econtext->ecxt_per_query_memory);
+
tuplestore_puttuple(tupstore, tuple);
}
}
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/executor/tstoreReceiver.c,v 1.19.2.1 2008/12/01 17:06:27 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/executor/tstoreReceiver.c,v 1.19.2.2 2009/12/29 17:41:18 heikki Exp $
*
*-------------------------------------------------------------------------
*/
tstoreReceiveSlot_notoast(TupleTableSlot *slot, DestReceiver *self)
{
TStoreState *myState = (TStoreState *) self;
- MemoryContext oldcxt = MemoryContextSwitchTo(myState->cxt);
tuplestore_puttupleslot(myState->tstore, slot);
-
- MemoryContextSwitchTo(oldcxt);
}
/*
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/mmgr/portalmem.c,v 1.106.2.1 2008/04/02 18:32:00 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/mmgr/portalmem.c,v 1.106.2.2 2009/12/29 17:41:18 heikki Exp $
*
*-------------------------------------------------------------------------
*/
*/
tupstore = tuplestore_begin_heap(true, false, work_mem);
+ /* generate junk in short-term context */
+ MemoryContextSwitchTo(oldcontext);
+
hash_seq_init(&hash_seq, PortalHashTable);
while ((hentry = hash_seq_search(&hash_seq)) != NULL)
{
if (!portal->visible)
continue;
- /* generate junk in short-term context */
- MemoryContextSwitchTo(oldcontext);
-
MemSet(nulls, 0, sizeof(nulls));
values[0] = DirectFunctionCall1(textin, CStringGetDatum(portal->name));
tuple = heap_form_tuple(tupdesc, values, nulls);
- /* switch to appropriate context while storing the tuple */
- MemoryContextSwitchTo(per_query_ctx);
tuplestore_puttuple(tupstore, tuple);
}
/* clean up and return the tuplestore */
tuplestore_donestoring(tupstore);
- MemoryContextSwitchTo(oldcontext);
-
rsinfo->returnMode = SFRM_Materialize;
rsinfo->setResult = tupstore;
rsinfo->setDesc = tupdesc;
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/sort/tuplestore.c,v 1.36 2008/01/01 19:45:55 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/sort/tuplestore.c,v 1.36.2.1 2009/12/29 17:41:18 heikki Exp $
*
*-------------------------------------------------------------------------
*/
#include "executor/executor.h"
#include "storage/buffile.h"
#include "utils/memutils.h"
+#include "utils/resowner.h"
#include "utils/tuplestore.h"
bool interXact; /* keep open through transactions? */
long availMem; /* remaining memory available, in bytes */
BufFile *myfile; /* underlying file, or NULL if none */
+ MemoryContext context; /* memory context for holding tuples */
+ ResourceOwner resowner; /* resowner for holding temp files */
/*
* These function pointers decouple the routines that must know what kind
state->interXact = interXact;
state->availMem = maxKBytes * 1024L;
state->myfile = NULL;
+ state->context = CurrentMemoryContext;
+ state->resowner = CurrentResourceOwner;
state->memtupcount = 0;
state->memtupsize = 1024; /* initial guess */
*
* interXact: if true, the files used for on-disk storage persist beyond the
* end of the current transaction. NOTE: It's the caller's responsibility to
- * create such a tuplestore in a memory context that will also survive
- * transaction boundaries, and to ensure the tuplestore is closed when it's
- * no longer wanted.
+ * create such a tuplestore in a memory context and resource owner that will
+ * also survive transaction boundaries, and to ensure the tuplestore is closed
+ * when it's no longer wanted.
*
* maxKBytes: how much data to store in memory (any data beyond this
* amount is paged to disk). When in doubt, use work_mem.
TupleTableSlot *slot)
{
MinimalTuple tuple;
+ MemoryContext oldcxt = MemoryContextSwitchTo(state->context);
/*
* Form a MinimalTuple in working memory
USEMEM(state, GetMemoryChunkSpace(tuple));
tuplestore_puttuple_common(state, (void *) tuple);
+
+ MemoryContextSwitchTo(oldcxt);
}
/*
void
tuplestore_puttuple(Tuplestorestate *state, HeapTuple tuple)
{
+ MemoryContext oldcxt = MemoryContextSwitchTo(state->context);
+
/*
* Copy the tuple. (Must do this even in WRITEFILE case.)
*/
tuple = COPYTUP(state, tuple);
tuplestore_puttuple_common(state, (void *) tuple);
+
+ MemoryContextSwitchTo(oldcxt);
}
static void
tuplestore_puttuple_common(Tuplestorestate *state, void *tuple)
{
+ ResourceOwner oldowner;
+
switch (state->status)
{
case TSS_INMEM:
* the temp file(s) are created in suitable temp tablespaces.
*/
PrepareTempTablespaces();
+
+ /* associate the file with the store's resource owner */
+ oldowner = CurrentResourceOwner;
+ CurrentResourceOwner = state->resowner;
+
state->myfile = BufFileCreateTemp(state->interXact);
+
+ CurrentResourceOwner = oldowner;
+
state->status = TSS_WRITEFILE;
dumptuples(state);
break;
/**********************************************************************
* plperl.c - perl as a procedural language for PostgreSQL
*
- * $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.136.2.5 2009/11/29 21:02:28 tgl Exp $
+ * $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.136.2.6 2009/12/29 17:41:18 heikki Exp $
*
**********************************************************************/
tuple = heap_form_tuple(current_call_data->ret_tdesc, &ret, &isNull);
}
- /* Make sure to store the tuple in a long-lived memory context */
- MemoryContextSwitchTo(rsi->econtext->ecxt_per_query_memory);
tuplestore_puttuple(current_call_data->tuple_store, tuple);
- MemoryContextSwitchTo(old_cxt);
+ MemoryContextSwitchTo(old_cxt);
MemoryContextReset(current_call_data->tmp_cxt);
}
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.202.2.5 2009/04/02 01:16:17 tgl Exp $
+ * $PostgreSQL: pgsql/src/pl/plpgsql/src/pl_exec.c,v 1.202.2.6 2009/12/29 17:41:18 heikki Exp $
*
*-------------------------------------------------------------------------
*/
if (HeapTupleIsValid(tuple))
{
- MemoryContext oldcxt;
-
- oldcxt = MemoryContextSwitchTo(estate->tuple_store_cxt);
tuplestore_puttuple(estate->tuple_store, tuple);
- MemoryContextSwitchTo(oldcxt);
if (free_tuple)
heap_freetuple(tuple);
while (true)
{
- MemoryContext old_cxt;
int i;
SPI_cursor_fetch(portal, true, 50);
if (SPI_processed == 0)
break;
- old_cxt = MemoryContextSwitchTo(estate->tuple_store_cxt);
for (i = 0; i < SPI_processed; i++)
{
HeapTuple tuple = SPI_tuptable->vals[i];
tuplestore_puttuple(estate->tuple_store, tuple);
}
- MemoryContextSwitchTo(old_cxt);
SPI_freetuptable(SPI_tuptable);
}
{
ReturnSetInfo *rsi = estate->rsi;
MemoryContext oldcxt;
+ ResourceOwner oldowner;
/*
* Check caller can handle a set result in the way we want
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("set-valued function called in context that cannot accept a set")));
- estate->tuple_store_cxt = rsi->econtext->ecxt_per_query_memory;
-
+ /*
+ * Switch to the right memory context and resource owner for storing
+ * the tuplestore for return set. If we're within a subtransaction opened
+ * for an exception-block, for example, we must still create the
+ * tuplestore in the resource owner that was active when this function was
+ * entered, and not in the subtransaction resource owner.
+ */
oldcxt = MemoryContextSwitchTo(estate->tuple_store_cxt);
+ oldowner = CurrentResourceOwner;
+ CurrentResourceOwner = estate->tuple_store_owner;
+
estate->tuple_store = tuplestore_begin_heap(true, false, work_mem);
+
+ CurrentResourceOwner = oldowner;
MemoryContextSwitchTo(oldcxt);
estate->rettupdesc = rsi->expectedDesc;
estate->exitlabel = NULL;
estate->tuple_store = NULL;
- estate->tuple_store_cxt = NULL;
+ if (rsi)
+ {
+ estate->tuple_store_cxt = rsi->econtext->ecxt_per_query_memory;
+ estate->tuple_store_owner = CurrentResourceOwner;
+ }
+ else
+ {
+ estate->tuple_store_cxt = NULL;
+ estate->tuple_store_owner = NULL;
+ }
estate->rsi = rsi;
estate->trig_nargs = 0;
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/pl/plpgsql/src/plpgsql.h,v 1.95.2.1 2008/10/09 16:35:13 tgl Exp $
+ * $PostgreSQL: pgsql/src/pl/plpgsql/src/plpgsql.h,v 1.95.2.2 2009/12/29 17:41:18 heikki Exp $
*
*-------------------------------------------------------------------------
*/
Tuplestorestate *tuple_store; /* SRFs accumulate results here */
MemoryContext tuple_store_cxt;
+ ResourceOwner tuple_store_owner;
ReturnSetInfo *rsi;
int trig_nargs;
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