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abb6762450
Use a per-tuple memory context when receiving chunk statistics from data nodes. Otherwise memory usage is proportional to the number of chunks and columns.
37 lines
1.6 KiB
C
37 lines
1.6 KiB
C
/*
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* This file and its contents are licensed under the Timescale License.
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* Please see the included NOTICE for copyright information and
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* LICENSE-TIMESCALE for a copy of the license.
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*/
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#ifndef TIMESCALEDB_TSL_REMOTE_TUPLEFACTORY_H
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#define TIMESCALEDB_TSL_REMOTE_TUPLEFACTORY_H
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#include <postgres.h>
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#include <funcapi.h>
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#include <libpq-fe.h>
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#include <nodes/execnodes.h>
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#include <nodes/pathnodes.h>
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#include <utils/palloc.h>
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#include "data_format.h"
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typedef struct TupleFactory TupleFactory;
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typedef struct TupleDescData *TupleDesc;
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extern TupleFactory *tuplefactory_create_for_tupdesc(TupleDesc tupdesc, bool force_text);
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extern TupleFactory *tuplefactory_create_for_rel(Relation rel, List *retrieved_attrs);
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extern TupleFactory *tuplefactory_create_for_scan(ScanState *ss, List *retrieved_attrs);
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extern void tuplefactory_destroy(TupleFactory *tf);
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extern HeapTuple tuplefactory_make_tuple(TupleFactory *tf, PGresult *res, int row, int format);
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extern ItemPointer tuplefactory_make_virtual_tuple(TupleFactory *tf, PGresult *res, int row,
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int format, Datum *values, bool *nulls);
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extern bool tuplefactory_is_binary(TupleFactory *tf);
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extern void tuplefactory_set_per_tuple_mctx_reset(TupleFactory *tf, bool reset);
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extern void tuplefactory_reset_mctx(TupleFactory *tf);
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extern struct AttConvInMetadata *tuplefactory_get_attconv(TupleFactory *tf);
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extern TupleDesc tuplefactory_get_tupdesc(TupleFactory *tf);
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extern List *tuplefactory_get_retrieved_attrs(TupleFactory *tf);
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extern int tuplefactory_get_nattrs(TupleFactory *tf);
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#endif /* TIMESCALEDB_TSL_REMOTE_TUPLEFACTORY_H */
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