72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* pgut-be.c
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*
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* Copyright (c) 2009-2011, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
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* Portions Copyright (c) 2012-2015, The Reorg Development Team
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "access/heapam.h"
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#include "pgut-be.h"
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#if PG_VERSION_NUM < 80400
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char *
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text_to_cstring(const text *t)
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{
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text *tunpacked = pg_detoast_datum_packed((struct varlena *) t);
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int len = VARSIZE_ANY_EXHDR(tunpacked);
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char *result;
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result = (char *) palloc(len + 1);
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memcpy(result, VARDATA_ANY(tunpacked), len);
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result[len] = '\0';
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if (tunpacked != t)
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pfree(tunpacked);
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return result;
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}
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text *
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cstring_to_text(const char *s)
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{
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int len = strlen(s);
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text *result = palloc(len + VARHDRSZ);
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SET_VARSIZE(result, len + VARHDRSZ);
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memcpy(VARDATA(result), s, len);
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return result;
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}
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void
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tuplestore_putvalues(Tuplestorestate *state, TupleDesc tdesc,
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Datum *values, bool *isnull)
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{
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tuplestore_puttuple(state, heap_form_tuple(tdesc, values, isnull));
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}
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Datum
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ExecFetchSlotTupleDatum(TupleTableSlot *slot)
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{
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HeapTuple tup;
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HeapTupleHeader td;
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TupleDesc tupdesc;
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/* Make sure we can scribble on the slot contents ... */
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tup = ExecMaterializeSlot(slot);
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/* ... and set up the composite-Datum header fields, in case not done */
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td = tup->t_data;
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tupdesc = slot->tts_tupleDescriptor;
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HeapTupleHeaderSetDatumLength(td, tup->t_len);
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HeapTupleHeaderSetTypeId(td, tupdesc->tdtypeid);
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HeapTupleHeaderSetTypMod(td, tupdesc->tdtypmod);
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return PointerGetDatum(td);
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}
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#endif
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