59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* valid.h
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* POSTGRES tuple qualification validity definitions.
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*
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*
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* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/access/valid.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef VALID_H
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#define VALID_H
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#include "access/htup.h"
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#include "access/htup_details.h"
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#include "access/skey.h"
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#include "access/tupdesc.h"
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/*
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* HeapKeyTest
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*
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* Test a heap tuple to see if it satisfies a scan key.
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*/
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static inline bool
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HeapKeyTest(HeapTuple tuple, TupleDesc tupdesc, int nkeys, ScanKey keys)
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{
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int cur_nkeys = nkeys;
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ScanKey cur_key = keys;
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for (; cur_nkeys--; cur_key++)
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{
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Datum atp;
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bool isnull;
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Datum test;
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if (cur_key->sk_flags & SK_ISNULL)
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return false;
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atp = heap_getattr(tuple, cur_key->sk_attno, tupdesc, &isnull);
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if (isnull)
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return false;
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test = FunctionCall2Coll(&cur_key->sk_func,
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cur_key->sk_collation,
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atp, cur_key->sk_argument);
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if (!DatumGetBool(test))
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return false;
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}
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return true;
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}
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#endif /* VALID_H */
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