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c1d62bfd00
Remove the 'strategy map' code, which was a large amount of mechanism that no longer had any use except reverse-mapping from procedure OID to strategy number. Passing the strategy number to the index AM in the first place is simpler and faster. This is a preliminary step in planned support for cross-datatype index operations. I'm committing it now since the ScanKeyEntryInitialize() API change touches quite a lot of files, and I want to commit those changes before the tree drifts under me.
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/*-------------------------------------------------------------------------
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*
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* scankey.c
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* scan key support code
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*
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* Portions Copyright (c) 1996-2003, 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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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/access/common/scankey.c,v 1.23 2003/11/09 21:30:35 tgl Exp $
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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/skey.h"
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/*
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* ScanKeyEntryInitialize
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* Initializes a scan key entry given all the field values.
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* The target procedure is specified by OID.
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*
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* Note: CurrentMemoryContext at call should be as long-lived as the ScanKey
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* itself, because that's what will be used for any subsidiary info attached
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* to the ScanKey's FmgrInfo record.
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*/
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void
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ScanKeyEntryInitialize(ScanKey entry,
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int flags,
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AttrNumber attributeNumber,
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StrategyNumber strategy,
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RegProcedure procedure,
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Datum argument,
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Oid argtype)
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{
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entry->sk_flags = flags;
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entry->sk_attno = attributeNumber;
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entry->sk_strategy = strategy;
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entry->sk_argument = argument;
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entry->sk_argtype = argtype;
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fmgr_info(procedure, &entry->sk_func);
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}
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/*
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* ScanKeyEntryInitializeWithInfo
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* Initializes a scan key entry using an already-completed FmgrInfo
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* function lookup record.
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*
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* Note: CurrentMemoryContext at call should be as long-lived as the ScanKey
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* itself, because that's what will be used for any subsidiary info attached
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* to the ScanKey's FmgrInfo record.
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*/
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void
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ScanKeyEntryInitializeWithInfo(ScanKey entry,
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int flags,
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AttrNumber attributeNumber,
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StrategyNumber strategy,
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FmgrInfo *finfo,
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Datum argument,
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Oid argtype)
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{
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entry->sk_flags = flags;
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entry->sk_attno = attributeNumber;
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entry->sk_strategy = strategy;
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entry->sk_argument = argument;
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entry->sk_argtype = argtype;
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fmgr_info_copy(&entry->sk_func, finfo, CurrentMemoryContext);
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}
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