2001-06-25 23:11:45 +02:00
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/*-------------------------------------------------------------------------
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*
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* selfuncs.h
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* Selectivity functions and index cost estimation functions for
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* standard operators and index access methods.
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*
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*
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* Portions Copyright (c) 1996-2001, 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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2001-10-28 07:26:15 +01:00
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* $Id: selfuncs.h,v 1.3 2001/10/28 06:26:09 momjian Exp $
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2001-06-25 23:11:45 +02:00
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef SELFUNCS_H
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#define SELFUNCS_H
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#include "fmgr.h"
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#include "nodes/parsenodes.h"
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typedef enum
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{
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2001-10-28 07:26:15 +01:00
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Pattern_Type_Like, Pattern_Type_Like_IC,
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Pattern_Type_Regex, Pattern_Type_Regex_IC
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2001-06-25 23:11:45 +02:00
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} Pattern_Type;
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typedef enum
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{
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2001-10-28 07:26:15 +01:00
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Pattern_Prefix_None, Pattern_Prefix_Partial, Pattern_Prefix_Exact
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2001-06-25 23:11:45 +02:00
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} Pattern_Prefix_Status;
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/* selfuncs.c */
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extern Pattern_Prefix_Status pattern_fixed_prefix(char *patt,
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Pattern_Type ptype,
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char **prefix,
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char **rest);
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extern bool locale_is_like_safe(void);
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extern char *make_greater_string(const char *str, Oid datatype);
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extern Datum eqsel(PG_FUNCTION_ARGS);
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extern Datum neqsel(PG_FUNCTION_ARGS);
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extern Datum scalarltsel(PG_FUNCTION_ARGS);
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extern Datum scalargtsel(PG_FUNCTION_ARGS);
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extern Datum regexeqsel(PG_FUNCTION_ARGS);
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extern Datum icregexeqsel(PG_FUNCTION_ARGS);
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extern Datum likesel(PG_FUNCTION_ARGS);
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extern Datum iclikesel(PG_FUNCTION_ARGS);
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extern Datum regexnesel(PG_FUNCTION_ARGS);
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extern Datum icregexnesel(PG_FUNCTION_ARGS);
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extern Datum nlikesel(PG_FUNCTION_ARGS);
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extern Datum icnlikesel(PG_FUNCTION_ARGS);
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extern Datum eqjoinsel(PG_FUNCTION_ARGS);
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extern Datum neqjoinsel(PG_FUNCTION_ARGS);
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extern Datum scalarltjoinsel(PG_FUNCTION_ARGS);
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extern Datum scalargtjoinsel(PG_FUNCTION_ARGS);
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extern Datum regexeqjoinsel(PG_FUNCTION_ARGS);
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extern Datum icregexeqjoinsel(PG_FUNCTION_ARGS);
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extern Datum likejoinsel(PG_FUNCTION_ARGS);
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extern Datum iclikejoinsel(PG_FUNCTION_ARGS);
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extern Datum regexnejoinsel(PG_FUNCTION_ARGS);
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extern Datum icregexnejoinsel(PG_FUNCTION_ARGS);
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extern Datum nlikejoinsel(PG_FUNCTION_ARGS);
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extern Datum icnlikejoinsel(PG_FUNCTION_ARGS);
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Selectivity booltestsel(Query *root, BooleanTest *clause, int varRelid);
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Selectivity nulltestsel(Query *root, NullTest *clause, int varRelid);
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extern Datum btcostestimate(PG_FUNCTION_ARGS);
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extern Datum rtcostestimate(PG_FUNCTION_ARGS);
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extern Datum hashcostestimate(PG_FUNCTION_ARGS);
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extern Datum gistcostestimate(PG_FUNCTION_ARGS);
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2001-10-28 07:26:15 +01:00
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2001-06-25 23:11:45 +02:00
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#endif /* SELFUNCS_H */
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