44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
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/*-------------------------------------------------------------------------
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*
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* stat_utils.h
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* Extended statistics and selectivity estimation functions.
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*
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* Portions Copyright (c) 1996-2025, 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/statistics/stat_utils.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef STATS_UTILS_H
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#define STATS_UTILS_H
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#include "fmgr.h"
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/* avoid including primnodes.h here */
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struct RangeVar;
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struct StatsArgInfo
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{
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const char *argname;
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Oid argtype;
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};
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extern void stats_check_required_arg(FunctionCallInfo fcinfo,
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struct StatsArgInfo *arginfo,
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int argnum);
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extern bool stats_check_arg_array(FunctionCallInfo fcinfo,
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struct StatsArgInfo *arginfo, int argnum);
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extern bool stats_check_arg_pair(FunctionCallInfo fcinfo,
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struct StatsArgInfo *arginfo,
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int argnum1, int argnum2);
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extern void RangeVarCallbackForStats(const struct RangeVar *relation,
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Oid relId, Oid oldRelid, void *arg);
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extern bool stats_fill_fcinfo_from_arg_pairs(FunctionCallInfo pairs_fcinfo,
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FunctionCallInfo positional_fcinfo,
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struct StatsArgInfo *arginfo);
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#endif /* STATS_UTILS_H */
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