fmgrtab.h

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/*-------------------------------------------------------------------------
 *
 * fmgrtab.h
 *    The function manager's table of internal functions.
 *
 * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/utils/fmgrtab.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef FMGRTAB_H
#define FMGRTAB_H

#include "fmgr.h"


/*
 * This table stores info about all the built-in functions (ie, functions
 * that are compiled into the Postgres executable).  The table entries are
 * required to appear in Oid order, so that binary search can be used.
 */

typedef struct
{
    Oid         foid;           /* OID of the function */
    const char *funcName;       /* C name of the function */
    short       nargs;          /* 0..FUNC_MAX_ARGS, or -1 if variable count */
    bool        strict;         /* T if function is "strict" */
    bool        retset;         /* T if function returns a set */
    PGFunction  func;           /* pointer to compiled function */
} FmgrBuiltin;

extern const FmgrBuiltin fmgr_builtins[];

extern const int fmgr_nbuiltins;    /* number of entries in table */

#endif   /* FMGRTAB_H */