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/*-------------------------------------------------------------------------
 *
 * builtins.h
 *	  Declarations for operations on built-in types.
 *
 *
 * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/utils/builtins.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef BUILTINS_H
#define BUILTINS_H

#include "fmgr.h"
#include "nodes/parsenodes.h"
#include "utils/sortsupport.h"

/*
 *		Defined in adt/
 */

/* acl.c */
extern Datum has_any_column_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_any_column_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_any_column_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_any_column_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_any_column_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_any_column_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_name_name_name(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_name_name_attnum(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_name_id_name(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_name_id_attnum(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_id_name_name(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_id_name_attnum(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_id_id_name(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_id_id_attnum(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_name_attnum(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_column_privilege_id_attnum(PG_FUNCTION_ARGS);
extern Datum has_table_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_table_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_table_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_table_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_table_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_table_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_sequence_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_sequence_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_sequence_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_sequence_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_sequence_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_sequence_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_database_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_database_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_database_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_database_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_database_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_database_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_foreign_data_wrapper_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_foreign_data_wrapper_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_foreign_data_wrapper_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_foreign_data_wrapper_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_foreign_data_wrapper_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_foreign_data_wrapper_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_function_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_function_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_function_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_function_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_function_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_function_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_language_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_language_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_language_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_language_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_language_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_language_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_schema_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_schema_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_schema_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_schema_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_schema_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_schema_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_server_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_server_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_server_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_server_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_server_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_server_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_tablespace_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_tablespace_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_tablespace_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_tablespace_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_tablespace_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_tablespace_privilege_id(PG_FUNCTION_ARGS);
extern Datum has_type_privilege_name_name(PG_FUNCTION_ARGS);
extern Datum has_type_privilege_name_id(PG_FUNCTION_ARGS);
extern Datum has_type_privilege_id_name(PG_FUNCTION_ARGS);
extern Datum has_type_privilege_id_id(PG_FUNCTION_ARGS);
extern Datum has_type_privilege_name(PG_FUNCTION_ARGS);
extern Datum has_type_privilege_id(PG_FUNCTION_ARGS);
extern Datum pg_has_role_name_name(PG_FUNCTION_ARGS);
extern Datum pg_has_role_name_id(PG_FUNCTION_ARGS);
extern Datum pg_has_role_id_name(PG_FUNCTION_ARGS);
extern Datum pg_has_role_id_id(PG_FUNCTION_ARGS);
extern Datum pg_has_role_name(PG_FUNCTION_ARGS);
extern Datum pg_has_role_id(PG_FUNCTION_ARGS);

/* amutils.c */
extern Datum pg_indexam_has_property(PG_FUNCTION_ARGS);
extern Datum pg_index_has_property(PG_FUNCTION_ARGS);
extern Datum pg_index_column_has_property(PG_FUNCTION_ARGS);

/* bool.c */
extern Datum boolin(PG_FUNCTION_ARGS);
extern Datum boolout(PG_FUNCTION_ARGS);
extern Datum boolrecv(PG_FUNCTION_ARGS);
extern Datum boolsend(PG_FUNCTION_ARGS);
extern Datum booltext(PG_FUNCTION_ARGS);
extern Datum booleq(PG_FUNCTION_ARGS);
extern Datum boolne(PG_FUNCTION_ARGS);
extern Datum boollt(PG_FUNCTION_ARGS);
extern Datum boolgt(PG_FUNCTION_ARGS);
extern Datum boolle(PG_FUNCTION_ARGS);
extern Datum boolge(PG_FUNCTION_ARGS);
extern Datum booland_statefunc(PG_FUNCTION_ARGS);
extern Datum boolor_statefunc(PG_FUNCTION_ARGS);
extern Datum bool_accum(PG_FUNCTION_ARGS);
extern Datum bool_accum_inv(PG_FUNCTION_ARGS);
extern Datum bool_alltrue(PG_FUNCTION_ARGS);
extern Datum bool_anytrue(PG_FUNCTION_ARGS);
extern bool parse_bool(const char *value, bool *result);
extern bool parse_bool_with_len(const char *value, size_t len, bool *result);

/* char.c */
extern Datum charin(PG_FUNCTION_ARGS);
extern Datum charout(PG_FUNCTION_ARGS);
extern Datum charrecv(PG_FUNCTION_ARGS);
extern Datum charsend(PG_FUNCTION_ARGS);
extern Datum chareq(PG_FUNCTION_ARGS);
extern Datum charne(PG_FUNCTION_ARGS);
extern Datum charlt(PG_FUNCTION_ARGS);
extern Datum charle(PG_FUNCTION_ARGS);
extern Datum chargt(PG_FUNCTION_ARGS);
extern Datum charge(PG_FUNCTION_ARGS);
extern Datum chartoi4(PG_FUNCTION_ARGS);
extern Datum i4tochar(PG_FUNCTION_ARGS);
extern Datum text_char(PG_FUNCTION_ARGS);
extern Datum char_text(PG_FUNCTION_ARGS);

/* domains.c */
extern Datum domain_in(PG_FUNCTION_ARGS);
extern Datum domain_recv(PG_FUNCTION_ARGS);
extern void domain_check(Datum value, bool isnull, Oid domainType,
			 void **extra, MemoryContext mcxt);
extern int	errdatatype(Oid datatypeOid);
extern int	errdomainconstraint(Oid datatypeOid, const char *conname);

/* encode.c */
extern Datum binary_encode(PG_FUNCTION_ARGS);
extern Datum binary_decode(PG_FUNCTION_ARGS);
extern unsigned hex_encode(const char *src, unsigned len, char *dst);
extern unsigned hex_decode(const char *src, unsigned len, char *dst);

/* enum.c */
extern Datum enum_in(PG_FUNCTION_ARGS);
extern Datum enum_out(PG_FUNCTION_ARGS);
extern Datum enum_recv(PG_FUNCTION_ARGS);
extern Datum enum_send(PG_FUNCTION_ARGS);
extern Datum enum_lt(PG_FUNCTION_ARGS);
extern Datum enum_le(PG_FUNCTION_ARGS);
extern Datum enum_eq(PG_FUNCTION_ARGS);
extern Datum enum_ne(PG_FUNCTION_ARGS);
extern Datum enum_ge(PG_FUNCTION_ARGS);
extern Datum enum_gt(PG_FUNCTION_ARGS);
extern Datum enum_cmp(PG_FUNCTION_ARGS);
extern Datum enum_smaller(PG_FUNCTION_ARGS);
extern Datum enum_larger(PG_FUNCTION_ARGS);
extern Datum enum_first(PG_FUNCTION_ARGS);
extern Datum enum_last(PG_FUNCTION_ARGS);
extern Datum enum_range_bounds(PG_FUNCTION_ARGS);
extern Datum enum_range_all(PG_FUNCTION_ARGS);

/* int.c */
extern Datum int2in(PG_FUNCTION_ARGS);
extern Datum int2out(PG_FUNCTION_ARGS);
extern Datum int2recv(PG_FUNCTION_ARGS);
extern Datum int2send(PG_FUNCTION_ARGS);
extern Datum int2vectorin(PG_FUNCTION_ARGS);
extern Datum int2vectorout(PG_FUNCTION_ARGS);
extern Datum int2vectorrecv(PG_FUNCTION_ARGS);
extern Datum int2vectorsend(PG_FUNCTION_ARGS);
extern Datum int2vectoreq(PG_FUNCTION_ARGS);
extern Datum int4in(PG_FUNCTION_ARGS);
extern Datum int4out(PG_FUNCTION_ARGS);
extern Datum int4recv(PG_FUNCTION_ARGS);
extern Datum int4send(PG_FUNCTION_ARGS);
extern Datum i2toi4(PG_FUNCTION_ARGS);
extern Datum i4toi2(PG_FUNCTION_ARGS);
extern Datum int4_bool(PG_FUNCTION_ARGS);
extern Datum bool_int4(PG_FUNCTION_ARGS);
extern Datum int4eq(PG_FUNCTION_ARGS);
extern Datum int4ne(PG_FUNCTION_ARGS);
extern Datum int4lt(PG_FUNCTION_ARGS);
extern Datum int4le(PG_FUNCTION_ARGS);
extern Datum int4gt(PG_FUNCTION_ARGS);
extern Datum int4ge(PG_FUNCTION_ARGS);
extern Datum int2eq(PG_FUNCTION_ARGS);
extern Datum int2ne(PG_FUNCTION_ARGS);
extern Datum int2lt(PG_FUNCTION_ARGS);
extern Datum int2le(PG_FUNCTION_ARGS);
extern Datum int2gt(PG_FUNCTION_ARGS);
extern Datum int2ge(PG_FUNCTION_ARGS);
extern Datum int24eq(PG_FUNCTION_ARGS);
extern Datum int24ne(PG_FUNCTION_ARGS);
extern Datum int24lt(PG_FUNCTION_ARGS);
extern Datum int24le(PG_FUNCTION_ARGS);
extern Datum int24gt(PG_FUNCTION_ARGS);
extern Datum int24ge(PG_FUNCTION_ARGS);
extern Datum int42eq(PG_FUNCTION_ARGS);
extern Datum int42ne(PG_FUNCTION_ARGS);
extern Datum int42lt(PG_FUNCTION_ARGS);
extern Datum int42le(PG_FUNCTION_ARGS);
extern Datum int42gt(PG_FUNCTION_ARGS);
extern Datum int42ge(PG_FUNCTION_ARGS);
extern Datum int4um(PG_FUNCTION_ARGS);
extern Datum int4up(PG_FUNCTION_ARGS);
extern Datum int4pl(PG_FUNCTION_ARGS);
extern Datum int4mi(PG_FUNCTION_ARGS);
extern Datum int4mul(PG_FUNCTION_ARGS);
extern Datum int4div(PG_FUNCTION_ARGS);
extern Datum int4abs(PG_FUNCTION_ARGS);
extern Datum int4inc(PG_FUNCTION_ARGS);
extern Datum int2um(PG_FUNCTION_ARGS);
extern Datum int2up(PG_FUNCTION_ARGS);
extern Datum int2pl(PG_FUNCTION_ARGS);
extern Datum int2mi(PG_FUNCTION_ARGS);
extern Datum int2mul(PG_FUNCTION_ARGS);
extern Datum int2div(PG_FUNCTION_ARGS);
extern Datum int2abs(PG_FUNCTION_ARGS);
extern Datum int24pl(PG_FUNCTION_ARGS);
extern Datum int24mi(PG_FUNCTION_ARGS);
extern Datum int24mul(PG_FUNCTION_ARGS);
extern Datum int24div(PG_FUNCTION_ARGS);
extern Datum int42pl(PG_FUNCTION_ARGS);
extern Datum int42mi(PG_FUNCTION_ARGS);
extern Datum int42mul(PG_FUNCTION_ARGS);
extern Datum int42div(PG_FUNCTION_ARGS);
extern Datum int4mod(PG_FUNCTION_ARGS);
extern Datum int2mod(PG_FUNCTION_ARGS);
extern Datum int2larger(PG_FUNCTION_ARGS);
extern Datum int2smaller(PG_FUNCTION_ARGS);
extern Datum int4larger(PG_FUNCTION_ARGS);
extern Datum int4smaller(PG_FUNCTION_ARGS);

extern Datum int4and(PG_FUNCTION_ARGS);
extern Datum int4or(PG_FUNCTION_ARGS);
extern Datum int4xor(PG_FUNCTION_ARGS);
extern Datum int4not(PG_FUNCTION_ARGS);
extern Datum int4shl(PG_FUNCTION_ARGS);
extern Datum int4shr(PG_FUNCTION_ARGS);
extern Datum int2and(PG_FUNCTION_ARGS);
extern Datum int2or(PG_FUNCTION_ARGS);
extern Datum int2xor(PG_FUNCTION_ARGS);
extern Datum int2not(PG_FUNCTION_ARGS);
extern Datum int2shl(PG_FUNCTION_ARGS);
extern Datum int2shr(PG_FUNCTION_ARGS);
extern Datum generate_series_int4(PG_FUNCTION_ARGS);
extern Datum generate_series_step_int4(PG_FUNCTION_ARGS);
extern int2vector *buildint2vector(const int16 *int2s, int n);

/* name.c */
extern Datum namein(PG_FUNCTION_ARGS);
extern Datum nameout(PG_FUNCTION_ARGS);
extern Datum namerecv(PG_FUNCTION_ARGS);
extern Datum namesend(PG_FUNCTION_ARGS);
extern Datum nameeq(PG_FUNCTION_ARGS);
extern Datum namene(PG_FUNCTION_ARGS);
extern Datum namelt(PG_FUNCTION_ARGS);
extern Datum namele(PG_FUNCTION_ARGS);
extern Datum namegt(PG_FUNCTION_ARGS);
extern Datum namege(PG_FUNCTION_ARGS);
extern int	namecpy(Name n1, Name n2);
extern int	namestrcpy(Name name, const char *str);
extern int	namestrcmp(Name name, const char *str);
extern Datum current_user(PG_FUNCTION_ARGS);
extern Datum session_user(PG_FUNCTION_ARGS);
extern Datum current_schema(PG_FUNCTION_ARGS);
extern Datum current_schemas(PG_FUNCTION_ARGS);

/* numutils.c */
extern int32 pg_atoi(const char *s, int size, int c);
extern void pg_itoa(int16 i, char *a);
extern void pg_ltoa(int32 l, char *a);
extern void pg_lltoa(int64 ll, char *a);
extern char *pg_ltostr_zeropad(char *str, int32 value, int32 minwidth);
extern char *pg_ltostr(char *str, int32 value);
extern uint64 pg_strtouint64(const char *str, char **endptr, int base);

/*
 *		Per-opclass comparison functions for new btrees.  These are
 *		stored in pg_amproc; most are defined in access/nbtree/nbtcompare.c
 */
extern Datum btboolcmp(PG_FUNCTION_ARGS);
extern Datum btint2cmp(PG_FUNCTION_ARGS);
extern Datum btint4cmp(PG_FUNCTION_ARGS);
extern Datum btint8cmp(PG_FUNCTION_ARGS);
extern Datum btfloat4cmp(PG_FUNCTION_ARGS);
extern Datum btfloat8cmp(PG_FUNCTION_ARGS);
extern Datum btint48cmp(PG_FUNCTION_ARGS);
extern Datum btint84cmp(PG_FUNCTION_ARGS);
extern Datum btint24cmp(PG_FUNCTION_ARGS);
extern Datum btint42cmp(PG_FUNCTION_ARGS);
extern Datum btint28cmp(PG_FUNCTION_ARGS);
extern Datum btint82cmp(PG_FUNCTION_ARGS);
extern Datum btfloat48cmp(PG_FUNCTION_ARGS);
extern Datum btfloat84cmp(PG_FUNCTION_ARGS);
extern Datum btoidcmp(PG_FUNCTION_ARGS);
extern Datum btoidvectorcmp(PG_FUNCTION_ARGS);
extern Datum btabstimecmp(PG_FUNCTION_ARGS);
extern Datum btreltimecmp(PG_FUNCTION_ARGS);
extern Datum bttintervalcmp(PG_FUNCTION_ARGS);
extern Datum btcharcmp(PG_FUNCTION_ARGS);
extern Datum btnamecmp(PG_FUNCTION_ARGS);
extern Datum bttextcmp(PG_FUNCTION_ARGS);
extern Datum bttextsortsupport(PG_FUNCTION_ARGS);

/*
 *		Per-opclass sort support functions for new btrees.  Like the
 *		functions above, these are stored in pg_amproc; most are defined in
 *		access/nbtree/nbtcompare.c
 */
extern Datum btint2sortsupport(PG_FUNCTION_ARGS);
extern Datum btint4sortsupport(PG_FUNCTION_ARGS);
extern Datum btint8sortsupport(PG_FUNCTION_ARGS);
extern Datum btfloat4sortsupport(PG_FUNCTION_ARGS);
extern Datum btfloat8sortsupport(PG_FUNCTION_ARGS);
extern Datum btoidsortsupport(PG_FUNCTION_ARGS);
extern Datum btnamesortsupport(PG_FUNCTION_ARGS);

/* float.c */
extern PGDLLIMPORT int extra_float_digits;

extern double get_float8_infinity(void);
extern float get_float4_infinity(void);
extern double get_float8_nan(void);
extern float get_float4_nan(void);
extern int	is_infinite(double val);
extern double float8in_internal(char *num, char **endptr_p,
				  const char *type_name, const char *orig_string);
extern char *float8out_internal(double num);
extern int	float4_cmp_internal(float4 a, float4 b);
extern int	float8_cmp_internal(float8 a, float8 b);

extern Datum float4in(PG_FUNCTION_ARGS);
extern Datum float4out(PG_FUNCTION_ARGS);
extern Datum float4recv(PG_FUNCTION_ARGS);
extern Datum float4send(PG_FUNCTION_ARGS);
extern Datum float8in(PG_FUNCTION_ARGS);
extern Datum float8out(PG_FUNCTION_ARGS);
extern Datum float8recv(PG_FUNCTION_ARGS);
extern Datum float8send(PG_FUNCTION_ARGS);
extern Datum float4abs(PG_FUNCTION_ARGS);
extern Datum float4um(PG_FUNCTION_ARGS);
extern Datum float4up(PG_FUNCTION_ARGS);
extern Datum float4larger(PG_FUNCTION_ARGS);
extern Datum float4smaller(PG_FUNCTION_ARGS);
extern Datum float8abs(PG_FUNCTION_ARGS);
extern Datum float8um(PG_FUNCTION_ARGS);
extern Datum float8up(PG_FUNCTION_ARGS);
extern Datum float8larger(PG_FUNCTION_ARGS);
extern Datum float8smaller(PG_FUNCTION_ARGS);
extern Datum float4pl(PG_FUNCTION_ARGS);
extern Datum float4mi(PG_FUNCTION_ARGS);
extern Datum float4mul(PG_FUNCTION_ARGS);
extern Datum float4div(PG_FUNCTION_ARGS);
extern Datum float8pl(PG_FUNCTION_ARGS);
extern Datum float8mi(PG_FUNCTION_ARGS);
extern Datum float8mul(PG_FUNCTION_ARGS);
extern Datum float8div(PG_FUNCTION_ARGS);
extern Datum float4eq(PG_FUNCTION_ARGS);
extern Datum float4ne(PG_FUNCTION_ARGS);
extern Datum float4lt(PG_FUNCTION_ARGS);
extern Datum float4le(PG_FUNCTION_ARGS);
extern Datum float4gt(PG_FUNCTION_ARGS);
extern Datum float4ge(PG_FUNCTION_ARGS);
extern Datum float8eq(PG_FUNCTION_ARGS);
extern Datum float8ne(PG_FUNCTION_ARGS);
extern Datum float8lt(PG_FUNCTION_ARGS);
extern Datum float8le(PG_FUNCTION_ARGS);
extern Datum float8gt(PG_FUNCTION_ARGS);
extern Datum float8ge(PG_FUNCTION_ARGS);
extern Datum ftod(PG_FUNCTION_ARGS);
extern Datum i4tod(PG_FUNCTION_ARGS);
extern Datum i2tod(PG_FUNCTION_ARGS);
extern Datum dtof(PG_FUNCTION_ARGS);
extern Datum dtoi4(PG_FUNCTION_ARGS);
extern Datum dtoi2(PG_FUNCTION_ARGS);
extern Datum i4tof(PG_FUNCTION_ARGS);
extern Datum i2tof(PG_FUNCTION_ARGS);
extern Datum ftoi4(PG_FUNCTION_ARGS);
extern Datum ftoi2(PG_FUNCTION_ARGS);
extern Datum dround(PG_FUNCTION_ARGS);
extern Datum dceil(PG_FUNCTION_ARGS);
extern Datum dfloor(PG_FUNCTION_ARGS);
extern Datum dsign(PG_FUNCTION_ARGS);
extern Datum dtrunc(PG_FUNCTION_ARGS);
extern Datum dsqrt(PG_FUNCTION_ARGS);
extern Datum dcbrt(PG_FUNCTION_ARGS);
extern Datum dpow(PG_FUNCTION_ARGS);
extern Datum dexp(PG_FUNCTION_ARGS);
extern Datum dlog1(PG_FUNCTION_ARGS);
extern Datum dlog10(PG_FUNCTION_ARGS);
extern Datum dacos(PG_FUNCTION_ARGS);
extern Datum dasin(PG_FUNCTION_ARGS);
extern Datum datan(PG_FUNCTION_ARGS);
extern Datum datan2(PG_FUNCTION_ARGS);
extern Datum dcos(PG_FUNCTION_ARGS);
extern Datum dcot(PG_FUNCTION_ARGS);
extern Datum dsin(PG_FUNCTION_ARGS);
extern Datum dtan(PG_FUNCTION_ARGS);
extern Datum dacosd(PG_FUNCTION_ARGS);
extern Datum dasind(PG_FUNCTION_ARGS);
extern Datum datand(PG_FUNCTION_ARGS);
extern Datum datan2d(PG_FUNCTION_ARGS);
extern Datum dcosd(PG_FUNCTION_ARGS);
extern Datum dcotd(PG_FUNCTION_ARGS);
extern Datum dsind(PG_FUNCTION_ARGS);
extern Datum dtand(PG_FUNCTION_ARGS);
extern Datum degrees(PG_FUNCTION_ARGS);
extern Datum dpi(PG_FUNCTION_ARGS);
extern Datum radians(PG_FUNCTION_ARGS);
extern Datum drandom(PG_FUNCTION_ARGS);
extern Datum setseed(PG_FUNCTION_ARGS);
extern Datum float8_combine(PG_FUNCTION_ARGS);
extern Datum float8_accum(PG_FUNCTION_ARGS);
extern Datum float4_accum(PG_FUNCTION_ARGS);
extern Datum float8_avg(PG_FUNCTION_ARGS);
extern Datum float8_var_pop(PG_FUNCTION_ARGS);
extern Datum float8_var_samp(PG_FUNCTION_ARGS);
extern Datum float8_stddev_pop(PG_FUNCTION_ARGS);
extern Datum float8_stddev_samp(PG_FUNCTION_ARGS);
extern Datum float8_regr_accum(PG_FUNCTION_ARGS);
extern Datum float8_regr_combine(PG_FUNCTION_ARGS);
extern Datum float8_regr_sxx(PG_FUNCTION_ARGS);
extern Datum float8_regr_syy(PG_FUNCTION_ARGS);
extern Datum float8_regr_sxy(PG_FUNCTION_ARGS);
extern Datum float8_regr_avgx(PG_FUNCTION_ARGS);
extern Datum float8_regr_avgy(PG_FUNCTION_ARGS);
extern Datum float8_covar_pop(PG_FUNCTION_ARGS);
extern Datum float8_covar_samp(PG_FUNCTION_ARGS);
extern Datum float8_corr(PG_FUNCTION_ARGS);
extern Datum float8_regr_r2(PG_FUNCTION_ARGS);
extern Datum float8_regr_slope(PG_FUNCTION_ARGS);
extern Datum float8_regr_intercept(PG_FUNCTION_ARGS);
extern Datum float48pl(PG_FUNCTION_ARGS);
extern Datum float48mi(PG_FUNCTION_ARGS);
extern Datum float48mul(PG_FUNCTION_ARGS);
extern Datum float48div(PG_FUNCTION_ARGS);
extern Datum float84pl(PG_FUNCTION_ARGS);
extern Datum float84mi(PG_FUNCTION_ARGS);
extern Datum float84mul(PG_FUNCTION_ARGS);
extern Datum float84div(PG_FUNCTION_ARGS);
extern Datum float48eq(PG_FUNCTION_ARGS);
extern Datum float48ne(PG_FUNCTION_ARGS);
extern Datum float48lt(PG_FUNCTION_ARGS);
extern Datum float48le(PG_FUNCTION_ARGS);
extern Datum float48gt(PG_FUNCTION_ARGS);
extern Datum float48ge(PG_FUNCTION_ARGS);
extern Datum float84eq(PG_FUNCTION_ARGS);
extern Datum float84ne(PG_FUNCTION_ARGS);
extern Datum float84lt(PG_FUNCTION_ARGS);
extern Datum float84le(PG_FUNCTION_ARGS);
extern Datum float84gt(PG_FUNCTION_ARGS);
extern Datum float84ge(PG_FUNCTION_ARGS);
extern Datum width_bucket_float8(PG_FUNCTION_ARGS);

/* dbsize.c */
extern Datum pg_tablespace_size_oid(PG_FUNCTION_ARGS);
extern Datum pg_tablespace_size_name(PG_FUNCTION_ARGS);
extern Datum pg_database_size_oid(PG_FUNCTION_ARGS);
extern Datum pg_database_size_name(PG_FUNCTION_ARGS);
extern Datum pg_relation_size(PG_FUNCTION_ARGS);
extern Datum pg_total_relation_size(PG_FUNCTION_ARGS);
extern Datum pg_size_pretty(PG_FUNCTION_ARGS);
extern Datum pg_size_pretty_numeric(PG_FUNCTION_ARGS);
extern Datum pg_size_bytes(PG_FUNCTION_ARGS);
extern Datum pg_table_size(PG_FUNCTION_ARGS);
extern Datum pg_indexes_size(PG_FUNCTION_ARGS);
extern Datum pg_relation_filenode(PG_FUNCTION_ARGS);
extern Datum pg_filenode_relation(PG_FUNCTION_ARGS);
extern Datum pg_relation_filepath(PG_FUNCTION_ARGS);

/* genfile.c */
extern Datum pg_stat_file(PG_FUNCTION_ARGS);
extern Datum pg_stat_file_1arg(PG_FUNCTION_ARGS);
extern Datum pg_read_file(PG_FUNCTION_ARGS);
extern Datum pg_read_file_off_len(PG_FUNCTION_ARGS);
extern Datum pg_read_file_all(PG_FUNCTION_ARGS);
extern Datum pg_read_binary_file(PG_FUNCTION_ARGS);
extern Datum pg_read_binary_file_off_len(PG_FUNCTION_ARGS);
extern Datum pg_read_binary_file_all(PG_FUNCTION_ARGS);
extern Datum pg_ls_dir(PG_FUNCTION_ARGS);
extern Datum pg_ls_dir_1arg(PG_FUNCTION_ARGS);

/* misc.c */
extern Datum pg_num_nulls(PG_FUNCTION_ARGS);
extern Datum pg_num_nonnulls(PG_FUNCTION_ARGS);
extern Datum current_database(PG_FUNCTION_ARGS);
extern Datum current_query(PG_FUNCTION_ARGS);
extern Datum pg_cancel_backend(PG_FUNCTION_ARGS);
extern Datum pg_terminate_backend(PG_FUNCTION_ARGS);
extern Datum pg_reload_conf(PG_FUNCTION_ARGS);
extern Datum pg_tablespace_databases(PG_FUNCTION_ARGS);
extern Datum pg_tablespace_location(PG_FUNCTION_ARGS);
extern Datum pg_rotate_logfile(PG_FUNCTION_ARGS);
extern Datum pg_sleep(PG_FUNCTION_ARGS);
extern Datum pg_get_keywords(PG_FUNCTION_ARGS);
extern Datum pg_typeof(PG_FUNCTION_ARGS);
extern Datum pg_collation_for(PG_FUNCTION_ARGS);
extern Datum pg_relation_is_updatable(PG_FUNCTION_ARGS);
extern Datum pg_column_is_updatable(PG_FUNCTION_ARGS);
extern Datum parse_ident(PG_FUNCTION_ARGS);

/* oid.c */
extern Datum oidin(PG_FUNCTION_ARGS);
extern Datum oidout(PG_FUNCTION_ARGS);
extern Datum oidrecv(PG_FUNCTION_ARGS);
extern Datum oidsend(PG_FUNCTION_ARGS);
extern Datum oideq(PG_FUNCTION_ARGS);
extern Datum oidne(PG_FUNCTION_ARGS);
extern Datum oidlt(PG_FUNCTION_ARGS);
extern Datum oidle(PG_FUNCTION_ARGS);
extern Datum oidge(PG_FUNCTION_ARGS);
extern Datum oidgt(PG_FUNCTION_ARGS);
extern Datum oidlarger(PG_FUNCTION_ARGS);
extern Datum oidsmaller(PG_FUNCTION_ARGS);
extern Datum oidvectorin(PG_FUNCTION_ARGS);
extern Datum oidvectorout(PG_FUNCTION_ARGS);
extern Datum oidvectorrecv(PG_FUNCTION_ARGS);
extern Datum oidvectorsend(PG_FUNCTION_ARGS);
extern Datum oidvectoreq(PG_FUNCTION_ARGS);
extern Datum oidvectorne(PG_FUNCTION_ARGS);
extern Datum oidvectorlt(PG_FUNCTION_ARGS);
extern Datum oidvectorle(PG_FUNCTION_ARGS);
extern Datum oidvectorge(PG_FUNCTION_ARGS);
extern Datum oidvectorgt(PG_FUNCTION_ARGS);
extern oidvector *buildoidvector(const Oid *oids, int n);
extern Oid	oidparse(Node *node);

/* orderedsetaggs.c */
extern Datum ordered_set_transition(PG_FUNCTION_ARGS);
extern Datum ordered_set_transition_multi(PG_FUNCTION_ARGS);
extern Datum percentile_disc_final(PG_FUNCTION_ARGS);
extern Datum percentile_cont_float8_final(PG_FUNCTION_ARGS);
extern Datum percentile_cont_interval_final(PG_FUNCTION_ARGS);
extern Datum percentile_disc_multi_final(PG_FUNCTION_ARGS);
extern Datum percentile_cont_float8_multi_final(PG_FUNCTION_ARGS);
extern Datum percentile_cont_interval_multi_final(PG_FUNCTION_ARGS);
extern Datum mode_final(PG_FUNCTION_ARGS);
extern Datum hypothetical_rank_final(PG_FUNCTION_ARGS);
extern Datum hypothetical_percent_rank_final(PG_FUNCTION_ARGS);
extern Datum hypothetical_cume_dist_final(PG_FUNCTION_ARGS);
extern Datum hypothetical_dense_rank_final(PG_FUNCTION_ARGS);

/* pseudotypes.c */
extern Datum cstring_in(PG_FUNCTION_ARGS);
extern Datum cstring_out(PG_FUNCTION_ARGS);
extern Datum cstring_recv(PG_FUNCTION_ARGS);
extern Datum cstring_send(PG_FUNCTION_ARGS);
extern Datum any_in(PG_FUNCTION_ARGS);
extern Datum any_out(PG_FUNCTION_ARGS);
extern Datum anyarray_in(PG_FUNCTION_ARGS);
extern Datum anyarray_out(PG_FUNCTION_ARGS);
extern Datum anyarray_recv(PG_FUNCTION_ARGS);
extern Datum anyarray_send(PG_FUNCTION_ARGS);
extern Datum anynonarray_in(PG_FUNCTION_ARGS);
extern Datum anynonarray_out(PG_FUNCTION_ARGS);
extern Datum anyenum_in(PG_FUNCTION_ARGS);
extern Datum anyenum_out(PG_FUNCTION_ARGS);
extern Datum anyrange_in(PG_FUNCTION_ARGS);
extern Datum anyrange_out(PG_FUNCTION_ARGS);
extern Datum void_in(PG_FUNCTION_ARGS);
extern Datum void_out(PG_FUNCTION_ARGS);
extern Datum void_recv(PG_FUNCTION_ARGS);
extern Datum void_send(PG_FUNCTION_ARGS);
extern Datum trigger_in(PG_FUNCTION_ARGS);
extern Datum trigger_out(PG_FUNCTION_ARGS);
extern Datum event_trigger_in(PG_FUNCTION_ARGS);
extern Datum event_trigger_out(PG_FUNCTION_ARGS);
extern Datum language_handler_in(PG_FUNCTION_ARGS);
extern Datum language_handler_out(PG_FUNCTION_ARGS);
extern Datum fdw_handler_in(PG_FUNCTION_ARGS);
extern Datum fdw_handler_out(PG_FUNCTION_ARGS);
extern Datum index_am_handler_in(PG_FUNCTION_ARGS);
extern Datum index_am_handler_out(PG_FUNCTION_ARGS);
extern Datum tsm_handler_in(PG_FUNCTION_ARGS);
extern Datum tsm_handler_out(PG_FUNCTION_ARGS);
extern Datum internal_in(PG_FUNCTION_ARGS);
extern Datum internal_out(PG_FUNCTION_ARGS);
extern Datum opaque_in(PG_FUNCTION_ARGS);
extern Datum opaque_out(PG_FUNCTION_ARGS);
extern Datum anyelement_in(PG_FUNCTION_ARGS);
extern Datum anyelement_out(PG_FUNCTION_ARGS);
extern Datum shell_in(PG_FUNCTION_ARGS);
extern Datum shell_out(PG_FUNCTION_ARGS);
extern Datum pg_node_tree_in(PG_FUNCTION_ARGS);
extern Datum pg_node_tree_out(PG_FUNCTION_ARGS);
extern Datum pg_node_tree_recv(PG_FUNCTION_ARGS);
extern Datum pg_node_tree_send(PG_FUNCTION_ARGS);
extern Datum pg_ddl_command_in(PG_FUNCTION_ARGS);
extern Datum pg_ddl_command_out(PG_FUNCTION_ARGS);
extern Datum pg_ddl_command_recv(PG_FUNCTION_ARGS);
extern Datum pg_ddl_command_send(PG_FUNCTION_ARGS);

/* regexp.c */
extern Datum nameregexeq(PG_FUNCTION_ARGS);
extern Datum nameregexne(PG_FUNCTION_ARGS);
extern Datum textregexeq(PG_FUNCTION_ARGS);
extern Datum textregexne(PG_FUNCTION_ARGS);
extern Datum nameicregexeq(PG_FUNCTION_ARGS);
extern Datum nameicregexne(PG_FUNCTION_ARGS);
extern Datum texticregexeq(PG_FUNCTION_ARGS);
extern Datum texticregexne(PG_FUNCTION_ARGS);
extern Datum textregexsubstr(PG_FUNCTION_ARGS);
extern Datum textregexreplace_noopt(PG_FUNCTION_ARGS);
extern Datum textregexreplace(PG_FUNCTION_ARGS);
extern Datum similar_escape(PG_FUNCTION_ARGS);
extern Datum regexp_matches(PG_FUNCTION_ARGS);
extern Datum regexp_matches_no_flags(PG_FUNCTION_ARGS);
extern Datum regexp_split_to_table(PG_FUNCTION_ARGS);
extern Datum regexp_split_to_table_no_flags(PG_FUNCTION_ARGS);
extern Datum regexp_split_to_array(PG_FUNCTION_ARGS);
extern Datum regexp_split_to_array_no_flags(PG_FUNCTION_ARGS);
extern char *regexp_fixed_prefix(text *text_re, bool case_insensitive,
					Oid collation, bool *exact);

/* regproc.c */
extern Datum regprocin(PG_FUNCTION_ARGS);
extern Datum regprocout(PG_FUNCTION_ARGS);
extern Datum to_regproc(PG_FUNCTION_ARGS);
extern Datum to_regprocedure(PG_FUNCTION_ARGS);
extern Datum regprocrecv(PG_FUNCTION_ARGS);
extern Datum regprocsend(PG_FUNCTION_ARGS);
extern Datum regprocedurein(PG_FUNCTION_ARGS);
extern Datum regprocedureout(PG_FUNCTION_ARGS);
extern Datum regprocedurerecv(PG_FUNCTION_ARGS);
extern Datum regproceduresend(PG_FUNCTION_ARGS);
extern Datum regoperin(PG_FUNCTION_ARGS);
extern Datum regoperout(PG_FUNCTION_ARGS);
extern Datum regoperrecv(PG_FUNCTION_ARGS);
extern Datum regopersend(PG_FUNCTION_ARGS);
extern Datum to_regoper(PG_FUNCTION_ARGS);
extern Datum to_regoperator(PG_FUNCTION_ARGS);
extern Datum regoperatorin(PG_FUNCTION_ARGS);
extern Datum regoperatorout(PG_FUNCTION_ARGS);
extern Datum regoperatorrecv(PG_FUNCTION_ARGS);
extern Datum regoperatorsend(PG_FUNCTION_ARGS);
extern Datum regclassin(PG_FUNCTION_ARGS);
extern Datum regclassout(PG_FUNCTION_ARGS);
extern Datum regclassrecv(PG_FUNCTION_ARGS);
extern Datum regclasssend(PG_FUNCTION_ARGS);
extern Datum to_regclass(PG_FUNCTION_ARGS);
extern Datum regtypein(PG_FUNCTION_ARGS);
extern Datum regtypeout(PG_FUNCTION_ARGS);
extern Datum regtyperecv(PG_FUNCTION_ARGS);
extern Datum regtypesend(PG_FUNCTION_ARGS);
extern Datum to_regtype(PG_FUNCTION_ARGS);
extern Datum regrolein(PG_FUNCTION_ARGS);
extern Datum regroleout(PG_FUNCTION_ARGS);
extern Datum regrolerecv(PG_FUNCTION_ARGS);
extern Datum regrolesend(PG_FUNCTION_ARGS);
extern Datum to_regrole(PG_FUNCTION_ARGS);
extern Datum regnamespacein(PG_FUNCTION_ARGS);
extern Datum regnamespaceout(PG_FUNCTION_ARGS);
extern Datum regnamespacerecv(PG_FUNCTION_ARGS);
extern Datum regnamespacesend(PG_FUNCTION_ARGS);
extern Datum to_regnamespace(PG_FUNCTION_ARGS);
extern Datum regconfigin(PG_FUNCTION_ARGS);
extern Datum regconfigout(PG_FUNCTION_ARGS);
extern Datum regconfigrecv(PG_FUNCTION_ARGS);
extern Datum regconfigsend(PG_FUNCTION_ARGS);
extern Datum regdictionaryin(PG_FUNCTION_ARGS);
extern Datum regdictionaryout(PG_FUNCTION_ARGS);
extern Datum regdictionaryrecv(PG_FUNCTION_ARGS);
extern Datum regdictionarysend(PG_FUNCTION_ARGS);
extern Datum text_regclass(PG_FUNCTION_ARGS);
extern List *stringToQualifiedNameList(const char *string);
extern char *format_procedure(Oid procedure_oid);
extern char *format_procedure_qualified(Oid procedure_oid);
extern void format_procedure_parts(Oid operator_oid, List **objnames,
					   List **objargs);
extern char *format_operator(Oid operator_oid);
extern char *format_operator_qualified(Oid operator_oid);
extern void format_operator_parts(Oid operator_oid, List **objnames,
					  List **objargs);

/* rowtypes.c */
extern Datum record_in(PG_FUNCTION_ARGS);
extern Datum record_out(PG_FUNCTION_ARGS);
extern Datum record_recv(PG_FUNCTION_ARGS);
extern Datum record_send(PG_FUNCTION_ARGS);
extern Datum record_eq(PG_FUNCTION_ARGS);
extern Datum record_ne(PG_FUNCTION_ARGS);
extern Datum record_lt(PG_FUNCTION_ARGS);
extern Datum record_gt(PG_FUNCTION_ARGS);
extern Datum record_le(PG_FUNCTION_ARGS);
extern Datum record_ge(PG_FUNCTION_ARGS);
extern Datum btrecordcmp(PG_FUNCTION_ARGS);
extern Datum record_image_eq(PG_FUNCTION_ARGS);
extern Datum record_image_ne(PG_FUNCTION_ARGS);
extern Datum record_image_lt(PG_FUNCTION_ARGS);
extern Datum record_image_gt(PG_FUNCTION_ARGS);
extern Datum record_image_le(PG_FUNCTION_ARGS);
extern Datum record_image_ge(PG_FUNCTION_ARGS);
extern Datum btrecordimagecmp(PG_FUNCTION_ARGS);

/* ruleutils.c */
extern bool quote_all_identifiers;
extern Datum pg_get_ruledef(PG_FUNCTION_ARGS);
extern Datum pg_get_ruledef_ext(PG_FUNCTION_ARGS);
extern Datum pg_get_viewdef(PG_FUNCTION_ARGS);
extern Datum pg_get_viewdef_ext(PG_FUNCTION_ARGS);
extern Datum pg_get_viewdef_wrap(PG_FUNCTION_ARGS);
extern Datum pg_get_viewdef_name(PG_FUNCTION_ARGS);
extern Datum pg_get_viewdef_name_ext(PG_FUNCTION_ARGS);
extern Datum pg_get_indexdef(PG_FUNCTION_ARGS);
extern Datum pg_get_indexdef_ext(PG_FUNCTION_ARGS);
extern Datum pg_get_triggerdef(PG_FUNCTION_ARGS);
extern Datum pg_get_triggerdef_ext(PG_FUNCTION_ARGS);
extern Datum pg_get_constraintdef(PG_FUNCTION_ARGS);
extern Datum pg_get_constraintdef_ext(PG_FUNCTION_ARGS);
extern Datum pg_get_expr(PG_FUNCTION_ARGS);
extern Datum pg_get_expr_ext(PG_FUNCTION_ARGS);
extern Datum pg_get_userbyid(PG_FUNCTION_ARGS);
extern Datum pg_get_serial_sequence(PG_FUNCTION_ARGS);
extern Datum pg_get_functiondef(PG_FUNCTION_ARGS);
extern Datum pg_get_function_arguments(PG_FUNCTION_ARGS);
extern Datum pg_get_function_identity_arguments(PG_FUNCTION_ARGS);
extern Datum pg_get_function_result(PG_FUNCTION_ARGS);
extern Datum pg_get_function_arg_default(PG_FUNCTION_ARGS);
extern const char *quote_identifier(const char *ident);
extern char *quote_qualified_identifier(const char *qualifier,
						   const char *ident);
extern void generate_operator_clause(fmStringInfo buf,
						 const char *leftop, Oid leftoptype,
						 Oid opoid,
						 const char *rightop, Oid rightoptype);


/* tid.c */
extern Datum tidin(PG_FUNCTION_ARGS);
extern Datum tidout(PG_FUNCTION_ARGS);
extern Datum tidrecv(PG_FUNCTION_ARGS);
extern Datum tidsend(PG_FUNCTION_ARGS);
extern Datum tideq(PG_FUNCTION_ARGS);
extern Datum tidne(PG_FUNCTION_ARGS);
extern Datum tidlt(PG_FUNCTION_ARGS);
extern Datum tidle(PG_FUNCTION_ARGS);
extern Datum tidgt(PG_FUNCTION_ARGS);
extern Datum tidge(PG_FUNCTION_ARGS);
extern Datum bttidcmp(PG_FUNCTION_ARGS);
extern Datum tidlarger(PG_FUNCTION_ARGS);
extern Datum tidsmaller(PG_FUNCTION_ARGS);
extern Datum currtid_byreloid(PG_FUNCTION_ARGS);
extern Datum currtid_byrelname(PG_FUNCTION_ARGS);

/* varchar.c */
extern Datum bpcharin(PG_FUNCTION_ARGS);
extern Datum bpcharout(PG_FUNCTION_ARGS);
extern Datum bpcharrecv(PG_FUNCTION_ARGS);
extern Datum bpcharsend(PG_FUNCTION_ARGS);
extern Datum bpchartypmodin(PG_FUNCTION_ARGS);
extern Datum bpchartypmodout(PG_FUNCTION_ARGS);
extern Datum bpchar(PG_FUNCTION_ARGS);
extern Datum char_bpchar(PG_FUNCTION_ARGS);
extern Datum name_bpchar(PG_FUNCTION_ARGS);
extern Datum bpchar_name(PG_FUNCTION_ARGS);
extern Datum bpchareq(PG_FUNCTION_ARGS);
extern Datum bpcharne(PG_FUNCTION_ARGS);
extern Datum bpcharlt(PG_FUNCTION_ARGS);
extern Datum bpcharle(PG_FUNCTION_ARGS);
extern Datum bpchargt(PG_FUNCTION_ARGS);
extern Datum bpcharge(PG_FUNCTION_ARGS);
extern Datum bpcharcmp(PG_FUNCTION_ARGS);
extern Datum bpchar_sortsupport(PG_FUNCTION_ARGS);
extern Datum bpchar_larger(PG_FUNCTION_ARGS);
extern Datum bpchar_smaller(PG_FUNCTION_ARGS);
extern int	bpchartruelen(char *s, int len);
extern Datum bpcharlen(PG_FUNCTION_ARGS);
extern Datum bpcharoctetlen(PG_FUNCTION_ARGS);
extern Datum hashbpchar(PG_FUNCTION_ARGS);
extern Datum bpchar_pattern_lt(PG_FUNCTION_ARGS);
extern Datum bpchar_pattern_le(PG_FUNCTION_ARGS);
extern Datum bpchar_pattern_gt(PG_FUNCTION_ARGS);
extern Datum bpchar_pattern_ge(PG_FUNCTION_ARGS);
extern Datum btbpchar_pattern_cmp(PG_FUNCTION_ARGS);
extern Datum btbpchar_pattern_sortsupport(PG_FUNCTION_ARGS);

extern Datum varcharin(PG_FUNCTION_ARGS);
extern Datum varcharout(PG_FUNCTION_ARGS);
extern Datum varcharrecv(PG_FUNCTION_ARGS);
extern Datum varcharsend(PG_FUNCTION_ARGS);
extern Datum varchartypmodin(PG_FUNCTION_ARGS);
extern Datum varchartypmodout(PG_FUNCTION_ARGS);
extern Datum varchar_transform(PG_FUNCTION_ARGS);
extern Datum varchar(PG_FUNCTION_ARGS);

/* varlena.c */
extern text *cstring_to_text(const char *s);
extern text *cstring_to_text_with_len(const char *s, int len);
extern char *text_to_cstring(const text *t);
extern void text_to_cstring_buffer(const text *src, char *dst, size_t dst_len);

#define CStringGetTextDatum(s) PointerGetDatum(cstring_to_text(s))
#define TextDatumGetCString(d) text_to_cstring((text *) DatumGetPointer(d))

extern Datum textin(PG_FUNCTION_ARGS);
extern Datum textout(PG_FUNCTION_ARGS);
extern Datum textrecv(PG_FUNCTION_ARGS);
extern Datum textsend(PG_FUNCTION_ARGS);
extern Datum textcat(PG_FUNCTION_ARGS);
extern Datum texteq(PG_FUNCTION_ARGS);
extern Datum textne(PG_FUNCTION_ARGS);
extern Datum text_lt(PG_FUNCTION_ARGS);
extern Datum text_le(PG_FUNCTION_ARGS);
extern Datum text_gt(PG_FUNCTION_ARGS);
extern Datum text_ge(PG_FUNCTION_ARGS);
extern Datum text_larger(PG_FUNCTION_ARGS);
extern Datum text_smaller(PG_FUNCTION_ARGS);
extern Datum text_pattern_lt(PG_FUNCTION_ARGS);
extern Datum text_pattern_le(PG_FUNCTION_ARGS);
extern Datum text_pattern_gt(PG_FUNCTION_ARGS);
extern Datum text_pattern_ge(PG_FUNCTION_ARGS);
extern Datum bttext_pattern_cmp(PG_FUNCTION_ARGS);
extern Datum bttext_pattern_sortsupport(PG_FUNCTION_ARGS);
extern Datum textlen(PG_FUNCTION_ARGS);
extern Datum textoctetlen(PG_FUNCTION_ARGS);
extern Datum textpos(PG_FUNCTION_ARGS);
extern Datum text_substr(PG_FUNCTION_ARGS);
extern Datum text_substr_no_len(PG_FUNCTION_ARGS);
extern Datum textoverlay(PG_FUNCTION_ARGS);
extern Datum textoverlay_no_len(PG_FUNCTION_ARGS);
extern Datum name_text(PG_FUNCTION_ARGS);
extern Datum text_name(PG_FUNCTION_ARGS);
extern int	varstr_cmp(char *arg1, int len1, char *arg2, int len2, Oid collid);
extern void varstr_sortsupport(SortSupport ssup, Oid collid, bool bpchar);
extern int varstr_levenshtein(const char *source, int slen,
				   const char *target, int tlen,
				   int ins_c, int del_c, int sub_c,
				   bool trusted);
extern int varstr_levenshtein_less_equal(const char *source, int slen,
							  const char *target, int tlen,
							  int ins_c, int del_c, int sub_c,
							  int max_d, bool trusted);
extern List *textToQualifiedNameList(text *textval);
extern bool SplitIdentifierString(char *rawstring, char separator,
					  List **namelist);
extern bool SplitDirectoriesString(char *rawstring, char separator,
					   List **namelist);
extern bool SplitGUCList(char *rawstring, char separator,
			 List **namelist);
extern Datum replace_text(PG_FUNCTION_ARGS);
extern text *replace_text_regexp(text *src_text, void *regexp,
					text *replace_text, bool glob);
extern Datum split_text(PG_FUNCTION_ARGS);
extern Datum text_to_array(PG_FUNCTION_ARGS);
extern Datum array_to_text(PG_FUNCTION_ARGS);
extern Datum text_to_array_null(PG_FUNCTION_ARGS);
extern Datum array_to_text_null(PG_FUNCTION_ARGS);
extern Datum to_hex32(PG_FUNCTION_ARGS);
extern Datum to_hex64(PG_FUNCTION_ARGS);
extern Datum md5_text(PG_FUNCTION_ARGS);
extern Datum md5_bytea(PG_FUNCTION_ARGS);

extern Datum unknownin(PG_FUNCTION_ARGS);
extern Datum unknownout(PG_FUNCTION_ARGS);
extern Datum unknownrecv(PG_FUNCTION_ARGS);
extern Datum unknownsend(PG_FUNCTION_ARGS);

extern Datum pg_column_size(PG_FUNCTION_ARGS);

extern Datum bytea_string_agg_transfn(PG_FUNCTION_ARGS);
extern Datum bytea_string_agg_finalfn(PG_FUNCTION_ARGS);
extern Datum string_agg_transfn(PG_FUNCTION_ARGS);
extern Datum string_agg_finalfn(PG_FUNCTION_ARGS);

extern Datum text_concat(PG_FUNCTION_ARGS);
extern Datum text_concat_ws(PG_FUNCTION_ARGS);
extern Datum text_left(PG_FUNCTION_ARGS);
extern Datum text_right(PG_FUNCTION_ARGS);
extern Datum text_reverse(PG_FUNCTION_ARGS);
extern Datum text_format(PG_FUNCTION_ARGS);
extern Datum text_format_nv(PG_FUNCTION_ARGS);

/* version.c */
extern Datum pgsql_version(PG_FUNCTION_ARGS);

/* xid.c */
extern Datum xidin(PG_FUNCTION_ARGS);
extern Datum xidout(PG_FUNCTION_ARGS);
extern Datum xidrecv(PG_FUNCTION_ARGS);
extern Datum xidsend(PG_FUNCTION_ARGS);
extern Datum xideq(PG_FUNCTION_ARGS);
extern Datum xidneq(PG_FUNCTION_ARGS);
extern Datum xid_age(PG_FUNCTION_ARGS);
extern Datum mxid_age(PG_FUNCTION_ARGS);
extern int	xidComparator(const void *arg1, const void *arg2);
extern Datum cidin(PG_FUNCTION_ARGS);
extern Datum cidout(PG_FUNCTION_ARGS);
extern Datum cidrecv(PG_FUNCTION_ARGS);
extern Datum cidsend(PG_FUNCTION_ARGS);
extern Datum cideq(PG_FUNCTION_ARGS);

/* like.c */
extern Datum namelike(PG_FUNCTION_ARGS);
extern Datum namenlike(PG_FUNCTION_ARGS);
extern Datum nameiclike(PG_FUNCTION_ARGS);
extern Datum nameicnlike(PG_FUNCTION_ARGS);
extern Datum textlike(PG_FUNCTION_ARGS);
extern Datum textnlike(PG_FUNCTION_ARGS);
extern Datum texticlike(PG_FUNCTION_ARGS);
extern Datum texticnlike(PG_FUNCTION_ARGS);
extern Datum bytealike(PG_FUNCTION_ARGS);
extern Datum byteanlike(PG_FUNCTION_ARGS);
extern Datum like_escape(PG_FUNCTION_ARGS);
extern Datum like_escape_bytea(PG_FUNCTION_ARGS);

/* oracle_compat.c */
extern Datum lower(PG_FUNCTION_ARGS);
extern Datum upper(PG_FUNCTION_ARGS);
extern Datum initcap(PG_FUNCTION_ARGS);
extern Datum lpad(PG_FUNCTION_ARGS);
extern Datum rpad(PG_FUNCTION_ARGS);
extern Datum btrim(PG_FUNCTION_ARGS);
extern Datum btrim1(PG_FUNCTION_ARGS);
extern Datum byteatrim(PG_FUNCTION_ARGS);
extern Datum ltrim(PG_FUNCTION_ARGS);
extern Datum ltrim1(PG_FUNCTION_ARGS);
extern Datum rtrim(PG_FUNCTION_ARGS);
extern Datum rtrim1(PG_FUNCTION_ARGS);
extern Datum translate(PG_FUNCTION_ARGS);
extern Datum chr (PG_FUNCTION_ARGS);
extern Datum repeat(PG_FUNCTION_ARGS);
extern Datum ascii(PG_FUNCTION_ARGS);

/* inet_cidr_ntop.c */
extern char *inet_cidr_ntop(int af, const void *src, int bits,
			   char *dst, size_t size);

/* inet_net_pton.c */
extern int inet_net_pton(int af, const char *src,
			  void *dst, size_t size);

/* network.c */
extern Datum inet_in(PG_FUNCTION_ARGS);
extern Datum inet_out(PG_FUNCTION_ARGS);
extern Datum inet_recv(PG_FUNCTION_ARGS);
extern Datum inet_send(PG_FUNCTION_ARGS);
extern Datum cidr_in(PG_FUNCTION_ARGS);
extern Datum cidr_out(PG_FUNCTION_ARGS);
extern Datum cidr_recv(PG_FUNCTION_ARGS);
extern Datum cidr_send(PG_FUNCTION_ARGS);
extern Datum network_cmp(PG_FUNCTION_ARGS);
extern Datum network_lt(PG_FUNCTION_ARGS);
extern Datum network_le(PG_FUNCTION_ARGS);
extern Datum network_eq(PG_FUNCTION_ARGS);
extern Datum network_ge(PG_FUNCTION_ARGS);
extern Datum network_gt(PG_FUNCTION_ARGS);
extern Datum network_ne(PG_FUNCTION_ARGS);
extern Datum network_smaller(PG_FUNCTION_ARGS);
extern Datum network_larger(PG_FUNCTION_ARGS);
extern Datum hashinet(PG_FUNCTION_ARGS);
extern Datum network_sub(PG_FUNCTION_ARGS);
extern Datum network_subeq(PG_FUNCTION_ARGS);
extern Datum network_sup(PG_FUNCTION_ARGS);
extern Datum network_supeq(PG_FUNCTION_ARGS);
extern Datum network_overlap(PG_FUNCTION_ARGS);
extern Datum network_network(PG_FUNCTION_ARGS);
extern Datum network_netmask(PG_FUNCTION_ARGS);
extern Datum network_hostmask(PG_FUNCTION_ARGS);
extern Datum network_masklen(PG_FUNCTION_ARGS);
extern Datum network_family(PG_FUNCTION_ARGS);
extern Datum network_broadcast(PG_FUNCTION_ARGS);
extern Datum network_host(PG_FUNCTION_ARGS);
extern Datum network_show(PG_FUNCTION_ARGS);
extern Datum inet_abbrev(PG_FUNCTION_ARGS);
extern Datum cidr_abbrev(PG_FUNCTION_ARGS);
extern double convert_network_to_scalar(Datum value, Oid typid, bool *failure);
extern Datum inet_to_cidr(PG_FUNCTION_ARGS);
extern Datum inet_set_masklen(PG_FUNCTION_ARGS);
extern Datum cidr_set_masklen(PG_FUNCTION_ARGS);
extern Datum network_scan_first(Datum in);
extern Datum network_scan_last(Datum in);
extern Datum inet_client_addr(PG_FUNCTION_ARGS);
extern Datum inet_client_port(PG_FUNCTION_ARGS);
extern Datum inet_server_addr(PG_FUNCTION_ARGS);
extern Datum inet_server_port(PG_FUNCTION_ARGS);
extern Datum inetnot(PG_FUNCTION_ARGS);
extern Datum inetand(PG_FUNCTION_ARGS);
extern Datum inetor(PG_FUNCTION_ARGS);
extern Datum inetpl(PG_FUNCTION_ARGS);
extern Datum inetmi_int8(PG_FUNCTION_ARGS);
extern Datum inetmi(PG_FUNCTION_ARGS);
extern void clean_ipv6_addr(int addr_family, char *addr);
extern Datum inet_same_family(PG_FUNCTION_ARGS);
extern Datum inet_merge(PG_FUNCTION_ARGS);

/* mac.c */
extern Datum macaddr_in(PG_FUNCTION_ARGS);
extern Datum macaddr_out(PG_FUNCTION_ARGS);
extern Datum macaddr_recv(PG_FUNCTION_ARGS);
extern Datum macaddr_send(PG_FUNCTION_ARGS);
extern Datum macaddr_cmp(PG_FUNCTION_ARGS);
extern Datum macaddr_lt(PG_FUNCTION_ARGS);
extern Datum macaddr_le(PG_FUNCTION_ARGS);
extern Datum macaddr_eq(PG_FUNCTION_ARGS);
extern Datum macaddr_ge(PG_FUNCTION_ARGS);
extern Datum macaddr_gt(PG_FUNCTION_ARGS);
extern Datum macaddr_ne(PG_FUNCTION_ARGS);
extern Datum macaddr_not(PG_FUNCTION_ARGS);
extern Datum macaddr_and(PG_FUNCTION_ARGS);
extern Datum macaddr_or(PG_FUNCTION_ARGS);
extern Datum macaddr_trunc(PG_FUNCTION_ARGS);
extern Datum hashmacaddr(PG_FUNCTION_ARGS);

/* numeric.c */
extern Datum numeric_in(PG_FUNCTION_ARGS);
extern Datum numeric_out(PG_FUNCTION_ARGS);
extern Datum numeric_recv(PG_FUNCTION_ARGS);
extern Datum numeric_send(PG_FUNCTION_ARGS);
extern Datum numerictypmodin(PG_FUNCTION_ARGS);
extern Datum numerictypmodout(PG_FUNCTION_ARGS);
extern Datum numeric_transform(PG_FUNCTION_ARGS);
extern Datum numeric (PG_FUNCTION_ARGS);
extern Datum numeric_abs(PG_FUNCTION_ARGS);
extern Datum numeric_uminus(PG_FUNCTION_ARGS);
extern Datum numeric_uplus(PG_FUNCTION_ARGS);
extern Datum numeric_sign(PG_FUNCTION_ARGS);
extern Datum numeric_round(PG_FUNCTION_ARGS);
extern Datum numeric_trunc(PG_FUNCTION_ARGS);
extern Datum numeric_ceil(PG_FUNCTION_ARGS);
extern Datum numeric_floor(PG_FUNCTION_ARGS);
extern Datum numeric_sortsupport(PG_FUNCTION_ARGS);
extern Datum numeric_cmp(PG_FUNCTION_ARGS);
extern Datum numeric_eq(PG_FUNCTION_ARGS);
extern Datum numeric_ne(PG_FUNCTION_ARGS);
extern Datum numeric_gt(PG_FUNCTION_ARGS);
extern Datum numeric_ge(PG_FUNCTION_ARGS);
extern Datum numeric_lt(PG_FUNCTION_ARGS);
extern Datum numeric_le(PG_FUNCTION_ARGS);
extern Datum numeric_add(PG_FUNCTION_ARGS);
extern Datum numeric_sub(PG_FUNCTION_ARGS);
extern Datum numeric_mul(PG_FUNCTION_ARGS);
extern Datum numeric_div(PG_FUNCTION_ARGS);
extern Datum numeric_div_trunc(PG_FUNCTION_ARGS);
extern Datum numeric_mod(PG_FUNCTION_ARGS);
extern Datum numeric_inc(PG_FUNCTION_ARGS);
extern Datum numeric_smaller(PG_FUNCTION_ARGS);
extern Datum numeric_larger(PG_FUNCTION_ARGS);
extern Datum numeric_fac(PG_FUNCTION_ARGS);
extern Datum numeric_sqrt(PG_FUNCTION_ARGS);
extern Datum numeric_exp(PG_FUNCTION_ARGS);
extern Datum numeric_ln(PG_FUNCTION_ARGS);
extern Datum numeric_log(PG_FUNCTION_ARGS);
extern Datum numeric_power(PG_FUNCTION_ARGS);
extern Datum numeric_scale(PG_FUNCTION_ARGS);
extern Datum int4_numeric(PG_FUNCTION_ARGS);
extern Datum numeric_int4(PG_FUNCTION_ARGS);
extern Datum int8_numeric(PG_FUNCTION_ARGS);
extern Datum numeric_int8(PG_FUNCTION_ARGS);
extern Datum int2_numeric(PG_FUNCTION_ARGS);
extern Datum numeric_int2(PG_FUNCTION_ARGS);
extern Datum float8_numeric(PG_FUNCTION_ARGS);
extern Datum numeric_float8(PG_FUNCTION_ARGS);
extern Datum numeric_float8_no_overflow(PG_FUNCTION_ARGS);
extern Datum float4_numeric(PG_FUNCTION_ARGS);
extern Datum numeric_float4(PG_FUNCTION_ARGS);
extern Datum numeric_accum(PG_FUNCTION_ARGS);
extern Datum numeric_combine(PG_FUNCTION_ARGS);
extern Datum numeric_avg_accum(PG_FUNCTION_ARGS);
extern Datum numeric_avg_combine(PG_FUNCTION_ARGS);
extern Datum numeric_avg_serialize(PG_FUNCTION_ARGS);
extern Datum numeric_avg_deserialize(PG_FUNCTION_ARGS);
extern Datum numeric_serialize(PG_FUNCTION_ARGS);
extern Datum numeric_deserialize(PG_FUNCTION_ARGS);
extern Datum numeric_accum_inv(PG_FUNCTION_ARGS);
extern Datum int2_accum(PG_FUNCTION_ARGS);
extern Datum int4_accum(PG_FUNCTION_ARGS);
extern Datum int8_accum(PG_FUNCTION_ARGS);
extern Datum numeric_poly_combine(PG_FUNCTION_ARGS);
extern Datum numeric_poly_serialize(PG_FUNCTION_ARGS);
extern Datum numeric_poly_deserialize(PG_FUNCTION_ARGS);
extern Datum int2_accum_inv(PG_FUNCTION_ARGS);
extern Datum int4_accum_inv(PG_FUNCTION_ARGS);
extern Datum int8_accum_inv(PG_FUNCTION_ARGS);
extern Datum int8_avg_accum(PG_FUNCTION_ARGS);
extern Datum int8_avg_combine(PG_FUNCTION_ARGS);
extern Datum int8_avg_serialize(PG_FUNCTION_ARGS);
extern Datum int8_avg_deserialize(PG_FUNCTION_ARGS);
extern Datum numeric_avg(PG_FUNCTION_ARGS);
extern Datum numeric_sum(PG_FUNCTION_ARGS);
extern Datum numeric_var_pop(PG_FUNCTION_ARGS);
extern Datum numeric_var_samp(PG_FUNCTION_ARGS);
extern Datum numeric_stddev_pop(PG_FUNCTION_ARGS);
extern Datum numeric_stddev_samp(PG_FUNCTION_ARGS);
extern Datum numeric_poly_sum(PG_FUNCTION_ARGS);
extern Datum numeric_poly_avg(PG_FUNCTION_ARGS);
extern Datum numeric_poly_var_pop(PG_FUNCTION_ARGS);
extern Datum numeric_poly_var_samp(PG_FUNCTION_ARGS);
extern Datum numeric_poly_stddev_pop(PG_FUNCTION_ARGS);
extern Datum numeric_poly_stddev_samp(PG_FUNCTION_ARGS);
extern Datum int2_sum(PG_FUNCTION_ARGS);
extern Datum int4_sum(PG_FUNCTION_ARGS);
extern Datum int8_sum(PG_FUNCTION_ARGS);
extern Datum int2_avg_accum(PG_FUNCTION_ARGS);
extern Datum int4_avg_accum(PG_FUNCTION_ARGS);
extern Datum int4_avg_combine(PG_FUNCTION_ARGS);
extern Datum int2_avg_accum_inv(PG_FUNCTION_ARGS);
extern Datum int4_avg_accum_inv(PG_FUNCTION_ARGS);
extern Datum int8_avg_accum_inv(PG_FUNCTION_ARGS);
extern Datum int8_avg(PG_FUNCTION_ARGS);
extern Datum int2int4_sum(PG_FUNCTION_ARGS);
extern Datum width_bucket_numeric(PG_FUNCTION_ARGS);
extern Datum hash_numeric(PG_FUNCTION_ARGS);
extern Datum generate_series_numeric(PG_FUNCTION_ARGS);
extern Datum generate_series_step_numeric(PG_FUNCTION_ARGS);

/* ri_triggers.c */
extern Datum RI_FKey_check_ins(PG_FUNCTION_ARGS);
extern Datum RI_FKey_check_upd(PG_FUNCTION_ARGS);
extern Datum RI_FKey_noaction_del(PG_FUNCTION_ARGS);
extern Datum RI_FKey_noaction_upd(PG_FUNCTION_ARGS);
extern Datum RI_FKey_cascade_del(PG_FUNCTION_ARGS);
extern Datum RI_FKey_cascade_upd(PG_FUNCTION_ARGS);
extern Datum RI_FKey_restrict_del(PG_FUNCTION_ARGS);
extern Datum RI_FKey_restrict_upd(PG_FUNCTION_ARGS);
extern Datum RI_FKey_setnull_del(PG_FUNCTION_ARGS);
extern Datum RI_FKey_setnull_upd(PG_FUNCTION_ARGS);
extern Datum RI_FKey_setdefault_del(PG_FUNCTION_ARGS);
extern Datum RI_FKey_setdefault_upd(PG_FUNCTION_ARGS);

/* trigfuncs.c */
extern Datum suppress_redundant_updates_trigger(PG_FUNCTION_ARGS);

/* encoding support functions */
extern Datum getdatabaseencoding(PG_FUNCTION_ARGS);
extern Datum database_character_set(PG_FUNCTION_ARGS);
extern Datum pg_client_encoding(PG_FUNCTION_ARGS);
extern Datum PG_encoding_to_char(PG_FUNCTION_ARGS);
extern Datum PG_char_to_encoding(PG_FUNCTION_ARGS);
extern Datum PG_character_set_name(PG_FUNCTION_ARGS);
extern Datum PG_character_set_id(PG_FUNCTION_ARGS);
extern Datum pg_convert(PG_FUNCTION_ARGS);
extern Datum pg_convert_to(PG_FUNCTION_ARGS);
extern Datum pg_convert_from(PG_FUNCTION_ARGS);
extern Datum length_in_encoding(PG_FUNCTION_ARGS);
extern Datum pg_encoding_max_length_sql(PG_FUNCTION_ARGS);

/* format_type.c */
extern Datum format_type(PG_FUNCTION_ARGS);
extern char *format_type_be(Oid type_oid);
extern char *format_type_be_qualified(Oid type_oid);
extern char *format_type_with_typemod(Oid type_oid, int32 typemod);
extern char *format_type_with_typemod_qualified(Oid type_oid, int32 typemod);
extern Datum oidvectortypes(PG_FUNCTION_ARGS);
extern int32 type_maximum_size(Oid type_oid, int32 typemod);

/* quote.c */
extern Datum quote_ident(PG_FUNCTION_ARGS);
extern Datum quote_literal(PG_FUNCTION_ARGS);
extern char *quote_literal_cstr(const char *rawstr);
extern Datum quote_nullable(PG_FUNCTION_ARGS);

/* guc.c */
extern Datum show_config_by_name(PG_FUNCTION_ARGS);
extern Datum show_config_by_name_missing_ok(PG_FUNCTION_ARGS);
extern Datum set_config_by_name(PG_FUNCTION_ARGS);
extern Datum show_all_settings(PG_FUNCTION_ARGS);
extern Datum show_all_file_settings(PG_FUNCTION_ARGS);

/* pg_config.c */
extern Datum pg_config(PG_FUNCTION_ARGS);

/* pg_controldata.c */
extern Datum pg_control_checkpoint(PG_FUNCTION_ARGS);
extern Datum pg_control_system(PG_FUNCTION_ARGS);
extern Datum pg_control_init(PG_FUNCTION_ARGS);
extern Datum pg_control_recovery(PG_FUNCTION_ARGS);

/* rls.c */
extern Datum row_security_active(PG_FUNCTION_ARGS);
extern Datum row_security_active_name(PG_FUNCTION_ARGS);

/* lockfuncs.c */
extern Datum pg_lock_status(PG_FUNCTION_ARGS);
extern Datum pg_blocking_pids(PG_FUNCTION_ARGS);
extern Datum pg_advisory_lock_int8(PG_FUNCTION_ARGS);
extern Datum pg_advisory_xact_lock_int8(PG_FUNCTION_ARGS);
extern Datum pg_advisory_lock_shared_int8(PG_FUNCTION_ARGS);
extern Datum pg_advisory_xact_lock_shared_int8(PG_FUNCTION_ARGS);
extern Datum pg_try_advisory_lock_int8(PG_FUNCTION_ARGS);
extern Datum pg_try_advisory_xact_lock_int8(PG_FUNCTION_ARGS);
extern Datum pg_try_advisory_lock_shared_int8(PG_FUNCTION_ARGS);
extern Datum pg_try_advisory_xact_lock_shared_int8(PG_FUNCTION_ARGS);
extern Datum pg_advisory_unlock_int8(PG_FUNCTION_ARGS);
extern Datum pg_advisory_unlock_shared_int8(PG_FUNCTION_ARGS);
extern Datum pg_advisory_lock_int4(PG_FUNCTION_ARGS);
extern Datum pg_advisory_xact_lock_int4(PG_FUNCTION_ARGS);
extern Datum pg_advisory_lock_shared_int4(PG_FUNCTION_ARGS);
extern Datum pg_advisory_xact_lock_shared_int4(PG_FUNCTION_ARGS);
extern Datum pg_try_advisory_lock_int4(PG_FUNCTION_ARGS);
extern Datum pg_try_advisory_xact_lock_int4(PG_FUNCTION_ARGS);
extern Datum pg_try_advisory_lock_shared_int4(PG_FUNCTION_ARGS);
extern Datum pg_try_advisory_xact_lock_shared_int4(PG_FUNCTION_ARGS);
extern Datum pg_advisory_unlock_int4(PG_FUNCTION_ARGS);
extern Datum pg_advisory_unlock_shared_int4(PG_FUNCTION_ARGS);
extern Datum pg_advisory_unlock_all(PG_FUNCTION_ARGS);

/* txid.c */
extern Datum txid_snapshot_in(PG_FUNCTION_ARGS);
extern Datum txid_snapshot_out(PG_FUNCTION_ARGS);
extern Datum txid_snapshot_recv(PG_FUNCTION_ARGS);
extern Datum txid_snapshot_send(PG_FUNCTION_ARGS);
extern Datum txid_current(PG_FUNCTION_ARGS);
extern Datum txid_current_snapshot(PG_FUNCTION_ARGS);
extern Datum txid_snapshot_xmin(PG_FUNCTION_ARGS);
extern Datum txid_snapshot_xmax(PG_FUNCTION_ARGS);
extern Datum txid_snapshot_xip(PG_FUNCTION_ARGS);
extern Datum txid_visible_in_snapshot(PG_FUNCTION_ARGS);

/* uuid.c */
extern Datum uuid_in(PG_FUNCTION_ARGS);
extern Datum uuid_out(PG_FUNCTION_ARGS);
extern Datum uuid_send(PG_FUNCTION_ARGS);
extern Datum uuid_recv(PG_FUNCTION_ARGS);
extern Datum uuid_lt(PG_FUNCTION_ARGS);
extern Datum uuid_le(PG_FUNCTION_ARGS);
extern Datum uuid_eq(PG_FUNCTION_ARGS);
extern Datum uuid_ge(PG_FUNCTION_ARGS);
extern Datum uuid_gt(PG_FUNCTION_ARGS);
extern Datum uuid_ne(PG_FUNCTION_ARGS);
extern Datum uuid_cmp(PG_FUNCTION_ARGS);
extern Datum uuid_sortsupport(PG_FUNCTION_ARGS);
extern Datum uuid_hash(PG_FUNCTION_ARGS);

/* windowfuncs.c */
extern Datum window_row_number(PG_FUNCTION_ARGS);
extern Datum window_rank(PG_FUNCTION_ARGS);
extern Datum window_dense_rank(PG_FUNCTION_ARGS);
extern Datum window_percent_rank(PG_FUNCTION_ARGS);
extern Datum window_cume_dist(PG_FUNCTION_ARGS);
extern Datum window_ntile(PG_FUNCTION_ARGS);
extern Datum window_lag(PG_FUNCTION_ARGS);
extern Datum window_lag_with_offset(PG_FUNCTION_ARGS);
extern Datum window_lag_with_offset_and_default(PG_FUNCTION_ARGS);
extern Datum window_lead(PG_FUNCTION_ARGS);
extern Datum window_lead_with_offset(PG_FUNCTION_ARGS);
extern Datum window_lead_with_offset_and_default(PG_FUNCTION_ARGS);
extern Datum window_first_value(PG_FUNCTION_ARGS);
extern Datum window_last_value(PG_FUNCTION_ARGS);
extern Datum window_nth_value(PG_FUNCTION_ARGS);

/* access/spgist/spgquadtreeproc.c */
extern Datum spg_quad_config(PG_FUNCTION_ARGS);
extern Datum spg_quad_choose(PG_FUNCTION_ARGS);
extern Datum spg_quad_picksplit(PG_FUNCTION_ARGS);
extern Datum spg_quad_inner_consistent(PG_FUNCTION_ARGS);
extern Datum spg_quad_leaf_consistent(PG_FUNCTION_ARGS);

/* access/spgist/spgkdtreeproc.c */
extern Datum spg_kd_config(PG_FUNCTION_ARGS);
extern Datum spg_kd_choose(PG_FUNCTION_ARGS);
extern Datum spg_kd_picksplit(PG_FUNCTION_ARGS);
extern Datum spg_kd_inner_consistent(PG_FUNCTION_ARGS);

/* access/spgist/spgtextproc.c */
extern Datum spg_text_config(PG_FUNCTION_ARGS);
extern Datum spg_text_choose(PG_FUNCTION_ARGS);
extern Datum spg_text_picksplit(PG_FUNCTION_ARGS);
extern Datum spg_text_inner_consistent(PG_FUNCTION_ARGS);
extern Datum spg_text_leaf_consistent(PG_FUNCTION_ARGS);

/* access/gin/ginarrayproc.c */
extern Datum ginarrayextract(PG_FUNCTION_ARGS);
extern Datum ginarrayextract_2args(PG_FUNCTION_ARGS);
extern Datum ginqueryarrayextract(PG_FUNCTION_ARGS);
extern Datum ginarrayconsistent(PG_FUNCTION_ARGS);
extern Datum ginarraytriconsistent(PG_FUNCTION_ARGS);

/* access/tablesample/bernoulli.c */
extern Datum tsm_bernoulli_handler(PG_FUNCTION_ARGS);

/* access/tablesample/system.c */
extern Datum tsm_system_handler(PG_FUNCTION_ARGS);

/* access/transam/twophase.c */
extern Datum pg_prepared_xact(PG_FUNCTION_ARGS);

/* access/transam/multixact.c */
extern Datum pg_get_multixact_members(PG_FUNCTION_ARGS);

/* access/transam/committs.c */
extern Datum pg_xact_commit_timestamp(PG_FUNCTION_ARGS);
extern Datum pg_last_committed_xact(PG_FUNCTION_ARGS);

/* catalogs/dependency.c */
extern Datum pg_describe_object(PG_FUNCTION_ARGS);
extern Datum pg_identify_object(PG_FUNCTION_ARGS);
extern Datum pg_identify_object_as_address(PG_FUNCTION_ARGS);

/* catalog/objectaddress.c */
extern Datum pg_get_object_address(PG_FUNCTION_ARGS);

/* commands/constraint.c */
extern Datum unique_key_recheck(PG_FUNCTION_ARGS);

/* commands/event_trigger.c */
extern Datum pg_event_trigger_dropped_objects(PG_FUNCTION_ARGS);
extern Datum pg_event_trigger_table_rewrite_oid(PG_FUNCTION_ARGS);
extern Datum pg_event_trigger_table_rewrite_reason(PG_FUNCTION_ARGS);
extern Datum pg_event_trigger_ddl_commands(PG_FUNCTION_ARGS);

/* commands/extension.c */
extern Datum pg_available_extensions(PG_FUNCTION_ARGS);
extern Datum pg_available_extension_versions(PG_FUNCTION_ARGS);
extern Datum pg_extension_update_paths(PG_FUNCTION_ARGS);
extern Datum pg_extension_config_dump(PG_FUNCTION_ARGS);

/* commands/prepare.c */
extern Datum pg_prepared_statement(PG_FUNCTION_ARGS);

/* utils/mmgr/portalmem.c */
extern Datum pg_cursor(PG_FUNCTION_ARGS);

#endif   /* BUILTINS_H */
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