codekingpro/portable-devtools

1/*-------------------------------------------------------------------------2 *3 * parse_oper.h4 *		handle operator things for parser5 *6 *7 * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group8 * Portions Copyright (c) 1994, Regents of the University of California9 *10 * src/include/parser/parse_oper.h11 *12 *-------------------------------------------------------------------------13 */14#ifndef PARSE_OPER_H15#define PARSE_OPER_H16 17#include "access/htup.h"18#include "nodes/parsenodes.h"19#include "parser/parse_node.h"20 21 22typedef HeapTuple Operator;23 24/* Routines to look up an operator given name and exact input type(s) */25extern Oid	LookupOperName(ParseState *pstate, List *opername,26						   Oid oprleft, Oid oprright,27						   bool noError, int location);28extern Oid	LookupOperWithArgs(ObjectWithArgs *oper, bool noError);29 30/* Routines to find operators matching a name and given input types */31/* NB: the selected operator may require coercion of the input types! */32extern Operator oper(ParseState *pstate, List *opname, Oid ltypeId,33					 Oid rtypeId, bool noError, int location);34extern Operator left_oper(ParseState *pstate, List *op, Oid arg,35						  bool noError, int location);36 37/* Routines to find operators that DO NOT require coercion --- ie, their */38/* input types are either exactly as given, or binary-compatible */39extern Operator compatible_oper(ParseState *pstate, List *op,40								Oid arg1, Oid arg2,41								bool noError, int location);42 43/* currently no need for compatible_left_oper/compatible_right_oper */44 45/* Routines for identifying "<", "=", ">" operators for a type */46extern void get_sort_group_operators(Oid argtype,47									 bool needLT, bool needEQ, bool needGT,48									 Oid *ltOpr, Oid *eqOpr, Oid *gtOpr,49									 bool *isHashable);50 51/* Convenience routines for common calls on the above */52extern Oid	compatible_oper_opid(List *op, Oid arg1, Oid arg2, bool noError);53 54/* Extract operator OID or underlying-function OID from an Operator tuple */55extern Oid	oprid(Operator op);56extern Oid	oprfuncid(Operator op);57 58/* Build expression tree for an operator invocation */59extern Expr *make_op(ParseState *pstate, List *opname,60					 Node *ltree, Node *rtree, Node *last_srf, int location);61extern Expr *make_scalar_array_op(ParseState *pstate, List *opname,62								  bool useOr,63								  Node *ltree, Node *rtree, int location);64 65#endif							/* PARSE_OPER_H */66