" operators for a type */
extern void get_sort_group_operators(Oid argtype,
bool needLT, bool needEQ, bool needGT,
Oid *ltOpr, Oid *eqOpr, Oid *gtOpr,
bool *isHashable);
/* Convenience routines for common calls on the above */
extern Oid compatible_oper_opid(List *op, Oid arg1, Oid arg2, bool noError);
/* Extract operator OID or underlying-function OID from an Operator tuple */
extern Oid oprid(Operator op);
extern Oid oprfuncid(Operator op);
/* Build expression tree for an operator invocation */
extern Expr *make_op(ParseState *pstate, List *opname,
Node *ltree, Node *rtree, int location);
extern Expr *make_scalar_array_op(ParseState *pstate, List *opname,
bool useOr,
Node *ltree, Node *rtree, int location);
#endif /* PARSE_OPER_H */