Function transformBoolExpr

src/backend/parser/parse_expr.c:1349–1383

}

static Node *
transformBoolExpr(ParseState *pstate, BoolExpr *a)
{
	List	   *args = NIL;
	const char *opname;
	ListCell   *lc;

	switch (a->boolop)
	{
		case AND_EXPR:
			opname = "AND";
			break;
		case OR_EXPR:
			opname = "OR";
			break;
		case NOT_EXPR:
			opname = "NOT";
			break;
		default:
			elog(ERROR, "unrecognized boolop: %d", (int) a->boolop);
			opname = NULL;		/* keep compiler quiet */
			break;
	}

	foreach(lc, a->args)
	{
		Node	   *arg = (Node *) lfirst(lc);

		arg = transformExprRecurse(pstate, arg);
		arg = coerce_to_boolean(pstate, arg, opname);
		args = lappend(args, arg);
	}

	return (Node *) makeBoolExpr(a->boolop, args, a->location);
}

static Node *
transformFuncCall(ParseState *pstate, FuncCall *fn)