Function create_check_constraint

src/gpre/cmd.cpp:427–451

//

static void create_check_constraint( gpre_req* request, const act* action,
	cnstrt* constraint)
{
	gpre_trg* trigger = (gpre_trg*) MSC_alloc(TRG_LEN);

	// create the INSERT trigger

	trigger->trg_type = PRE_STORE_TRIGGER;

	// "insert violates CHECK constraint on table"

	trigger->trg_message = NULL;
	trigger->trg_boolean = constraint->cnstrt_boolean;
	trigger->trg_source = (STR) MSC_alloc(constraint->cnstrt_text->txt_length + 1);
	CPR_get_text(trigger->trg_source->str_string, constraint->cnstrt_text);
	create_trigger(request, action, trigger, CME_expr);

	// create the UPDATE trigger

	trigger->trg_type = PRE_MODIFY_TRIGGER;

	// "update violates CHECK constraint on table"

	create_trigger(request, action, trigger, CME_expr);
}


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