MariaDB compatability update (#9)

code/datums/_ndatabase/code/brsql_adapter.dm

@@ -530,7 +530,7 @@
 			if(first && !is_id)
 				if(!items_first)
 					update_items+=","
-				update_items+="`[table_name]`.[esfield]=`__prep_update`.[esfield]"
+				update_items+="`[table_name]`.[esfield]=`subquery`.[esfield]"
 				items_first = FALSE
 			local_first = FALSE
 		calltext += "SELECT [local_text]"
@@ -539,9 +539,7 @@
 		issue_log += "No ID passed to update query."
 		return "" // AAAAAAAAAAAAAH FUCK DON'T JUST KILL THE ENTIRE FUCKING TABLE BRUH
 	return {"
-		WITH __prep_update as (
-			[calltext]
-		) UPDATE `[connection.database]`.`[table_name]` INNER JOIN `__prep_update` ON `[table_name]`.id = `__prep_update`.id SET [update_items]
+		UPDATE `[connection.database]`.`[table_name]` JOIN (WITH `__prep_update` AS ( [calltext] ) SELECT * FROM `__prep_update`) subquery ON `[table_name]`.id = subquery.id SET [update_items]
 	"}
 
 /datum/db/adapter/brsql_adapter/proc/getquery_delete_table(table_name, list/ids)