Fix query cache filtering (#1075)

Author: aidanharan

test/support/core_ext/query_cache.rb

@@ -22,7 +22,13 @@ module SqlIgnoredCache
   # compromising cache outside tests.
   def cache_sql(sql, name, binds)
     result = super
-    @query_cache.delete_if { |k, v| k =~ Regexp.union(IGNORED_SQL) }
+    
+    @query_cache.delete_if do |cache_key, _v|
+      # Query cache key generated by `sql` or `[sql, binds]`, so need to retrieve `sql` for both cases.
+      cache_key_sql = Array(cache_key).first
+      Regexp.union(IGNORED_SQL).match?(cache_key_sql)
+    end
+
     result
   end
 end