Who directed the episode with production code ca311?
CREATE TABLE table_25740548_4 (directed_by VARCHAR, production_code VARCHAR)
SELECT directed_by FROM table_25740548_4 WHERE production_code = "CA311"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25740548_4 (directed_by VARCHAR, production_code VARCHAR) Question: Who directed the episode with production code ca311? [/INST] SELECT directed_by FROM table_25740548_4 WHERE production_code = "CA311" </s>