Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_23793770_1 (production_code INTEGER, directed_by VARCHAR)

### Question ###
What was the production code for the episode directed by Michael Morris?

### Accurate SQL ###

SELECT MIN(production_code) FROM table_23793770_1 WHERE directed_by = "Michael Morris"