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_23649244_2 ( release_date VARCHAR, artist_1 VARCHAR )

### Question ###
If artist 1 is Wolfgang Gartner, what is the release date?

### Accurate SQL ###

SELECT release_date FROM table_23649244_2 WHERE artist_1 = "Wolfgang Gartner"