Delete using left outer join in Postgres

Question

I am switching a database from MySQL to Postgres SQL. A select query that worked in MySQL works in Postgres but a similar delete query does not.

I have two tables of da

Answer 1

Instead of

DELETE ed
FROM tv_episodes AS ed
LEFT OUTER JOIN data AS nd ON
ed.file_name = nd.file_name AND 
ed.path = nd.path
WHERE ed.cd_name = 'MediaLibraryDrive' AND nd.cd_name IS NULL;

please try

DELETE FROM tv_episodes
WHERE cd_name = 'MediaLibraryDrive' AND 
  (tv_episodes.filename, tv_episodes.path IN
    (SELECT ed.filename, 
    ed.path 
    FROM tv_episodes AS ed 
    INNER JOIN data AS nd 
      ON ed.file_name = nd.file_name 
        AND ed.path = nd.path
    WHERE nd.cd_name IS NULL)
  )
  ;

JOIN is not valid in a DELETE query according to the postgresql documentation. You might need to concatenate the left and right parts of the IN expression.