Question

I am trying to use concat_ws inside a group_concat command. With a query, which simplified looks like:

SELECT item.title, GROUP_CONCAT( CONCAT_WS(  ',', attachments.id, attachments.type,     attachments.name ) )  as attachments FROM story AS item LEFT OUTER JOIN story_attachment AS attachments ON item.id = attachments.item_id GROUP BY item.id 

I get the attachments column as a Blob type. is it it possible to get it as a string instead of Blob?

Answer 1

You need to cast as a char..

SELECT item.title, GROUP_CONCAT( CAST(CONCAT_WS(',', attachments.id,  attachments.type, attachments.name ) as CHAR ) ) as attachments  FROM story AS item  LEFT OUTER JOIN story_attachment AS attachments  ON item.id = attachments.item_id GROUP BY item.id