An SQL statemnet like "SELECT ID, DATE_FORMAT( post_date, '%d.%M.%Y %W %H:%i ') AS p_d , post_title, post_content FROM posts;" With mysql driver. is not correctly prepared. This may result of escaping % chars. Also this bug may be releated to apr_dbd_mysql_driver.
From what I can tell, this is simply a matter of internal mechanics using the % sign as an indicator of a variable (%s being most noteworthy). Have you tried using %% instead to denote a percentage sign? Please try so, and if successful, do reply back, so I can perhaps put a note about it in the docs, so we can avoid future bug reports like this.
I can not try double % for now - I don't have test env. anymore- but I'm quite sure I have tried many things to avoid errors .
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