[GENERAL] cast time interval to seconds

[rihad]

Hi, I have two columns start_time & stop_time declared as "TIME". I'd 
like to compute the difference between the two times in seconds, all in db:

SELECT
  (CAST(stop_time AS SECONDS) + 86400 - CAST(start_time AS SECONDS))
  % 86400;
Unfortunately AS SECONDS causes parse error. Any hints? Thanks.

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