[HACKERS] TAP: fix undefined var warnings in PostgresNode with timeout - Mailing list pgsql-hackers

If PostgresNode::psql (from the TAP framework) is called with a
timeout set and a timed_out reference, it will attempt to do bitwise
AND and bitshifts on the $ret value from IPC::Run, which is undef if
the command timed out.

This produces annoying errors in the logs.

Fix attached. Should be applied to 9.6 and pg 10.

-- 
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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