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   1 # bool pq\Connection::trace([resource $stream])
   2
   3 Trace protocol communication with the server.
   4
   5 > ***NOTE:***
   6   Calling pq\Connection::trace() without argument or NULL stops tracing.
   7
   8 ## Params:
   9
  10 * Optional resource $stream = NULL
  11   The resource to which the protocol trace will be output.
  12   (The stream must be castable to STDIO).
  13
  14 ## Returns:
  15
  16 * bool, success.
  17
  18 ## Throws:
  19
  20 * pq\Exception\BadMethodCallException