When runtime statistics are being captured, you can control the mode of processing using this procedure. When the xplain mode is set to 1, statements are compiled and optimized, but not executed; when the xplain mode is set to 0 (the default), statements are compiled, optimized, and executed normally.
Note that xplain_mode only matters when xplain style has been
enabled, see the
See "Working with RunTimeStatistics" in the
If authentication and SQL authorization are both enabled, only the
To let