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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
The plpy module also provides the functions
plpy.debug(msg),
plpy.log(msg),
plpy.info(msg),
plpy.notice(msg),
plpy.warning(msg),
plpy.error(msg), and
plpy.fatal(msg).
plpy.error
and
plpy.fatal
actually raise a Python exception
which, if uncaught, propagates out to the calling query, causing
the current transaction or subtransaction to be aborted.
raise plpy.Error(msg) and
raise plpy.Fatal(msg) are
equivalent to calling
plpy.error
and
plpy.fatal
, respectively.
The other functions only generate messages of different
priority levels.
Whether messages of a particular priority are reported to the client,
written to the server log, or both is controlled by the
log_min_messages and
client_min_messages configuration
variables. See Chapter 18 for more information.