Обсуждение: Debugging tool for viewing parse trees?

I've gotten back to working on the SQL99 version of updateable views and
I'ld like to confirm my current understanding of the parse tree data
structure.  Is there a debugging-type tool for outputting the parse tree for
a given query?

Eric Nielsen

Eric D Nielsen <nielsene@MIT.EDU> writes:
> I've gotten back to working on the SQL99 version of updateable views and
> I'ld like to confirm my current understanding of the parse tree data
> structure.  Is there a debugging-type tool for outputting the parse tree for
> a given query?

See debug_print_parse, debug_print_rewritten, debug_print_plan,
debug_pretty_print GUC variables.
        regards, tom lane

Sure, see the debug_ variables in postgresql.conf or via SHOW ALL, and
then set client_log_messages to DEBUG.  Also look at debug_pretty_print.

---------------------------------------------------------------------------

Eric D Nielsen wrote:
> I've gotten back to working on the SQL99 version of updateable views and
> I'ld like to confirm my current understanding of the parse tree data
> structure.  Is there a debugging-type tool for outputting the parse tree for
> a given query?
> 
> Eric Nielsen
> 
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