Re: selective statement logging

Andrew Dunstan wrote:
>
> The TODO list contains this item which I said I would look at:
>
> Allow logging of only data definition(DDL), or DDL and modification
> statements
>
> The trouble I see is that we currently do statement logging before we
> have examined the query string at all, in the code shown below from
> src/backend/tcop/postgres.c.
>
> I guess I could construct one or more regexes to examine the query
> string, although that might affect performance a bit (of course, I would
> precompile the patterns).
>
> Any other ideas on how to proceed?

Yes, look at how the command tag is grabbed for the PS display, and do
the log checks at that point.

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