Re: [GENERAL] Temporary tables and miscellaneous schemas

Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > OK, the following patch uses UNION and an =ANY() join to the
> > current_schemas() array to suppress non-local temp schemas, but display
> > all other schemas.
>
> Why are you doing any of this? We had agreed to suppress all temp
> schemas, period. The query should be simple.

I know some feel that showing any temporary schemas is wrong, but it
seems that the local temp schema has valuable information. If I do \d
pg_temp_1.*, I see all my temporary tables. I know we have a TODO to
show all existing prepared statements, and giving people a way to see
their temp tables seems important. In fact, it seems more valuable than
the information containted in pg_toast.

The attached patch documents that non-local temp tables are suppressed.
As for people accidentally hardcoding the temp table schema in their
scripts, I don't see how someone would make that mistake with a schema
called pg_temp_##. It is sort of like assuming a file will always exist
in /tmp.

One nifty idea would be for pg_temp.* to alway refer to your local temp
schema. Is that a TODO?

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