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Re: psql \set variables in crosstab queries?

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On Sat, Mar 4, 2023 at 10:05 PM Ron <ronljohnsonjr@xxxxxxxxx> wrote:

Ugh.  It's a long and hairy query that would be a nightmare in a format statement.


Assuming you can pass this thing into the crosstab function in the first place you must already have put it into a string.  Changing "crosstab" to "format", plopping in the placeholders, and adding a couple of more passed-in arguments is not materially more effort or hairier.

You could create a SRF for the pre-crosstab data then do:  SELECT crosstab('select * from table_func(%,%,%)', :'dd', ...).  The table_func itself would then just use pl/pgsql variables (or SQL ones...) in a normal query instead of a dynamic query (presuming you are only substituting values anyway).

David J.


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