Thread: crosstab documentation should add a note about use in materialized views
crosstab documentation should add a note about use in materialized views
From
PG Doc comments form
Date:
The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/15/tablefunc.html Description: When using a crosstab in a materialized view, if the SQL is not qualified with a schema, that restoring a database from a dump may fail. See the discussion in https://www.postgresql.org/message-id/16202-b6b345c9d2819409%40postgresql.org
Re: crosstab documentation should add a note about use in materialized views
From
Bruce Momjian
Date:
On Tue, Oct 18, 2022 at 08:30:13AM +0000, PG Doc comments form wrote: > The following documentation comment has been logged on the website: > > Page: https://www.postgresql.org/docs/15/tablefunc.html > Description: > > When using a crosstab in a materialized view, if the SQL is not qualified > with a schema, that restoring a database from a dump may fail. See the > discussion in > https://www.postgresql.org/message-id/16202-b6b345c9d2819409%40postgresql.org I am trying to understand the scope of this breakage. I think it is because crosstab specifies queries as strings, and a materialized view has to run the query during restore to populate the materialized view. Is this the only combination of pg_dump restore breakage? -- Bruce Momjian <bruce@momjian.us> https://momjian.us EDB https://enterprisedb.com Indecision is a decision. Inaction is an action. Mark Batterson
Bruce Momjian <bruce@momjian.us> writes: >> When using a crosstab in a materialized view, if the SQL is not qualified >> with a schema, that restoring a database from a dump may fail. See the >> discussion in >> https://www.postgresql.org/message-id/16202-b6b345c9d2819409%40postgresql.org > I am trying to understand the scope of this breakage. I think it is > because crosstab specifies queries as strings, and a materialized view > has to run the query during restore to populate the materialized view. > Is this the only combination of pg_dump restore breakage? It doesn't sound like this is in any way unique to crosstab. Any underqualified reference to a user-defined object can cause problems during dump/restore, because of the restricted search_path we use during restore. regards, tom lane