Re: BUG #19001: PostgreSQL 17: CREATE MATERIALIZED VIEW fails with STABLE function using JSONB LATERAL joins

On Tue, 2025-07-29 at 13:55 +0000, PG Bug reporting form wrote:
> PostgreSQL version: 17.5
> Operating system:   Debian (Docker - postgres:latest) on WSL2 / Window
> Description:        
> 
> In PostgreSQL 17, I’m encountering an error when creating a MATERIALIZED
> VIEW that uses a STABLE function returning jsonb, followed by LATERAL joins
> using jsonb_each() and jsonb_to_record().
> 
> The view creation fails with:
> ERROR:  relation "test_table" does not exist
> 
> However, the referenced table does exist, and the function used in the view
> creation runs fine standalone.
> 
> The same view definition works correctly in PostgreSQL 13

That must be a consequence of the tightened security, see the first entry in
https://www.postgresql.org/docs/current/release-17.html#RELEASE-17-MIGRATION

Your function is not defined correctly.  Set a "search_path" like this:

  ALTER FUNCTION yourfunc SET search_path = schema_containing_test_table;

Yours,
Laurenz Albe