PG Bug reporting form <noreply@postgresql.org> writes:
> The issue is triggered by a PL/pgSQL procedure that dynamically executes a
> multi-statement SQL string via EXECUTE, combining DECLARE CURSOR and FETCH
> (e.g., "DECLARE test_cursor_1_1 CURSOR FOR SELECT * FROM test_table_1; FETCH
> 200 FROM test_cursor_1_1"). This fails with
> Assert(ActiveSnapshot->as_snap->regd_count == 0) in snapmgr.c:754 because
> the snapshot's registration count (regd_count) reaches 2 during SPI's
> multi-statement processing loop.
I cannot reproduce this assertion, either in master or REL_18_STABLE
branch tip. Are you testing community Postgres, or some locally
modified version?
regards, tom lane
