Re: Handling memory contexts in aggregate function invoking other built-in aggregate functions

[Matt Magoffin <postgresql.org@xxxxxxx>]

On 5/12/2021, at 9:04 AM, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:

So that probably means that you weren't careful about allocating your

own state data in the long-lived context (agg_context), and so it
got freed between calls.

It turns out I wasn’t careful about setting isnull on the passed in state argument. After I fixed that [1] everything appears to be running smoothly!

— m@

[1] https://github.com/SolarNetwork/aggs_for_vecs/commit/a734ab211f9660f8a5a3d13870f089b46df56e7c