On Wed, 24 Dec 2025 at 12:15, Shlok Kyal <[email protected]> wrote: >
There is a buildfarm failure in fairywren at [1]. The failure occurs when a sequence is dropped concurrently while pg_get_sequence_data() is being executed as part of the copy_sequences query. This can be reproduced by pausing execution inside pg_get_sequence_data() and dropping the sequence in parallel. In such a case, the function returns NULL values for last_value, which is not currently expected by the subscriber side and results in a failure. I am analyzing this scenario further to identify a proper solution. I will share the detailed analysis and proposed fix in a subsequent email. [1] - https://buildfarm.postgresql.org/cgi-bin/show_stage_log.pl?nm=fairywren&dt=2026-01-19%2002%3A32%3A40&stg=subscription-check Regards, Vignesh
