On 10/07/2017 04:26 PM, Petr Jelinek wrote:
Hmm so you start transaction (you have to when running CREATE_REPLICATION_SLOT with USE_SNAPSHOT parameter). And while the slot is being created the config is reloaded. And since now you are in transaction the tsearch hook for GUC processing tries to access catalogs which sets the xmin for the transaction.
Actually this slot is implicitly created by LogicalRepSyncTableStart to perform initial data sync.
That's not good, but I can't really say I have idea about what to do with it other than to set some kind of flag saying that logical decoding snapshot is being built and using that to skip catalog access which does not seem very pretty.
It is not quite clear from the comment why it is not possible to overwrite MyPgXact->xmin or just use existed value. -- Konstantin Knizhnik Postgres Professional: http://www.postgrespro.com The Russian Postgres Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
