> Ok it is possible, I've got a C extension up and running which hooks > ExecutorStart, then once for each TX ( I monitor the nesting depth like in > pg_stat_statements, and only attach at the top level) attaches a sub > transaction callback, tracking start subtransaction events and incrementing > a counter / keeping track of the worst offenders in a hashmap. >
Sorry that should be ExecutorRun - although I'm a little confused about which is the correct choice. -James -- The contents of this email are confidential and may be subject to legal or professional privilege and copyright. No representation is made that this email is free of viruses or other defects. If you have received this communication in error, you may not copy or distribute any part of it or otherwise disclose its contents to anyone. Please advise the sender of your incorrect receipt of this correspondence.
