Smyatkin Maxim

6X got deadlock with vacuum and TPC-DS Q14

2

## Bug Report Hey fellows, A couple times in production I've been notified about deadlocks between analytical queries and our nightly vacuum process. And finally got it reproduced on my...

Coordinator crashes when handling ExecShareInputScan in sub plan

3

## Bug Report One of our production clusters was repeatedly experiencing coordinator seg faults running this query: ```sql with open_rate_avg as (select sum(tab.opened)*100/sum(tab.sended) as or_avg from (select date(date_trunc('week', date(customer_action_datetime_utc))) as...

Fix segfault when recovering 2pc transaction

5

When promoting a mirror segment due to failover we have seen a stacktrace like this: ``` "FATAL","58P01","requested WAL segment pg_xlog/00000023000071D50000001F has already been removed",,,,,,,0,,"xlogutils.c",580,"Stack trace: 1 0x557bdb9f09b6 postgres errstart +...