pgpool-II 4.7.0 Documentation
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# A.187. Release 3.5.26

> Release Date: 2020-08-20

## A.187.1. Changes

- Add mention about `hostssl/hostnossl` to `pool_hba.conf` sample file. (Tatsuo Ishii)

## A.187.2. Bug fixes

- At pgpool startup, if pid file exists, truncate pid file to zero length before writing. (Bo Peng)

  Patch is created by maliangzhu.

- Fix connection_life_time does not work if primary node is not 0 in streaming replication mode. (Tatsuo Ishii)

- Fix `pgpool_setup` problem with -r option and PostgreSQL 12. (Tatsuo Ishii)

- Change PCP `UNIX_DOMAIN_PATH` of RPM package to `/var/run/postgresql`. (Bo Peng)

- Fix query cache bugs. (Tatsuo Ishii)

  If query cache is enable, when a table is updated, Pgpool-II should delete all the caches related to the table. However, `EXPLAIN ANALYZE` and CTE with data-modifying SQLs were mistakenly treated as normal read only query so that the query caches were not deleted.

  Patch is created by Hou, Zhijie and modified by Tatsuo Ishii.

- Fix Pgpool-II hang in a corner case. (Tatsuo Ishii)

- If there are parameters other than "user", "database" and "application_name", reading startup packet failed. (Tatsuo Ishii)

- Fix miscount of connections when `pg_terminate_backend()` is executed. (Takuma Hoshiai)

- Fix segmentation fault when application name is included in log_line_prefix. (bug 615) (Tatsuo Ishii)

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