Changelog:
Bug fixes
Fix build error on some system (Fedora 32). (Tatsuo Ishii)
Fix unnecessary checks. (Tatsuo Ishii)
Doc: Fix typo. (Tatsuo Ishii)
Fix for segmentation fault in PCP process. (bug 598) (Muhammad Usama)
Doc: Fix typo. (Tatsuo Ishii, Bo Peng)
Fix Pgpool-II hangs when an Execute message is issued right after Sync message and query cache hits. (Tatsuo Ishii)
Fix problems in watchdog source code processing json data. (bug 596) (Tatsuo Ishii)
Fix possible data inconsistency in native replication mode. (Tatsuo Ishii)
Fix watchdog ping probes fail with long hostnames due to small buffer. (bug 516) (Bo Peng)
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