[pgpool-committers: 9484] pgpool: Fix crash when v2 protocol is used.

[Tatsuo Ishii]

Fix crash when v2 protocol is used.

When read_kind_from_backend() accumulates statistics data, it was not
prepared for v2 protocol case.

Bug report and patch from MCanivez.
https://www.pgpool.net/mantisbt/view.php?id=807
Slightly modified by me.

Branch
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V4_4_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=cd037513f679f8dde31b396ddd3907a143020370

Modified Files
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src/protocol/pool_process_query.c | 37 ++++++++++++++++++++++++-------------
1 file changed, 24 insertions(+), 13 deletions(-)