[pgpool-committers: 6967] pgpool: Add error stats from backend to "show pool_backend_stats" comma

[Tatsuo Ishii]

Add error stats from backend to "show pool_backend_stats" command.

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=f04ef82be528c5e5e706f9e2e7231db369427eee

Modified Files
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doc/src/sgml/ref/show_pool_backend_stats.sgml | 15 +++++----
src/include/pcp/libpcp_ext.h                  |  3 ++
src/include/protocol/pool_process_query.h     |  2 ++
src/include/utils/statistics.h                | 24 +++++++++------
src/protocol/pool_process_query.c             | 44 +++++++++++++++++++++------
src/protocol/pool_proto_modules.c             |  8 +++++
src/utils/pool_process_reporting.c            | 11 +++++--
src/utils/statistics.c                        | 35 +++++++++++++++++++++
8 files changed, 115 insertions(+), 27 deletions(-)