[pgpool-committers: 919] pgpool: Add clear_memqcache_on_escalation option

[Yugo Nagata]

Add clear_memqcache_on_escalation option

If this is on, all the query caches on shared memory are cleared
when standby pgpool escalates to active (virtual IP holder).
This option should be off when clients connect to pgpool not using
virtual IP, such like multi-master configuration.

Branch
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feature/watchdog_for_v3_3

Details
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http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=8bf1483d091faa0b96c0cc22604531cf68da7bfb

Modified Files
--------------
pgpool.conf.sample   |    9 +++++++++
pool_config.c        |   14 ++++++++++++++
pool_config.h        |   49 ++++++++++++++++++++++++-------------------------
pool_config.l        |   14 ++++++++++++++
watchdog/wd_packet.c |    6 ++----
5 files changed, 63 insertions(+), 29 deletions(-)