[pgpool-committers: 1856] pgpool: Fix JDBC exception of prepared statement including now() in rep

[Muhammad Usama]

Fix JDBC exception of prepared statement including now() in replication mode

With JDBC, when a prepared statement is executed more than PreparedThreshold times,
the statement is named and Describe message is sent after Parse. With named statement,
pgpool rewrite now() to parameter at Parse in replication mode. Hence, rewritten query
has additonal parameter than original. However, ParameterDescription message sent to
frontend, which is response of Describe, should include OIDs of the same number os
original query's parameters. Otherwize, JDBC raises ArrayIndexoutOfBoundsException.

Branch
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EXCEPTION_MGR

Details
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http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=3d80e6ddff7924521dd8e176d8966d6f6334bde6
Author: Yugo Nagata <nagata at sraoss.co.jp>

Modified Files
--------------
src/context/pool_query_context.c          |    1 +
src/include/context/pool_query_context.h  |    1 +
src/include/protocol/pool_proto_modules.h |    3 +
src/protocol/pool_process_query.c         |    2 +
src/protocol/pool_proto_modules.c         |  107 +++++++++++++++++++++++++++++
src/rewrite/pool_timestamp.c              |   13 ++--
6 files changed, 122 insertions(+), 5 deletions(-)