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

Muhammad Usama m.usama at gmail.com
Tue May 6 20:08:10 JST 2014

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.


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(-)

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