Tweak debug statement
Fix ConnectionInfo data on shem.
Add new API to ConnectionInfo pool_coninfo_pid().
Add call to pool_init_process_context to pcp_child.
Add backend pid to pcp_proc_info.
Add backend pid to pcp_proc_info.
Implement pcp_detatch_node gracefull mode.
i.e. wait until all clients disconnected.
Remove debug line.
Add 1/0 field to pcp_proc_info7s output to indicate that this
connection pool is connected from frontend or not.
Remove pool_index member from POOL_CONNECTION_POOL.
Instead has pool_index in pool_connection_pool as a static data.
Add frontend connection status data to pcp_proc_info.
Peer review.
Update for pgpool-II 3.0.
Add raise_intentional_error_if_need function and failed_transaction
valiable, to resolve following transaction issue in load_balance_mode.
Now, SELECT is sent to master node when error occurred
in master_slave_mode and load_balance_mode.

example of atomicity issue:

testdb=> BEGIN;
BEGIN
testdb=> SELECT * FROM t1;
ERROR:  relation "t1" does not exist
LINE 1: SELECT * FROM t1;
                      ^
testdb=> SELECT * FROM t2;
 id
----
(0 rows)

testdb=> COMMIT;
ROLLBACK
Add pgpool_switch_xlog function.
pgpool_switch_log is the same as pg_switch_xlog except that it wait till
archiving is completed.
Fix pgpool_recovery and pgpool_remote_start so that they can compile
with PostgreSQL 7.3.
Make timestamp rewriting schema aware.
Fix temporary table checking. Make schema aware. Also a query to
system catalog should be sent to real master, not virtual master.
More fix.
Make schema aware for 8.3 or before.
Sync with Japanese doc.
Remove variables: select_in_transaction, execute_select.
Fix raise_intentional_error_if_need so that it supports replication_mode.
Remove unnecessary global variable.
Minor correction.