Fix SystemTap dtrace warning about smgr probe argument types.

doc: Improve description of pg_stat_activity.backend_type

doc: Remove duplicate word in ECPG description

Default to log_lock_waits=on

Doc: improve description of which role runs a trigger.

Change role names used in trigger test.

Ensure that AFTER triggers run as the instigating user.

Reverse the search order in afterTriggerAddEvent().

Adjust regex for test with opening parenthesis in character classes

Fix conversion of SIMILAR TO regexes for character classes

Document restrictions regarding incremental backups and standbys.

Doc: document that triggers can break referential integrity.

Speed up uuid_out() by not relying on a StringInfo

Only evaluate default values as required when doing COPY FROM

doc: remove mention of backslash doubling in strings

Fix memory leak in Incremental Sort rescans

Invent GENERIC_PLAN option for EXPLAIN.

Fix event trigger example