New Event Trigger: table_rewrite

From: Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr>
To: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: New Event Trigger: table_rewrite
Date: 2014-10-14 20:19:26
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Hi fellow hackers,

Please find attached to this email a patch to implement a new Event
Trigger, fired on the the "table_rewrite" event. As attached, it's meant
as a discussion enabler and only supports ALTER TABLE (and maybe not in
all forms of it). It will need to grow support for VACUUM FULL and
CLUSTER and more before getting commited.

Also, I'd like to work on the AccessExclusiveLock Event Trigger next,
but wanted this one, more simple, to get acceptance as the way to
approach adding events that are not DDL centric.

This time it's not about which command is running, it's about what the
command is doing.

src/backend/commands/event_trigger.c | 92 ++++++++++++++++++++-
src/backend/commands/tablecmds.c | 35 +++++++-
src/backend/utils/cache/evtcache.c | 2 +
src/include/commands/event_trigger.h | 1 +
src/include/utils/evtcache.h | 3 +-
src/test/regress/expected/event_trigger.out | 18 ++++
src/test/regress/sql/event_trigger.sql | 21 +++++
7 files changed, 166 insertions(+), 6 deletions(-)

Dimitri Fontaine 06 63 07 10 78 PostgreSQL : Expertise, Formation et Support

Attachment Content-Type Size
table_rewrite.0.patch text/x-patch 10.4 KB


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