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This includes removing tabs after periods in C comments, which was
applied to back branches, so this change should not effect backpatching.
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Detected by clang's -Wmissing-variable-declarations.
From: Andres Freund <andres@anarazel.de>
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Update all files in head, and files COPYRIGHT and legal.sgml in all back
branches.
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CREATE EVENT TRIGGER forgot to mark the event trigger as a member of its
extension, and pg_dump didn't pay any attention anyway when deciding
whether to dump the event trigger. Per report from Moshe Jacobson.
Given the obvious lack of testing here, it's rather astonishing that
ALTER EXTENSION ADD/DROP EVENT TRIGGER work, but they seem to.
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Consumers are entitled to read the full 64 bytes pertaining to a Name;
using a shorter NULL-terminated string leads to reading beyond the end
its allocation; a SIGSEGV is possible. Use the frequent idiom of
copying to a NameData on the stack. New in 9.3, so no back-patch.
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Make slightly better decisions about indentation than what pgindent
is capable of. Mostly breaking out long function calls into one
line per argument, with a few other minor adjustments.
No functional changes- all whitespace.
pgindent ran cleanly (didn't change anything) after.
Passes all regressions.
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This is the first run of the Perl-based pgindent script. Also update
pgindent instructions.
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Per report by Will Leinweber and Peter Eisentraut
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This event takes place just before ddl_command_end, and is fired if and
only if at least one object has been dropped by the command. (For
instance, DROP TABLE IF EXISTS of a table that does not in fact exist
will not lead to such a trigger firing). Commands that drop multiple
objects (such as DROP SCHEMA or DROP OWNED BY) will cause a single event
to fire. Some firings might be surprising, such as
ALTER TABLE DROP COLUMN.
The trigger is fired after the drop has taken place, because that has
been deemed the safest design, to avoid exposing possibly-inconsistent
internal state (system catalogs as well as current transaction) to the
user function code. This means that careful tracking of object
identification is required during the object removal phase.
Like other currently existing events, there is support for tag
filtering.
To support the new event, add a new pg_event_trigger_dropped_objects()
set-returning function, which returns a set of rows comprising the
objects affected by the command. This is to be used within the user
function code, and is mostly modelled after the recently introduced
pg_identify_object() function.
Catalog version bumped due to the new function.
Dimitri Fontaine and Álvaro Herrera
Review by Robert Haas, Tom Lane
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This also slightly widens the scope of what we support in terms of
post-create events.
KaiGai Kohei, with a few changes, mostly to the comments, by me
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KaiGai Kohei
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A materialized view has a rule just like a view and a heap and
other physical properties like a table. The rule is only used to
populate the table, references in queries refer to the
materialized data.
This is a minimal implementation, but should still be useful in
many cases. Currently data is only populated "on demand" by the
CREATE MATERIALIZED VIEW and REFRESH MATERIALIZED VIEW statements.
It is expected that future releases will add incremental updates
with various timings, and that a more refined concept of defining
what is "fresh" data will be developed. At some point it may even
be possible to have queries use a materialized in place of
references to underlying tables, but that requires the other
above-mentioned features to be working first.
Much of the documentation work by Robert Haas.
Review by Noah Misch, Thom Brown, Robert Haas, Marko Tiikkaja
Security review by KaiGai Kohei, with a decision on how best to
implement sepgsql still pending.
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Dimitri Fontaine
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Dimitri Fontaine, with slight changes by me
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Remove duplicate implementations of catalog munging and miscellaneous
privilege checks. Instead rely on already existing data in
objectaddress.c to do the work.
Author: KaiGai Kohei, changes by me
Reviewed by: Robert Haas, Álvaro Herrera, Dimitri Fontaine
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Fully update git head, and update back branches in ./COPYRIGHT and
legal.sgml files.
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This is again intended to support extensions to the event trigger
functionality. This may go a bit further than we need for that
purpose, but there's some value in being consistent, and the OID
may be useful for other purposes also.
Dimitri Fontaine
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Extracted from a larger patch by Dimitri Fontaine. It is hoped that
this will provide infrastructure for enriching the new event trigger
functionality, but it seems possibly useful for other purposes as
well.
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Per discussion, this seems necessary to allow recovery from broken event
triggers, or broken indexes on pg_event_trigger.
Dimitri Fontaine
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This reduces unnecessary exposure of other headers through htup.h, which
is very widely included by many files.
I have chosen to move the function prototypes to the new file as well,
because that means htup.h no longer needs to include tupdesc.h. In
itself this doesn't have much effect in indirect inclusion of tupdesc.h
throughout the tree, because it's also required by execnodes.h; but it's
something to explore in the future, and it seemed best to do the htup.h
change now while I'm busy with it.
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Commit 3855968f328918b6cd1401dd11d109d471a54d40 added syntax, pg_dump,
psql support, and documentation, but the triggers didn't actually fire.
With this commit, they now do. This is still a pretty basic facility
overall because event triggers do not get a whole lot of information
about what the user is trying to do unless you write them in C; and
there's still no option to fire them anywhere except at the very
beginning of the execution sequence, but it's better than nothing,
and a good building block for future work.
Along the way, add a regression test for ALTER LARGE OBJECT, since
testing of event triggers reveals that we haven't got one.
Dimitri Fontaine and Robert Haas
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They don't actually do anything yet; that will get fixed in a
follow-on commit. But this gets the basic infrastructure in place,
including CREATE/ALTER/DROP EVENT TRIGGER; support for COMMENT,
SECURITY LABEL, and ALTER EXTENSION .. ADD/DROP EVENT TRIGGER;
pg_dump and psql support; and documentation for the anticipated
initial feature set.
Dimitri Fontaine, with review and a bunch of additional hacking by me.
Thom Brown extensively reviewed earlier versions of this patch set,
but there's not a whole lot of that code left in this commit, as it
turns out.
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