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pg_attribute.attoptions.
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This allows functions with multiple OUT parameters returning both one
or multiple records (RECORD or SETOF RECORD).
Jan Urbański, reviewed by Hitoshi Harada
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Emit a log message when creating a named restore point, and improve
documentation for pg_create_restore_point().
Euler Taveira de Oliveira, per suggestions from Thom Brown, with some
additional wordsmithing by me.
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can have duplicates, per request from Tom.
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Add functions plpy.quote_ident, plpy.quote_literal,
plpy.quote_nullable, which wrap the equivalent SQL functions.
To be able to propagate char * constness properly, make the argument
of quote_literal_cstr() const char *. This also makes it more
consistent with quote_identifier().
Jan Urbański, reviewed by Hitoshi Harada, some refinements by Peter
Eisentraut
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"SELECT ... INTO UNLOGGED tabname" works, but wasn't documented; CREATE
UNLOGGED SEQUENCE and CREATE UNLOGGED VIEW failed an assertion, instead
of throwing a sensible error.
Latter issue reported by Itagaki Takahiro; patch review by Tom Lane.
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information schema documentation because it affects several tables.
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File encodings can be specified separately from client encoding.
If not specified, client encoding is used for backward compatibility.
Cases when the encoding doesn't match client encoding are slower
than matched cases because we don't have conversion procs for other
encodings. Performance improvement would be be a future work.
Original patch by Hitoshi Harada, and modified by me.
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This is both very useful in its own right, and an important test case
for the core FDW support.
This commit includes a small refactoring of copy.c to expose its option
checking code as a separately callable function. The original patch
submission duplicated hundreds of lines of that code, which seemed pretty
unmaintainable.
Shigeru Hanada, reviewed by Itagaki Takahiro and Tom Lane
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This commit provides the core code and documentation needed. A contrib
module test case will follow shortly.
Shigeru Hanada, Jan Urbanski, Heikki Linnakangas
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avg() because it was inaccurate.
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Marko Kreen
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from information_schema.referential_constraints might return several in
Postgres because we allow duplicate-named constraints in the same
schema.
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Add a new libpq connection option client_encoding (which includes the
existing PGCLIENTENCODING environment variable), which besides an
encoding name accepts a special value "auto" that tries to determine
the encoding from the locale in the client's environment, using the
mechanisms that have been in use in initdb.
psql sets this new connection option to "auto" when running from a
terminal and not overridden by setting PGCLIENTENCODING.
original code by Heikki Linnakangas, with subsequent contributions by
Jaime Casanova, Peter Eisentraut, Stephen Frost, Ibrar Ahmed
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Add a fdwhandler column to pg_foreign_data_wrapper, plus HANDLER options
in the CREATE FOREIGN DATA WRAPPER and ALTER FOREIGN DATA WRAPPER commands,
plus pg_dump support for same. Also invent a new pseudotype fdw_handler
with properties similar to language_handler.
This is split out of the "FDW API" patch for ease of review; it's all stuff
we will certainly need, regardless of any other details of the FDW API.
FDW handler functions will not actually get called yet.
In passing, fix some omissions and infelicities in foreigncmds.c.
Shigeru Hanada, Jan Urbanski, Heikki Linnakangas
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configuration rules.
Erik Rijkers
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They share the same locking namespace with the existing session-level
advisory locks, but they are automatically released at the end of the
current transaction and cannot be released explicitly via unlock
functions.
Marko Tiikkaja, reviewed by me.
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More generally, arrays are turned in Perl array references, and row and
composite types are turned into Perl hash references. This is done
recursively, in a way that's natural to every Perl programmer.
To avoid a backwards compatibility hit, the string representation of
each structure is also available if the function requests it.
Authors: Alexey Klyukin and Alex Hunsaker.
Some code cleanups by me.
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Peter Eisentraut, reviewed by Steve Singer, Alvaro Herrera, and me.
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Erik Rijkers
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unique exception, or if not used in read committed transaction mode.
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because concat() is a built-in function.
Erik Rijkers
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Thom Brown
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Instead, document how to build it manually.
Per discussion. KaiGai Kohei, with some wordsmithing by me.
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Standby optionally sends back information about oldestXmin of queries
which is then checked and applied to the WALSender's proc->xmin.
GetOldestXmin() is modified slightly to agree with GetSnapshotData(),
so that all backends on primary include WALSender within their snapshots.
Note this does nothing to change the snapshot xmin on either master or
standby. Feedback piggybacks on the standby reply message.
vacuum_defer_cleanup_age is no longer used on standby, though parameter
still exists on primary, since some use cases still exist.
Simon Riggs, review comments from Fujii Masao, Heikki Linnakangas, Robert Haas
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(I'm not entirely sure that we've finished bikeshedding the syntax details,
but the functionality seems OK.)
Pavel Stehule, reviewed by Stephen Frost and Tom Lane
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Fujii Masao, reviewed by Robert Haas, Stephen Frost, and Magnus Hagander.
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Per reports from Fujii Masao.
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The new name, max_pred_locks_per_transaction, is shorter.
Kevin Grittner, per discussion.
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When the new type is an unconstrained domain over the old type, we don't
need to rewrite the table.
Noah Misch and Robert Haas
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Noted by Bernd Helmle
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The original design of pg_available_extensions did not consider the
possibility of version-specific control files. Split it into two views:
pg_available_extensions shows information that is generic about an
extension, while pg_available_extension_versions shows all available
versions together with information that could be version-dependent.
Also, add an SRF pg_extension_update_paths() to assist in checking that
a collection of update scripts provide sane update path sequences.
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This avoids the need to find a way to make PGXS' .sql.in-to-.sql rule
insert the right thing. We'll just deprecate use of that hack for
extensions.
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This allows us to have an unambiguous rule for deconstructing the names
of script files and secondary control files, without having to forbid
extension and version names from containing any dashes. We do have to
forbid them from containing double dashes or leading/trailing dashes,
but neither restriction is likely to bother anyone in practice.
Per discussion, this seems like a better solution overall than the
original design.
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format.
Modify PQescapeStringConn() docs to be consisent with other escaping
functions.
Add mention problems with pre-9.0 versions of libpq using not understanding
bytea hex format to the 9.0 release notes.
Backpatch to 9.0 docs.
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This change causes a multi-step update sequence to behave exactly as if the
updates had been commanded one at a time, including updating the "requires"
dependencies afresh at each step. The initial implementation took the
shortcut of examining only the final target version's "requires" and
changing the catalog entry but once. But on reflection that's a bad idea,
since it could lead to executing old update scripts under conditions
different than they were designed/tested for. Better to expend a few extra
cycles and avoid any surprises.
In the same spirit, if a CREATE EXTENSION FROM operation involves applying
a series of update files, it will act as though the CREATE had first been
done using the initial script's target version and then the additional
scripts were invoked with ALTER EXTENSION UPDATE.
I also removed the restriction about not changing encoding in secondary
control files. The new rule is that a script is assumed to be in whatever
encoding the control file(s) specify for its target version. Since this
reimplementation causes us to read each intermediate version's control
file, there's no longer any uncertainty about which encoding setting would
get applied.
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- collowner field
- CREATE COLLATION
- ALTER COLLATION
- DROP COLLATION
- COMMENT ON COLLATION
- integration with extensions
- pg_dump support for the above
- dependency management
- psql tab completion
- psql \dO command
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When the old type is binary coercible to the new type and the using
clause does not change the column contents, we can avoid a full table
rewrite, though any indexes on the affected columns will still need
to be rebuilt. This applies, for example, when changing a varchar
column to be of type text.
The prior coding assumed that the set of operations that force a
rewrite is identical to the set of operations that must be propagated
to tables making use of the affected table's rowtype. This is
no longer true: even though the tuples in those tables wouldn't
need to be modified, the data type change invalidate indexes built
using those composite type columns. Indexes on the table we're
actually modifying can be invalidated too, of course, but the
existing machinery is sufficient to handle that case.
Along the way, add some debugging messages that make it possible
to understand what operations ALTER TABLE is actually performing
in these cases.
Noah Misch and Robert Haas
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Arrange for the control files to be in $SHAREDIR/extension not
$SHAREDIR/contrib, since we're generally trying to deprecate the term
"contrib" and this is a once-in-many-moons opportunity to get rid of it in
install paths. Fix PGXS to install the $EXTENSION file into that directory
no matter what MODULEDIR is set to; a nondefault MODULEDIR should only
affect the script and secondary extension files. Fix the control file
directory parameter to be interpreted relative to $SHAREDIR, to avoid a
surprising disconnect between how you specify that and what you set
MODULEDIR to.
Per discussion with David Wheeler.
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