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operations: make sure we use operators that are compatible, as determined
by a mergejoin link in pg_operator. Also, add code to planner to ensure
we don't try to use hashed grouping when the grouping operators aren't
marked hashable.
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Neil Conway
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sublink results and COPY's domain constraint checking. A Const that
isn't really constant is just a Bad Idea(tm). Remove hacks in
parse_coerce and other places that were needed because of the former
klugery.
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--- not needed.
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up code and documentation associated with Param nodes.
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just done for copyfuncs/equalfuncs. Read functions in particular get
a lot shorter than before, and it's much easier to compare an out function
with the corresponding read function to make sure they agree.
initdb forced due to small changes in nodestring format (regularizing
a few cases that were formerly idiosyncratic).
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okay in 7.3, so I think it must have been busted in the recent triggers
patch.
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reliance on macros, in hopes of eliminating silly typos (like copying
to the wrong field) and just generally making it easier to see the forest
instead of the trees. As an example, here is the new code for A_Indices:
static A_Indices *
_copyAIndices(A_Indices *from)
{
A_Indices *newnode = makeNode(A_Indices);
COPY_NODE_FIELD(lidx);
COPY_NODE_FIELD(uidx);
return newnode;
}
static bool
_equalAIndices(A_Indices *a, A_Indices *b)
{
COMPARE_NODE_FIELD(lidx);
COMPARE_NODE_FIELD(uidx);
return true;
}
I plan to redo outfuncs/readfuncs in a similar style, but am committing
what I've got.
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raises pgdb.DatabaseError when any of the fetch*
methods was invoked but previous call to execute* did
not produce any result set or no call was issued yet.
Also, raises pgdb.NotSupportedError when .nextset() is
invoked, instead of NameError.
This behaviour complies with DB-API 2.0.
Thanks for your work!
Timur Irmatov.
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used for the primary key lookup. This will prevent a database lookup
for each connection object that gets created. This could be a significant
optimization on a busy system.
Similarly, the get_attnames method allows for the attributes dictionary
to be installed directly.
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debug output is managed. The user can continue to use the current method
of passing a formatting string to have a replacement done and output will
be sent to the standard output exactly as it did before. In addition they
can set it to a file object, sys.stderr for example, and the query string
will be printed to it. Thay can also set it to a method (function) and the
query string will be passed to that method giving them the maximum flexibility
to do whatever they want with the query string.
I will be working with the PyGreSQL documentation shortly and at that time
will properly document this feature.
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joinclauses is determined accurately for each join. Formerly, the code only
considered joinclauses that used all of the rels from the outer side of the
join; thus for example
FROM (a CROSS JOIN b) JOIN c ON (c.f1 = a.x AND c.f2 = b.y)
could not exploit a two-column index on c(f1,f2), since neither of the
qual clauses would be in the joininfo list it looked in. The new code does
this correctly, and also is able to eliminate redundant clauses, thus fixing
the problem noted 24-Oct-02 by Hans-Jürgen Schönig.
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doesn't already exist using an installed copy of perl. I've tested it
using perl v5.6.1 from ActiveState and all appears to work.
Al Sutton
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Rod Taylor
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-hackers a couple days ago.
Notes/caveats:
- added regression tests for the new functionality, all
regression tests pass on my machine
- added pg_dump support
- updated PL/PgSQL to support per-statement triggers; didn't
look at the other procedural languages.
- there's (even) more code duplication in trigger.c than there
was previously. Any suggestions on how to refactor the
ExecXXXTriggers() functions to reuse more code would be
welcome -- I took a brief look at it, but couldn't see an
easy way to do it (there are several subtly-different
versions of the code in question)
- updated the documentation. I also took the liberty of
removing a big chunk of duplicated syntax documentation in
the Programmer's Guide on triggers, and moving that
information to the CREATE TRIGGER reference page.
- I also included some spelling fixes and similar small
cleanups I noticed while making the changes. If you'd like
me to split those into a separate patch, let me know.
Neil Conway
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one more row from the subplan than the COUNT would appear to require.
This costs a little more logic but a number of people have complained
about the old implementation.
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as elog format strings. Hai-Chen Tu pointed out the problem in
contrib/dbmirror, but it wasn't the only such error.
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Christopher Kings-Lynne.
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(64-bit). Fix it. Per report from Permaine Cheung.
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results due to doing arithmetic on uninitialized values. Add some
documentation about the AT TIME ZONE construct. Update some other
date/time documentation that seemed out of date for 7.3.
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ordering of GROUP BY output due to hash-based aggregation.
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database access outside a transaction; revert bogus performance improvement
in SIBackendInit(); improve comments; add documentation (this part courtesy
Neil Conway).
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comparison file, instead of geometry-positive-zeros. Per report from
Patrick Welche.
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parameter to allow it to be forced off for comparison purposes.
Add ORDER BY clauses to a bunch of regression test queries that will
otherwise produce randomly-ordered output in the new regime.
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jdbc3 metadata responses
Modified Files:
jdbc/org/postgresql/jdbc2/AbstractJdbc2Statement.java
jdbc/org/postgresql/jdbc3/AbstractJdbc3DatabaseMetaData.java
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on a preparedStatement would reset the prepared statment causing subsequent
uses of the preparedStatement to fail (i.e. the following series of calls
would fail: addBatch() executeBatch() addBatch() executBatch()). This is
a regression from 7.2 where this worked correctly. The regression test has
also been modified to explicitly test for this case.
Modified Files:
jdbc/org/postgresql/jdbc1/AbstractJdbc1Statement.java
jdbc/org/postgresql/jdbc2/AbstractJdbc2Statement.java
jdbc/org/postgresql/test/jdbc2/BatchExecuteTest.java
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of groups produced by GROUP BY. This improves the accuracy of planning
estimates for grouped subselects, and is needed to check whether a
hashed aggregation plan risks memory overflow.
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"canceled", so I changed the one remaining usage of the British
spelling ("cancelled") over to the former, and updated the translation
files appropriately.
Neil Conway
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but do it correctly now.
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comparisons in recently-added CheckPointWarning code.
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buffers on stack for short strings.
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The code was not making TupleConstr structs for such catalogs in
several places; with the consequence that the not-null constraint
wasn't actually enforced. With this change,
INSERT INTO pg_proc VALUES('sdf');
generates a 'Fail to add null value' error instead of a core dump.
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- CLUSTER ALL clusters all the tables that have some index with
indisclustered set and the calling user owns.
- CLUSTER tablename clusters the named table, using the index with
indisclustered set. If no index has the bit set, throws elog(ERROR).
- The multi-relation version (CLUSTER ALL) uses a multitransaction
approach, similar to what VACUUM does.
Alvaro Herrera
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Add simple ALTER DATABASE, ALTER TRIGGER, CHECK POINT, CREATE
CONVERSION, CREATE DOMAIN, CREATE LANGUAGE, DEALLOCATE, DROP CONVERSION,
DROP DOMAIN, DROP LANGUAGE, EXECUTE, PREPARE
Complete CAST in CREATE CAST and DROP CAST but doesn't suggest what
should follow.
Add many more SET / SHOW variables to the list. Taken from SHOW ALL
output.
Complete a case sensitive search to allow \dD, \dd, \dS, \ds, \h, \H to
complete properly. But there are no matches, then try a case
insensitive search to allow case conversion. Add all missing help
options.
\Q<tab> -> \q
\dD<tab> -> \dD
\dd<tab> -> \dd
\D<tab><tab><tab> -> \d (with listing of \d? commands)
sel<tab> -> SELECT
Rod Taylor
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Rod Taylor
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Rod Taylor
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few WAL files.
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