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of planning. This should reduce memory requirements for large joins.
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discussion on pghackers a few days ago.
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to use with a multiple-key index. Formerly we would only extract clauses
that had to do with the first key of the index, which was correct but
didn't exploit the index fully.
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if given a node type it doesn't support. As is, wrong results from a
mergejoin would go undetected.
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nor any OID in the reserved range (1-16383).
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failure to MAXALIGN the start of shmem allocable space. No reports
of trouble here, just compulsive tidiness.
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actually, but who could understand it with no comments? Fix bug
while at it: _bt_orderkeys would try to invoke comparisons on
NULL inputs, given the right sort of redundant quals.
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- connect as appropriate user in pg_restore with db connection
- dump owner of rule in pg_dump
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mergejoinable qual clauses, and add them to the query quals. For
example, WHERE a = b AND b = c will cause us to add AND a = c.
This is necessary to ensure that it's safe to use these variables
as interchangeable sort keys, which is something 7.0 knows how to do.
Should provide a useful improvement in planning ability, too.
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Don't do config.status substitutions into the regression test makefile.
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varlena elements work now. Allow assignment to previously-nonexistent
subscript position to extend array, but only for 1-D arrays and only
if adjacent to existing positions (could do more if we had a way to
represent nulls in arrays, but I don't want to tackle that now).
Arrange for assignment of NULL to an array element in UPDATE to be a
no-op, rather than setting the entire array to NULL as it used to.
(Throwing an error would be a reasonable alternative, but it's never
done that...) Update regress test accordingly.
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by Tom.
Jan
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work as expected. THe underlying implementation is essentially
'SET foo = array_set(foo, 1, bar)', so we have to turn the items
into nested invocations of array_set() to make it work correctly.
Side effect: we now complain about 'UPDATE tab SET foo = bar, foo = baz'
which is illegal per SQL92 but we didn't detect it before.
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a very long time.
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Remove a bunch of crufty code for large-object-based arrays, which is
superseded by TOAST and likely hasn't worked in a long time anyway.
Clean up array code a little, and in particular eliminate its habit
of scribbling on the input array (ie, modifying the input tuple :-().
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left keys during bottom-up index build, and leave some free space
instead of packing the pages to the brim (so as to avoid vast numbers
of page splits during the first interactive insertions).
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calculation, also make it stop when it has a 'good enough' split instead
of exhaustively trying all split points.
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- Support for BLOB output from pg_dump and input via pg_restore
- Support for direct DB connection in pg_restore
- Fixes in support for --insert flag
- pg_dump now outputs in modified OID order
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- Support for direct DB connection in pg_restore
- Fixes in support for --insert flag
- pg_dump now outputs in modified OID order
- various other bug fixes
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one with the plain one.
Jan
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in memory (plain or compressed) in the tuple returned from the heap-am.
So no index will ever contain an external reference.
Jan
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duplicate keys by letting search go to the left rather than right when an
equal key is seen at an upper tree level. Fix poor choice of page split
point (leading to insertion failures) that was forced by chaining logic.
Don't store leftmost key in non-leaf pages, since it's not necessary.
Don't create root page until something is first stored in the index, so an
unused index is now 8K not 16K. (Doesn't seem to be as easy to get rid of
the metadata page, unfortunately.) Massive cleanup of unreadable code,
fix poor, obsolete, and just plain wrong documentation and comments.
See src/backend/access/nbtree/README for the gory details.
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items. Lookup history is now a double linked list, used in
a wrap-around style.
Jan
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The latter updated accordingly. Also add `dist' and `distcheck' targets
to play with, but caveat packager.
Updated backend/bootstrap and backend/parser makefile to make them
marginally builddir aware and fix the usual set of things.
Add rule to automatically remake config.h dependent on config.h.in and
config.status. (Adopted from Autoconf manual and about every other
package.) On a good day we should now have a complete and accurate set
of dependencies throughout everything.
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in a non-safe interpreter, so with full OS access! Language is
restricted to be used by DB superusers.
Added "argisnull n" and "return_null" commands to gain full control
over NULL values from new FMGR capabilities.
Jan
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formatting differences due to new psql.
Jan
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type different from input type but are expecting ExecAgg to insert the
first non-null input as the starting transition value. This has always
been verboten, but wasn't checked for until now...
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NOTE: this implementation of tcl_avg() fails with 'divide by zero'
for zero input rows. It ought to return NULL, but pltcl does not
currently provide a way to do that, so I'm leaving the problem unsolved
for now.
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bothering to clean up the resulting warnings ...
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documentation. Therefore it's now installed by default. If there is no
documentation to be found (i.e., you are not using the distribution)
then this step is skipped.
Add --docdir option to configure to control installation directory.
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portable. Seems to have been added for O_BINARY, which is only needed
for __CYGWIN32__, so include it here only in that case.
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There's now only one transition value and transition function.
NULL handling in aggregates is a lot cleaner. Also, use Numeric
accumulators instead of integer accumulators for sum/avg on integer
datatypes --- this avoids overflow at the cost of being a little slower.
Implement VARIANCE() and STDDEV() aggregates in the standard backend.
Also, enable new LIKE selectivity estimators by default. Unrelated
change, but as long as I had to force initdb anyway...
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seems to be busted though ...
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link needs to specify -lc but doesn't. Quick hack to make it better.
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stuff, but fixing the bug that existed in reporting the constraint name
changes the error line. Patch to expected output enclosed.
Stephan Szabo
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The .DEFAULT rule in backend/Makefile is harmful -- removed.
Replace `::' rules by `:'.
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Read templates after compiler is detected. Convert all templates to real
shell scripts. Rename bsd->openbsd, alpha->osf.
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AlterTableAddConstraint. The major changes from the last patch
are that it should hopefully check for references to temp tables
(not in the shadow case, but at defination time) from permanent tables in
foreign keys and refuse them and that it doesn't allow the table(s)
being constrained to be views (because those cases don't currently
work).
Stephan SzaboThis should be a slighly more complete patch for commands/command.c
AlterTableAddConstraint. The major changes from the last patch
are that it should hopefully check for references to temp tables
(not in the shadow case, but at defination time) from permanent tables in
foreign keys and refuse them and that it doesn't allow the table(s)
being constrained to be views (because those cases don't currently
work).
Stephan Szabo
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