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o Support ISO INTERVAL syntax if units cannot be determined from
the string, and are supplied after the string
The SQL standard states that the units after the string specify
the units of the string, e.g. INTERVAL '2' MINUTE should
return '00:02:00'. The current behavior has the units
restrict the interval value to the specified unit or unit range,
INTERVAL '70' SECOND returns '00:00:10'.
For syntax that isn't uniquely ISO or PG syntax, like '1' or
'1:30', treat as ISO if there is a range specification clause,
and as PG if there no clause is present, e.g. interpret
'1:30' MINUTE TO SECOND as '1 minute 30 seconds', and
interpret '1:30' as '1 hour, 30 minutes'.
This makes common cases like SELECT INTERVAL '1' MONTH
SQL-standard results. The SQL standard supports a limited
number of unit combinations and doesn't support unit names
in the string. The PostgreSQL syntax is more flexible in
the range of units supported, e.g. PostgreSQL supports
'1 year 1 hour', while the SQL standard does not.
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o -Add support for day-time syntax, INTERVAL '1 2:03:04'DAY TO
SECOND
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o -Add support for day-time syntax, INTERVAL '1 2:03:04' DAY TO
SECOND
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Report by Kris Jurka
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accuracy expected by the regression tests. Per suggestion from
Martijn van Oosterhout.
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Report from Gevik Babakhani.
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Mark Morgan Lloyd
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We track the owner in pg_type instead, as that is the place where the owner is
changed on ALTER TYPE ... OWNER TO.
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< * -Eventually enable escape_string_warning and standard_conforming_strings
> * -Enable escape_string_warning and standard_conforming_strings
> * Make standard_conforming_strings the default in 8.3?
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> When this is done, backslash-quote should be prohibited in non-E''
> strings because of possible confusion over how such strings treat
> backslashes. Basically, '' is always safe for a literal single
> quote, while \' might or might not be based on the backslash
> handling rules.
>
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compatibility for release 7.2 and earlier. I have not altered any
mentions of release 7.3 or later. The release notes were not modified,
so the changes are still documented, just not in the main docs.
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< o Fix psql's backslash commands more consistent
> o Fix psql's \d commands more consistent
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< o Fix psql's \dn for various schema combinations (Neil)
> o Fix psql's backslash commands more consistent
625a626
> http://archives.postgresql.org/pgsql-hackers/2004-11/msg00014.php
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o Fix psql's \dn for various schema combinations (Neil)
http://archives.postgresql.org/pgsql-hackers/2004-11/msg00014.php
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patch separators in COPY.
Backpatch doubleing backslashes suggestion to 8.1.
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not named ones, and replace linear searches of the list with array indexing.
The named-parameter support has been dead code for many years anyway,
and recent profiling suggests that the searching was costing a noticeable
amount of performance for complex queries.
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Intel compiler has a bug in checking for division by NAN
# (NaN == 0), -mp1 fixes it, so someday we might way to add it.
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the Intel compiler.
Jeremy Drake
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permission item:
< o %Allow pg_hba.conf settings to be controlled via SQL
> o %Allow per-database permissions to be set via GRANT
< This would add a function to load the SQL table from
< pg_hba.conf, and one to writes its contents to the flat file.
< The table should have a line number that is a float so rows
< can be inserted between existing rows, e.g. row 2.5 goes
< between row 2 and row 3.
> Allow database connection checks based on GRANT rules in
> addition to the existing access checks in pg_hba.conf.
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to track the number of LWLock acquisitions and the number of times we
block waiting for an LWLock, on a per-process basis. After having needed
this twice in the past few months, seems like it should go into CVS.
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of rejecting palloc(0). Also, tweak like_selectivity() to avoid assuming
the presented pattern is nonempty; although that assumption is valid,
it doesn't really help much, and the new coding is more correct anyway
since it properly handles redundant wildcards. In combination these
changes should eliminate a Coverity warning noted by Martijn.
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failure, to reduce confusion in the log file.
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whenever we start to read within that file. The first page carries
extra identification information that really ought to be checked, but
as the code stood, this was only checked when we switched sequentially
into a new WAL file, or if by chance the starting checkpoint record was
within the first page. This patch ensures that we will detect bogus
'long header' information before we start replaying the WAL sequence.
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symbol for PPC64 hardware. I hadn't known that Apple supported PPC64 at
all, but darn if there aren't 64-bit variant libraries in OS X as well
as support in their gcc.
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< encoding.
> encoding. This requires using mblen() to determine if the
> backslash is inside or outside a multi-byte sequence.
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> o Add new version of PQescapeString() that doesn't double backslashes
> that are part of a client-only multibyte sequence
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> Single-quote is not a valid byte in any supported client-only
> encoding.
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> o Add new version of PQescapeString() that doesn't double
> backslashes when standard_conforming_strings is true and
> non-E strings are used
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our to_* functions were not handling that.
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no evidence that any currently-supported platform needs this, and good
reason to think that any platform that did need it couldn't use the static
libraries anyway --- libpq, at least, has circular references. Removing
the code shuts up tsort warnings about the circular references on some
platforms.
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routine, but perhaps some applications do. Found by Martijn van Oosterhout
using Coverity.
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Per Martijn van Oosterhout.
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> o Add reporting of the current WAL file, perhaps as part of
> partial log file archiving
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Backpatch.
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8.0), and add as suggestion to use log_min_error_statement for this
purpose. I also fixed the code so the first EXECUTE has it's prepare,
rather than the last which is what was in the current code. Also remove
"protocol" prefix for SQL EXECUTE output because it is not accurate.
Backpatch to 8.1.X.
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to occur between pg_start_backup() and pg_stop_backup(), even if the GUC
setting full_page_writes is OFF. Per discussion, doing this in combination
with the already-existing checkpoint during pg_start_backup() should ensure
safety against partial page updates being included in the backup. We do
not have to force full page writes to occur during normal PITR operation,
as I had first feared.
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< o Update pg_dump and psql to use the new COPY libpq API (Christopher)
> o -Update pg_dump and psql to use the new COPY libpq API (Christopher)
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< o %Have pg_dump use multi-statement transactions for INSERT dumps
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entire table load.
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CREATE AGGREGATE aggname (input_type) (parameter_list)
along with the old syntax where the input type was named in the parameter
list. This fits more naturally with the way that the aggregate is identified
in DROP AGGREGATE and other utility commands; furthermore it has a natural
extension to handle multiple-input aggregates, where the basetype-parameter
method would get ugly. In fact, this commit fixes the grammar and all the
utility commands to support multiple-input aggregates; but DefineAggregate
rejects it because the executor isn't fixed yet.
I didn't do anything about treating agg(*) as a zero-input aggregate instead
of artificially making it a one-input aggregate, but that should be considered
in combination with supporting multi-input aggregates.
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> * -Re-enable the GUC full_page_writes in 8.2 when reliability issues have
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update no-longer-existing pages to fall through as no-ops, but make a note
of each page number referenced by such records. If we don't see a later
XLOG entry dropping the table or truncating away the page, complain at
the end of XLOG replay. Since this fixes the known failure mode for
full_page_writes = off, revert my previous band-aid patch that disabled
that GUC variable.
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If a process abandons a wait in LockBufferForCleanup (in practice,
only happens if someone cancels a VACUUM) just before someone else
sends it a signal indicating the buffer is available, it was possible
for the wakeup to remain in the process' semaphore, causing misbehavior
next time the process waited for an lmgr lock. Rather than try to
prevent the race condition directly, it seems best to make the lock
manager robust against leftover wakeups, by having it repeat waiting
on the semaphore if the lock has not actually been granted or denied
yet.
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