pg_resetxlog.

Simon

Matteo Beccati

information, and add a -r option to reset pg_control without affecting
xlog.

yuanjia lee

* -Allow WAL information to recover corrupted pg_controldata

set to the large object context ("fscxt"), as this is inevitably a source of
transaction-duration memory leaks.  Not sure why we'd not noticed it before;
maybe people weren't touching a whole lot of LOs in the same transaction
before the 8.1 pg_dump changes.  Per report from Wayne Conrad.

Backpatched as far as 8.1, but the problem doubtless goes all the way back.
I'm disinclined to spend the time to try to verify that the older branches
would still work if patched, seeing that this code was significantly modified
for 8.0 and again for 8.1, and that we don't have any trouble reports before
8.1.  (Maybe the leaks were smaller before?)

thereby saving a visit to the metapage in most index searches/updates.
This wouldn't actually save any I/O (since in the old regime the metapage
generally stayed in cache anyway), but it does provide a useful decrease
in bufmgr traffic in high-contention scenarios.  Per my recent proposal.

implied by the predicate of a partial index being used to scan a table.
However, this optimization is unsafe in an UPDATE, DELETE, or SELECT FOR
UPDATE query, because the quals need to be rechecked by EvalPlanQual if
there's an update conflict.  Per example from Jean-Samuel Reynaud.

configure.

equals sign.

 David Wheeler

documentation sections.  Also update SET/RESET to be consistent.

Nicolas Barbier

use RESET CONNECTION:

< * Add RESET SESSION command to reset all session state
> * Add RESET CONNECTION command to reset all session state
447c447
<   notify the protocol when a RESET SESSION command is used.
>   notify the protocol when a RESET CONNECTION command is used.

< * Add RESET CONNECTION command to reset all session state
> * Add RESET SESSION command to reset all session state
447c447
<   notify the protocol when a RESET CONNECTION command is used.
>   notify the protocol when a RESET SESSION command is used.

Hans-J?rgen Sch?nig

< 	o %Prevent child tables from altering or dropping constraints
<           like CHECK that were inherited from the parent table
< 	  like CHECK that are inherited by child tables
<
< 	  Dropping constraints should only be possible with CASCADE.
<
> 	  like CHECK that are inherited by child tables unless CASCADE
> 	  is used
> 	o %Prevent child tables from altering or dropping constraints
>           like CHECK that were inherited from the parent table

(pgsql-committers@postgresql.org).

> * -Add transaction_timestamp(), statement_timestamp(), clock_timestamp()

transaction_timestamp() (just like now()).

Also update statement_timeout() to mention it is statement arrival time
that is measured.

Catalog version updated.

        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.

   o -Add support for day-time syntax, INTERVAL '1 2:03:04'DAY TO
      SECOND

     o -Add support for day-time syntax, INTERVAL '1 2:03:04' DAY TO
        SECOND

Report by Kris Jurka

accuracy expected by the regression tests.  Per suggestion from
Martijn van Oosterhout.

Report from Gevik Babakhani.

Mark Morgan Lloyd

We track the owner in pg_type instead, as that is the place where the owner is
changed on ALTER TYPE ... OWNER TO.

< * -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?
>
>   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.
>

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.