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Tom Lane 61dd4185ff Keep rs_startblock the same during heap_rescan, so that a rescan of a SeqScan 
node starts from the same place as the first scan did.  This avoids surprising
behavior of scrollable and WITH HOLD cursors, as seen in Mark Kirkwood's bug
report of yesterday.

It's not entirely clear whether a rescan should be forced to drop out of the
syncscan mode, but for the moment I left the code behaving the same on that
point.  Any change there would only be a performance and not a correctness
issue, anyway.

Back-patch to 8.3, since the unstable behavior was created by the syncscan
patch.
2009-06-10 18:54:16 +00:00
config Update config.guess and config.sub 2009-04-09 21:33:02 +00:00
contrib Restore dblink_current_query() to being a C-language function, so as to not 2009-06-09 17:41:02 +00:00
doc Correct/improve the datetime_precision field in the information schema. 2009-06-10 07:03:34 +00:00
src Keep rs_startblock the same during heap_rescan, so that a rescan of a SeqScan 2009-06-10 18:54:16 +00:00
aclocal.m4
configure Add documentation string for LDFLAGS_SL in configure --help output. 2009-05-19 22:32:41 +00:00
configure.in Add documentation string for LDFLAGS_SL in configure --help output. 2009-05-19 22:32:41 +00:00
COPYRIGHT Update copyright for 2009. 2009-01-01 17:24:05 +00:00
GNUmakefile.in Modify distdir rule to skip .git directory. 2009-01-15 01:53:49 +00:00
Makefile Remove remains of old depend target. 2007-01-20 17:16:17 +00:00
README Point to our download URL, rather than listing interface in the README 2008-05-06 22:02:12 +00:00
README.CVS

README 

PostgreSQL Database Management System
=====================================
  
This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces, many of which are listed here:

	http://www.postgresql.org/download

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Changes between all PostgreSQL releases are recorded in the
file HISTORY.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
http://www.postgresql.org/download/.  For more information look at our
web site located at http://www.postgresql.org/.