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7b90469b71
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Tom Lane 7b90469b71 Allow adding values to an enum type created in the current transaction. 
Normally it is unsafe to allow ALTER TYPE ADD VALUE in a transaction block,
because instances of the value could be added to indexes later in the same
transaction, and then they would still be accessible even if the
transaction rolls back.  However, we can allow this if the enum type itself
was created in the current transaction, because then any such indexes would
have to go away entirely on rollback.

The reason for allowing this is to support pg_upgrade's new usage of
pg_restore --single-transaction: in --binary-upgrade mode, pg_dump emits
enum types as a succession of ALTER TYPE ADD VALUE commands so that it can
preserve the values' OIDs.  The support is a bit limited, so we'll leave
it undocumented.

Andres Freund
2012-12-01 14:27:30 -05:00
config Rename USE_INLINE to PG_USE_INLINE 2012-10-09 11:17:33 -03:00
contrib In pg_upgrade, remove 'set -x' from test script. 2012-12-01 12:07:14 -05:00
doc COPY FREEZE and mark committed on fresh tables. 2012-12-01 12:54:20 +00:00
src Allow adding values to an enum type created in the current transaction. 2012-12-01 14:27:30 -05:00
.gitignore
aclocal.m4
configure Remove -Wlogical-op from standard compiler flags 2012-11-23 16:24:24 -05:00
configure.in Remove -Wlogical-op from standard compiler flags 2012-11-23 16:24:24 -05:00
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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/.