The new release includes performance improvements and advanced SQL
features which will support bigger data warehouses, higher-volume
transaction processing, and more complex distributed enterprise
software.
Major new features in this release include:
Roles:
PostgreSQL now supports database roles, which simplify the
management of large numbers of users with complex
overlapping database rights.
IN/OUT Parameters:
PostgreSQL functions now support IN, OUT and INOUT
parameters, which substantially improves support of complex
business logic for J2EE and .NET applications.
Two-Phase Commit (2PC):
Long in demand for WAN applications and heterogeneous data
centers using PostgreSQL, this feature allows
ACID-compliant transactions across widely separated
servers.
Some Performance Enhancements found in this release include:
Improved Multiprocessor (SMP) Performance:
The buffer manager for 8.1 has been enhanced to scale almost
linearly with the number of processors, leading to significant
performance gains on 8-way, 16-way, dual-core, and multi-core
CPU servers.
Bitmap Scan:
Indexes will be dynamically converted to bitmaps in memory when
appropriate, giving up to twenty times faster index performance
on complex queries against very large tables.
Table Partitioning:
The query planner is now able to avoid scanning whole sections
of a large table using a technique known as Constraint
Exclusion.
Shared Row Locking:
PostgreSQL's "better than row-level locking" now supports even
higher levels of concurrency through the addition of shared
row locks for foreign keys.
For a more complete listing of changes in this release, please see the
Release Notes visible at:
http://www.postgresql.org/docs/current/static/release.html#RELEASE-8-1
19 lines
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19 lines
598 B
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--- src/backend/utils/misc/postgresql.conf.sample~ Tue Nov 8 00:45:49 2005
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+++ src/backend/utils/misc/postgresql.conf.sample Tue Nov 8 00:47:16 2005
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@@ -206,6 +206,7 @@
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# - Where to Log -
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+log_destination = 'syslog'
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#log_destination = 'stderr' # Valid values are combinations of
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# stderr, syslog and eventlog,
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# depending on platform.
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@@ -283,6 +284,7 @@
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#log_min_duration_statement = -1 # -1 is disabled, 0 logs all statements
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# and their durations, in milliseconds.
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+silent_mode = on
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#silent_mode = off # DO NOT USE without syslog or
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# redirect_stderr
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