軟體下載 PostgreSQL 9.3.4 (32-bit)

檔案名稱 postgresql-9.3.4-1-windows.exe

PostgreSQL 9.3.4 (32-bit) 軟體下載

軟體資訊
檔案版本 PostgreSQL 9.3.4 (32-bit)

檔案名稱 postgresql-9.3.4-1-windows.exe
檔案大小 50.39 MB
更新日期 2014-03-21
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軟體介紹 & 更新資訊

PostgreSQL 9.3.4 (32-bit)
PostgreSQL 是一個功能強大的開源對象關係數據庫系統。它擁有超過 15 年的積極開發和經過驗證的架構,在可靠性,數據完整性和正確性方面贏得了良好聲譽。它運行在所有主要操作系統上,包括 Linux,UNIX(AIX,BSD,HP-UX,SGI IRIX,Mac OS X,Solaris,Tru64)和 Windows。PostgreSQL 是一個功能強大的對象關係數據庫管理系統! 它完全兼... PostgreSQL (32-bit) 軟體介紹

What's new in this version:

Fix WAL replay of locking an already-updated tuple:
- This error caused updated rows to not be found by index scans, resulting in inconsistent query results depending on whether an index scan was used. Subsequent processing could result in constraint violations, since the previously updated row would not be found by later index searches, thus possibly allowing conflicting rows to be inserted. Since this error is in WAL replay, it would only manifest during crash recovery or on standby servers. The improperly-replayed case most commonly arises when a table row that is referenced by a foreign-key constraint is updated concurrently with creation of a referencing row. Restore GIN metapages unconditionally to avoid torn-page risk:
- Although this oversight could theoretically result in a corrupted index, it is unlikely to have caused any problems in practice, since the active part of a GIN metapage is smaller than a standard 512-byte disk sector. Avoid race condition in checking transaction commit status during receipt of a NOTIFY message:
- This prevents a scenario wherein a sufficiently fast client might respond to a notification before database updates made by the notifier have become visible to the recipient. Allow materialized views to be referenced in UPDATE and DELETE commands:
- Previously such queries failed with a complaint about not being able to lock rows in the materialized view. Allow regular-expression operators to be terminated early by query cancel requests:
- This prevents scenarios wherein a pathological regular expression could lock up a server process uninterruptably for a long time. Remove incorrect code that tried to allow OVERLAPS with single-element row arguments:
- This code never worked correctly, and since the case is neither specified by the SQL standard nor documented, it seemed better to remove it than fix it. Avoid getting more than AccessShareLock when de-parsing a rule or view:
- This oversight resulted in pg_dump unexpectedly acquiring RowExclusiveLock locks on tables mentioned as the targets of INSERT/UPDATE/DELETE commands in rules. While usually harmless, that could interfere with concurrent transactions that tried to acquire, for example, ShareLock on those tables. Improve performance of index endpoint probes during planning:
- This change fixes a significant performance problem that occurred when there were many not-yet-committed rows at the end of the index, which is a common situation for indexes on sequentially-assigned values such as timestamps or sequence-generated identifiers. Remove the correct per-database statistics file during DROP DATABASE:
- This fix prevents a permanent leak of statistics file space. Users who have done many DROP DATABASE commands since upgrading to PostgreSQL 9.3 may wish to check their statistics directory and delete statistics files that do not correspond to any existing database. Please note that db_0.stat should not be removed. Fix walsender ping logic to avoid inappropriate disconnects under continuous load:
- walsender failed to send ping messages to the client if it was constantly busy sending WAL data; but it expected to see ping responses despite that, and would therefore disconnect once wal_sender_timeout elapsed. Add read-only data_checksums parameter to display whether page checksums are enabled:
- Without this parameter, determining the state of checksum processing was difficult. Prevent interrupts while reporting non-ERROR messages:
- This guards against rare server-process freezeups due to recursive entry to syslog(), and perhaps other related problems. Fix tracking of psql script line numbers during copy from out-of-line data:
- copy ... from incremented the script file line number for each data line, even if the data was not coming from the script file. This mistake resulted in wrong line numbers being reported for any errors occurring later in the same script file. Fix contrib/postgres_fdw to handle multiple join conditions properly:
- This oversight could result in sending WHERE clauses to the remote server for execution even though the clauses are not known to have the same semantics on the remote server (for example, clauses that use non-built-in operators). The query might succeed anyway, but it could also fail with errors from the remote server, or worse give silently wrong answers.
- Use non-default selectivity estimates for value IN (list) and value operator ANY (array) expressions when the righthand side is a stable expression
- Fix walsender's failure to shut down cleanly when client is pg_receivexlog
- Check WAL level and hot standby parameters correctly when doing crash recovery that will be followed by archive recovery
- Fix test to see if hot standby connections can be allowed immediately after a crash
- Fix memory leak in PL/Perl when returning a composite result, including multiple-OUT-parameter cases
- Prevent intermittent "could not reserve shared memory region" failures on recent Windows versions
- Update time zone data files to tzdata release 2014a for DST law changes in Fiji and Turkey, plus historical changes in Israel and Ukraine.

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PostgreSQL 9.3.4 (32-bit) Download

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