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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2017-08-03 11:36:44 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2017-08-03 11:36:44 -0400 |
| commit | 90ef2c2314187b00e037a4b347b5d62eec387aac (patch) | |
| tree | e1327589f0da9a2f643461e98edde0f718324af7 | |
| parent | 5fc7056a5393c35d8f4c38d8d22cbee7cc28428e (diff) | |
| download | sqlalchemy-90ef2c2314187b00e037a4b347b5d62eec387aac.tar.gz | |
- 1.0.19
Change-Id: I65ebe00fa7372151210a1f177f5417ac08c41586
| -rw-r--r-- | doc/build/changelog/changelog_10.rst | 18 | ||||
| -rw-r--r-- | doc/build/changelog/unreleased_10/4035.rst | 15 |
2 files changed, 17 insertions, 16 deletions
diff --git a/doc/build/changelog/changelog_10.rst b/doc/build/changelog/changelog_10.rst index 7dd702325..5a441bb0a 100644 --- a/doc/build/changelog/changelog_10.rst +++ b/doc/build/changelog/changelog_10.rst @@ -18,7 +18,23 @@ .. changelog:: :version: 1.0.19 - :include_notes_from: unreleased_10 + :released: August 3, 2017 + + .. change:: + :tags: bug, oracle, performance, py2k + :tickets: 4035 + :versions: 1.0.19, 1.1.13, 1.2.0b3 + + Fixed performance regression caused by the fix for :ticket:`3937` where + cx_Oracle as of version 5.3 dropped the ``.UNICODE`` symbol from its + namespace, which was interpreted as cx_Oracle's "WITH_UNICODE" mode being + turned on unconditionally, which invokes functions on the SQLAlchemy + side which convert all strings to unicode unconditionally and causing + a performance impact. In fact, per cx_Oracle's author the + "WITH_UNICODE" mode has been removed entirely as of 5.1, so the expensive unicode + conversion functions are no longer necessary and are disabled if + cx_Oracle 5.1 or greater is detected under Python 2. The warning against + "WITH_UNICODE" mode that was removed under :ticket:`3937` is also restored. .. changelog:: :version: 1.0.18 diff --git a/doc/build/changelog/unreleased_10/4035.rst b/doc/build/changelog/unreleased_10/4035.rst deleted file mode 100644 index b1dcd7dcc..000000000 --- a/doc/build/changelog/unreleased_10/4035.rst +++ /dev/null @@ -1,15 +0,0 @@ -.. change:: - :tags: bug, oracle, performance, py2k - :tickets: 4035 - :versions: 1.0.19, 1.1.13, 1.2.0b3 - - Fixed performance regression caused by the fix for :ticket:`3937` where - cx_Oracle as of version 5.3 dropped the ``.UNICODE`` symbol from its - namespace, which was interpreted as cx_Oracle's "WITH_UNICODE" mode being - turned on unconditionally, which invokes functions on the SQLAlchemy - side which convert all strings to unicode unconditionally and causing - a performance impact. In fact, per cx_Oracle's author the - "WITH_UNICODE" mode has been removed entirely as of 5.1, so the expensive unicode - conversion functions are no longer necessary and are disabled if - cx_Oracle 5.1 or greater is detected under Python 2. The warning against - "WITH_UNICODE" mode that was removed under :ticket:`3937` is also restored. |