You are viewing a plain text version of this content. The canonical link for it is here.
Posted to derby-dev@db.apache.org by "Kristian Waagan (JIRA)" <ji...@apache.org> on 2010/05/12 18:26:42 UTC
[jira] Closed: (DERBY-3907) Save useful length information for
Clobs in store
[ https://issues.apache.org/jira/browse/DERBY-3907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kristian Waagan closed DERBY-3907.
----------------------------------
Closing.
> Save useful length information for Clobs in store
> -------------------------------------------------
>
> Key: DERBY-3907
> URL: https://issues.apache.org/jira/browse/DERBY-3907
> Project: Derby
> Issue Type: Improvement
> Components: JDBC, Store
> Affects Versions: 10.5.1.1
> Reporter: Kristian Waagan
> Assignee: Kristian Waagan
> Fix For: 10.5.1.1
>
> Attachments: derby-3907-1a-alternative_approach.diff, derby-3907-2b-header_write_preparation.diff, derby-3907-2b-header_write_preparation.diff, derby-3907-2b-header_write_preparation.stat, derby-3907-2c-header_write_preparation-PREVIEW.diff, derby-3907-2c-header_write_preparation-PREVIEW.stat, derby-3907-2c-header_write_preparation.diff, derby-3907-2c-header_write_preparation.diff, derby-3907-2c-header_write_preparation.stat, derby-3907-3a-readertoutf8stream_cleanup.diff, derby-3907-3a-readertoutf8stream_cleanup.diff, derby-3907-3a-readertoutf8stream_cleanup.stat, derby-3907-3b-readertoutf8stream_cleanup.diff, derby-3907-4a-add_getStreamWithDescriptor.diff, derby-3907-4a-add_getStreamWithDescriptor.stat, derby-3907-5a-use_getStreamWithDescriptor.diff, derby-3907-5a-use_getStreamWithDescriptor.stat, derby-3907-6a-SQLClob_stream_descriptor_sync.diff, derby-3907-7a-write_new_header_format-PREVIEW.diff, derby-3907-7a-write_new_header_format.diff, derby-3907-7a-write_new_header_format.diff, derby-3907-7a-write_new_header_format.stat, derby-3907-7a1-write_new_header_format.diff, derby-3907-7a2-use_new_framework.diff, derby-3907-7a2-use_new_framework.stat, derby-3907-7a3-use_new_header_format.diff, derby-3907-7a3-use_new_header_format.stat
>
>
> The store should save useful length information for Clobs. This allows the length to be found without decoding the whole data stream.
> The following thread raised the issue on what information to store, and also contains some background information: http://www.nabble.com/Storing-length-information-for-CLOB-on-disk-tp19197535p19197535.html
> The information to store, and the exact format of it, is still to be discussed/determined.
> Currently two bytes are set aside for length information, which is inadequate.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.