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Posted to issues@metamodel.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/10/03 13:08:00 UTC
[jira] [Commented] (METAMODEL-1199) Cache more prepared statements
in JdbcUpdateCallback
[ https://issues.apache.org/jira/browse/METAMODEL-1199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16636919#comment-16636919 ]
ASF GitHub Bot commented on METAMODEL-1199:
-------------------------------------------
GitHub user jakubneubauer opened a pull request:
https://github.com/apache/metamodel/pull/190
Added cache for prepared statements in JdbcUpdateCallback
Closes METAMODEL-1199
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jakubneubauer/metamodel feature/METAMODEL-1199-jdbc-prepared-statements-cache
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/metamodel/pull/190.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #190
----
commit fe9fd8604c8059e57539822f30eb05e8296ad37f
Author: Jakub Neubauer <ja...@...>
Date: 2018-10-03T13:04:53Z
METAMODEL-1199 Added cache for prepared statements in JdbcUpdateCallback. Size can be tweaked via system property.
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> Cache more prepared statements in JdbcUpdateCallback
> ----------------------------------------------------
>
> Key: METAMODEL-1199
> URL: https://issues.apache.org/jira/browse/METAMODEL-1199
> Project: Apache MetaModel
> Issue Type: Improvement
> Reporter: Jakub Neubauer
> Priority: Major
>
> Currently, JdbcUpdateCallback caches exactly one prepared statement. When the UpdateScript executes different statements, the cached statement is always closed and new one is cached.
> Using bigger cache would make it more performant in some scenarios.
> Sometimes it is not possible to cumulate all kinds of statements together in the transaction. Especially when combining inserts - updates - selects.
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