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From "Kevin Sutter (JIRA)" <>
Subject [jira] Commented: (OPENJPA-407) Cache SQL (or closer precursors to SQL) more aggressively
Date Wed, 17 Oct 2007 22:23:50 GMT


Kevin Sutter commented on OPENJPA-407:

Wow!  That does sound significant.  So, what were the SQLBuffer enhancements?  And, would
those changes be sufficient?  Or, are they dependent on the other changes in your original


> Cache SQL (or closer precursors to SQL) more aggressively
> ---------------------------------------------------------
>                 Key: OPENJPA-407
>                 URL:
>             Project: OpenJPA
>          Issue Type: Improvement
>          Components: jdbc, kernel, query, sql
>    Affects Versions: 0.9.0, 0.9.6, 0.9.7, 1.0.0
>            Reporter: Patrick Linskey
>             Fix For: 1.1.0
>         Attachments: OPENJPA-407.patch
> When data is not available in the data cache, OpenJPA dynamically creates SQL to look
up the requested data. OpenJPA should more aggressively cache this SQL to accelerate pathways
from a cache miss to the database.
> The generated SQL takes a number of factors into account, including the requested records,
transaction status, currently-loaded data, and the current fetch configuration. Any caching
would need to account for these factors as well.

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