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https://issues.apache.org/jira/browse/IBATIS-115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12615656#action_12615656
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chris marx commented on IBATIS-115:
-----------------------------------
why not just stick with extends?
> automapping and/or ignoreMissingColumns
> ---------------------------------------
>
> Key: IBATIS-115
> URL: https://issues.apache.org/jira/browse/IBATIS-115
> Project: iBatis for Java
> Issue Type: New Feature
> Components: SQL Maps
> Affects Versions: 2.0.9b
> Reporter: ow
> Attachments: ignore-missing-cols.zip
>
>
> This was requested about a year ago. Somewhat similar to what Ruby-on-Rails
> does.
> http://sourceforge.net/forum/forum.php?thread_id=1110825&forum_id=206694
> By: Clinton Begin - cbeginProject Admin
> RE: Same name property/column automapping
> 2004-07-15 16:29
> This has been discussed before, and so has the inverse. That is, not all
> columns in the result map need be present in the db result set. The biggest
> argument against this is performance, as it requires accessing the DB
> metadata, possibly EVERY time a query is run. However, I don't have too much
> problem with it if it is optional. I would sooner see a syntax something
> like:
>
> <!-- FORCES AUTOMAP OF ALL REMAINING COLUMNS -->
>
> <resultMap id=get-product-result class=com.ibatis.example.Product
> autoMapRemaining="true">
> <result property=id
> column=ID_THAT_NEEDS_TO_BE_REMAPPED/>
> <result property=category column=categoryId select=getCategory/>
> </resultMap>
>
> <!-- RELAXES REQUIREMENT THAT ALL COLUMNS MUST BE PRESENT -->
>
> <resultMap id=get-product-result class=com.ibatis.example.Product>
> <result property=description column=DESC optional="true" />
> ...
> </resultMap>
>
> <!-- OR -->
>
> <resultMap id=get-product-result class=com.ibatis.example.Product
> ignoreMissingColumns="true">
> ...
> </resultMap>
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