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Posted to ddlutils-dev@db.apache.org by "Thomas Dudziak (JIRA)" <ji...@apache.org> on 2006/10/11 23:55:48 UTC
[jira] Resolved: (DDLUTILS-54) Column comparison does not check on
native types
[ http://issues.apache.org/jira/browse/DDLUTILS-54?page=all ]
Thomas Dudziak resolved DDLUTILS-54.
------------------------------------
Resolution: Fixed
I've added a unit test for this (testIssue54 in org.apache.ddlutils.io.TestAlteration) and apparently this is already fixed.
> Column comparison does not check on native types
> ------------------------------------------------
>
> Key: DDLUTILS-54
> URL: http://issues.apache.org/jira/browse/DDLUTILS-54
> Project: DdlUtils
> Issue Type: Bug
> Components: Core (No specific database)
> Reporter: Konstantinos Stathatos
> Assigned To: Thomas Dudziak
> Priority: Minor
> Fix For: 1.0
>
> Attachments: derby_test.xml, svndiff, zementis_tests.ant
>
>
> The attached Ant script creates a table (in Derby) and then tries to alter it, using the same database description. I would expect the DdlUtils would not try to modify anything as the database has not changed.
> However, the database defines a BOOLEAN column and a FLOAT column which in a Derby are mapped to a SMALLINT column and a DOUBLE column. With such a mapping, next time the columns are compared DdlUtils finds them different since the type codes are different. As a result, it tries to modify the columns even though the modification is not necessary.
> Generally, such modification is really harmless. However, under my particular use case, occasionally a DBA would have to get involved and manually update the database if modifications are needed (i.e. if a non-empty alter sql is generated). This means that taking the extra step to check based on the native types if the modifications are material or not would be important.
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