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https://issues.apache.org/jira/browse/DERBY-3310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12578496#action_12578496
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Kathey Marsden commented on DERBY-3310:
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I wasn't so sure where to hang it in the code where it would make sense,
especially after
the change was made, so I added a short summary to copyTypesAndLengthsToSource
and referenced the full document. Where in the code would be a good place to
put it? I could add it as
part of the commit log or ...
> ASSERT in MergeSort.checkColumnTypes() disallow legal type conversions
> ----------------------------------------------------------------------
>
> Key: DERBY-3310
> URL: https://issues.apache.org/jira/browse/DERBY-3310
> Project: Derby
> Issue Type: Bug
> Components: SQL
> Affects Versions: 10.4.0.0
> Reporter: Dyre Tjeldvoll
> Priority: Minor
> Attachments: cast-repro.sql, d3310_writeup_1.html,
> derby-3310_diff.txt, derby-3310_diff.txt,
> derby-3310_remove_genNormalizeResultSetNode_diff.txt,
> derby-3310_try1_diff.txt, derby3310_rsn_cleanup_1.txt
>
>
> The following code
> CREATE TABLE U (SNAME VARCHAR(32000), TNAME VARCHAR(32000), C1 BIGINT);
> -- This triggers an ASSERT (because 2 is INTEGER and not BIGINT)
> INSERT INTO U(SNAME, TNAME, C1) SELECT DISTINCT SCHEMANAME, TABLENAME, 2
> FROM SYS.SYSTABLES T JOIN SYS.SYSSCHEMAS S ON T.SCHEMAID = S.SCHEMAID;
> gives
> ERROR XJ001: Java exception: 'ASSERT FAILED col1.getClass() (class
> org.apache.derby.iapi.types.SQLInteger) expected to be the same as
> col2.getClass() (class org.apache.derby.iapi.types.SQLLongint):
> org.apache.derby.shared.common.sanity.AssertFailure'.
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