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https://issues.apache.org/jira/browse/CALCITE-1895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16106543#comment-16106543
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Chris Baynes commented on CALCITE-1895:
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I've updated the PR with the {{throws_}} and {{IllegalArgumentException}} as
you suggested (I never liked the idea of catching the {{AssertionError}} but
didn't see a more appropriate exception at the time).
As for the test I don't see support for mssql in the calcite-test-dataset,
though I can run an instance on aws to try that locally.
If I write that test in {{JdbcAdapterTest}} will it be run against Mssql on
travis-ci? Is there a config of jdbc dbs that are tested against?
> Substring operator broken for MSSQL
> -----------------------------------
>
> Key: CALCITE-1895
> URL: https://issues.apache.org/jira/browse/CALCITE-1895
> Project: Calcite
> Issue Type: Bug
> Components: jdbc-adapter
> Reporter: Chris Baynes
> Assignee: Julian Hyde
>
> The format mssql uses looks like:
> SUBSTRING(input, start, length)
> but the default is currently to unparse to SUBSTRING(input FROM start FOR
> length)
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