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https://issues.apache.org/jira/browse/TORQUE-96?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Fox closed TORQUE-96.
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> Can not use * or ? in LIKE clauses
> ----------------------------------
>
> Key: TORQUE-96
> URL: https://issues.apache.org/jira/browse/TORQUE-96
> Project: Torque
> Issue Type: Bug
> Components: Runtime
> Affects Versions: 3.3-RC3, 3.3
> Reporter: CG Monroe
> Priority: Minor
> Fix For: 4.0-beta1
>
>
> If you have a ? or * in a like criteria, they get replaced with "_" and "%"
> in the SqlExpression class. However, this causes problems if you want to
> search for these characters.
> If you try to escape them with a \, the SQL generated is invalid for some
> DB's (Like MS SQL). This causes an SQLException to be thrown with text like:
> Invalid escape sequence. Valid characters after ESC are: an ESC pair,
> underscore, percent sign
> My memory is that % and _ are the SQL standard wild card/match characters.
> So, is the bug here that since ? and * are non-standard
> they should not be processed?
> If for some reason they need to be processed, do we go down the road of
> having a Torque escape character so that these characters can be searched?
> But this leads to possibly requiring stuff like "\\\\" in criterias to get an
> escaped \\ to the SQL parser so that single \ can be passed. This can be
> very confusing and would need to be documented correctly somewhere.
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