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https://issues.apache.org/jira/browse/DRILL-4264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16087705#comment-16087705
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Paul Rogers commented on DRILL-4264:
------------------------------------
Thanks for the explanation! Can you suggest a solution (from the user's view)
that offers the best trade-off between a number of requirements?
Requirements:
* Allow dots in any name (schema, workspace, table, column, directory, file).
* Consistent behavior for all names.
* Compatible with existing queries.
* Familiar to users of similar systems (Hive, Impala, etc.)
Maybe propose a syntax and user-visible rules that achieve the above (as best
we can.) Once we agree on those rules, we can move on to discuss how we'll
implement the rules given Calcite and the Drill execution classes.
> Dots in identifier are not escaped correctly
> --------------------------------------------
>
> Key: DRILL-4264
> URL: https://issues.apache.org/jira/browse/DRILL-4264
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Codegen
> Reporter: Alex
> Assignee: Volodymyr Vysotskyi
>
> If you have some json data like this...
> {code:javascript}
> {
> "0.0.1":{
> "version":"0.0.1",
> "date_created":"2014-03-15"
> },
> "0.1.2":{
> "version":"0.1.2",
> "date_created":"2014-05-21"
> }
> }
> {code}
> ... there is no way to select any of the rows since their identifiers contain
> dots and when trying to select them, Drill throws the following error:
> Error: SYSTEM ERROR: UnsupportedOperationException: Unhandled field reference
> "0.0.1"; a field reference identifier must not have the form of a qualified
> name
> This must be fixed since there are many json data files containing dots in
> some of the keys (e.g. when specifying version numbers etc)
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