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From "Jacques Nadeau (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-872) Validate column names for strongly-typed tables such as parquet
Date Mon, 16 Jun 2014 20:46:07 GMT

     [ https://issues.apache.org/jira/browse/DRILL-872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jacques Nadeau updated DRILL-872:
---------------------------------

    Fix Version/s:     (was: 1.0.0-BETA1)
                   1.0.0-BETA2

> Validate column names for strongly-typed tables such as parquet
> ---------------------------------------------------------------
>
>                 Key: DRILL-872
>                 URL: https://issues.apache.org/jira/browse/DRILL-872
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Metadata
>            Reporter: Steven Phillips
>            Assignee: Aditya Kishore
>             Fix For: 1.0.0-BETA2
>
>
> Currently, parquet tables, like other filesystem tables, are treated as schema-less tables.
But it would make sense to get the schema by reading and merging the footers from all of the
parquet files. This will allow drill to validate whether a requested column exists, and throw
an error before running the query. It will also remove the need to qualify columns with the
table name or alias when doing a join.



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