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https://issues.apache.org/jira/browse/DRILL-6518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16742826#comment-16742826
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Arina Ielchiieva commented on DRILL-6518:
-----------------------------------------
Most likely in the second / third quarter of the 2019.
> DESCRIBE command on Drill created parquet table does not return results
> -----------------------------------------------------------------------
>
> Key: DRILL-6518
> URL: https://issues.apache.org/jira/browse/DRILL-6518
> Project: Apache Drill
> Issue Type: New Feature
> Components: Storage - Parquet
> Affects Versions: 1.14.0
> Reporter: Khurram Faraaz
> Priority: Major
> Fix For: Future
>
> Attachments: 0_0_0.parquet, item.drill.parquet_metadata
>
>
> Describe command on a Drill (1.14.0) created parquet table, does not return
> the table description.
> Parquet file and parquet metadata cache file for item table is attached here,
> it has the details of column types in the metadata cache file.
> {noformat}
> Apache Drill 1.14.0-SNAPSHOT
> commit : b447260e49dc4a8c906f5b310c037fe6dd77166f
> {noformat}
> {noformat}
> // DESCRIBE commands returns no information about the table.
> 0: jdbc:drill:schema=dfs.tpcds_sf1_parquet_vi> describe
> dfs.`/drill/testdata/tpcds_sf1/parquet/item`;
> +--------------+------------+--------------+
> | COLUMN_NAME | DATA_TYPE | IS_NULLABLE |
> +--------------+------------+--------------+
> +--------------+------------+--------------+
> No rows selected (0.221 seconds)
> 0: jdbc:drill:schema=dfs.tpcds_sf1_parquet_vi> refresh table metadata
> dfs.`/drill/testdata/tpcds_sf1/parquet/item`;
> +-------+----------------------------------------------------------------------------------+
> | ok | summary |
> +-------+----------------------------------------------------------------------------------+
> | true | Successfully updated metadata for table
> /drill/testdata/tpcds_sf1/parquet/item. |
> +-------+----------------------------------------------------------------------------------+
> 1 row selected (0.173 seconds)
> 0: jdbc:drill:schema=dfs.tpcds_sf1_parquet_vi> describe
> dfs.`/drill/testdata/tpcds_sf1/parquet/item`;
> +--------------+------------+--------------+
> | COLUMN_NAME | DATA_TYPE | IS_NULLABLE |
> +--------------+------------+--------------+
> +--------------+------------+--------------+
> No rows selected (0.229 seconds)
> {noformat}
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