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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5775) Select * query on a maprdb binary table fails
Date Wed, 11 Oct 2017 20:21:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16200898#comment-16200898
] 

ASF GitHub Bot commented on DRILL-5775:
---------------------------------------

Github user paul-rogers commented on a diff in the pull request:

    https://github.com/apache/drill/pull/973#discussion_r144124764
  
    --- Diff: contrib/storage-hbase/src/main/java/org/apache/drill/exec/store/hbase/HBaseUtils.java
---
    @@ -139,4 +142,26 @@ public static Filter orFilterAtIndex(Filter currentFilter, int index,
Filter new
         return Bytes.compareTo(left, right) < 0 ? left : right;
       }
     
    +
    +  /**
    +   * Verify the presence of a column family in the schema path of the hbase table or
whether the schema path is
    +   * the row key column.
    +   *
    +   * @param columns List of the selected columns
    +   * @param hTableDesc HTableDescriptor of HBase/MapR-DB_binary table (consists the details
about that table)
    +   * @throws DrillRuntimeException if column family does not exist, or is not row_key
column.
    +   */
    +  public static void verifyColumns(List<SchemaPath> columns, HTableDescriptor hTableDesc)
{
    --- End diff --
    
    As it turns out, this PR is introducing the very ambiguity that DRILL-5830 tried to remove
from DRILL-5546. That is, we now have to separate ways to expand the wildcard: this way and
the project push down way. We need this commit, so we'll accept this for now. But, moving
forward, we should clear up this ambiguity.


> Select * query on a maprdb binary table fails
> ---------------------------------------------
>
>                 Key: DRILL-5775
>                 URL: https://issues.apache.org/jira/browse/DRILL-5775
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - MapRDB
>    Affects Versions: 1.11.0
>            Reporter: Prasad Nagaraj Subramanya
>            Assignee: Vitalii Diravka
>              Labels: ready-to-commit
>             Fix For: 1.12.0
>
>
> Select * query on a maprdb binary table fails with the below exception
> Failed with exception
> java.sql.SQLException: SYSTEM ERROR: IllegalArgumentException: HBaseRecordReader does
not allow column *. Column * should have been converted to list of <row_key, column family1,
column family2, ..., column family_n
> Commit ID - fde0a1df1734e0742b49aabdd28b02202ee2b044



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