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  1. Apache Drill
  2. DRILL-5278

CTTAS store.format=csv, returns one extra record

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Not A Bug
    • Affects Version/s: 1.10.0
    • Fix Version/s: None
    • Component/s: Storage - Text & CSV
    • Labels:
      None

      Description

      When store.format = csv, we see incorrect results returned, an extra record is returned, as compared to when store.format = parquet. The difference is seen when doing a count over a temporary table created in Drill.

      Drill 1.10.0 git commit ID : 300e9349

      Steps to reproduce the problem.

      0: jdbc:drill:schema=dfs.tmp> reset all;
      +-------+---------------+
      |  ok   |    summary    |
      +-------+---------------+
      | true  | ALL updated.  |
      +-------+---------------+
      1 row selected (0.279 seconds)
      0: jdbc:drill:schema=dfs.tmp> ALTER SESSION SET `store.format`='csv';
      +-------+------------------------+
      |  ok   |        summary         |
      +-------+------------------------+
      | true  | store.format updated.  |
      +-------+------------------------+
      1 row selected (0.21 seconds)
      0: jdbc:drill:schema=dfs.tmp> CREATE TEMPORARY TABLE dfs.tmp.temp_tbl
      . . . . . . . . . . . . . . > AS
      . . . . . . . . . . . . . . > SELECT * FROM typeall_l;
      +-----------+----------------------------+
      | Fragment  | Number of records written  |
      +-----------+----------------------------+
      | 0_0       | 105                        |
      +-----------+----------------------------+
      1 row selected (0.233 seconds)
      0: jdbc:drill:schema=dfs.tmp> SELECT COUNT(*) FROM dfs.tmp.temp_tbl;
      +---------+
      | EXPR$0  |
      +---------+
      | 106     |
      +---------+
      1 row selected (0.189 seconds)
      0: jdbc:drill:schema=dfs.tmp> drop table dfs.tmp.temp_tbl;
      +-------+-------------------------------------+
      |  ok   |               summary               |
      +-------+-------------------------------------+
      | true  | Temporary table [temp_tbl] dropped  |
      +-------+-------------------------------------+
      1 row selected (0.186 seconds)
      0: jdbc:drill:schema=dfs.tmp> ALTER SESSION SET `store.format`='parquet';
      +-------+------------------------+
      |  ok   |        summary         |
      +-------+------------------------+
      | true  | store.format updated.  |
      +-------+------------------------+
      1 row selected (0.196 seconds)
      0: jdbc:drill:schema=dfs.tmp> CREATE TEMPORARY TABLE dfs.tmp.temp_tbl
      . . . . . . . . . . . . . . > AS
      . . . . . . . . . . . . . . > SELECT * FROM typeall_l;
      +-----------+----------------------------+
      | Fragment  | Number of records written  |
      +-----------+----------------------------+
      | 0_0       | 105                        |
      +-----------+----------------------------+
      1 row selected (0.263 seconds)
      0: jdbc:drill:schema=dfs.tmp> SELECT COUNT(*) FROM dfs.tmp.temp_tbl;
      +---------+
      | EXPR$0  |
      +---------+
      | 105     |
      +---------+
      1 row selected (0.169 seconds)
      0: jdbc:drill:schema=dfs.tmp> drop table dfs.tmp.temp_tbl;
      +-------+-------------------------------------+
      |  ok   |               summary               |
      +-------+-------------------------------------+
      | true  | Temporary table [temp_tbl] dropped  |
      +-------+-------------------------------------+
      1 row selected (0.165 seconds)
      0: jdbc:drill:schema=dfs.tmp>
      

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            • Assignee:
              Unassigned
              Reporter:
              khfaraaz Khurram Faraaz
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              • Created:
                Updated:
                Resolved: