[jira] [Created] (DRILL-6641) TestConvertCountToDirectScan.ensureCorrectCountWithMissingStatistics() test fails randomly

["Volodymyr Vysotskyi (JIRA)" <ji...@apache.org>]

Volodymyr Vysotskyi created DRILL-6641:
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             Summary: TestConvertCountToDirectScan.ensureCorrectCountWithMissingStatistics() test fails randomly
                 Key: DRILL-6641
                 URL: https://issues.apache.org/jira/browse/DRILL-6641
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Volodymyr Vysotskyi
            Assignee: Volodymyr Vysotskyi
             Fix For: 1.15.0


{{TestConvertCountToDirectScan.ensureCorrectCountWithMissingStatistics()}} fails randomly with assertion error:

{noformat}
Found unwanted pattern in plan: DynamicPojoRecordReader
00-00    Screen
00-01      Project(cnt_str=[$0], cnt_total=[$1])
00-02        Scan(groupscan=[files = [/home/vitalii/IdeaProjects/drill-fork/exec/java-exec/target/org.apache.drill.exec.planner.logical.TestConvertCountToDirectScan/dfsTestTmp/1532655133770-0/wide_str_table/0_0_2.parquet, /home/vitalii/IdeaProjects/drill-fork/exec/java-exec/target/org.apache.drill.exec.planner.logical.TestConvertCountToDirectScan/dfsTestTmp/1532655133770-0/wide_str_table/0_0_1.parquet], numFiles = 2, DynamicPojoRecordReader{records = [[0, 2]]}])
{noformat}

This test uses a table with two partitions and it may fail when a partition with set statistics is taken first in the {{ParquetGroupScanStatistics.collect()}} method, which is indirectly called from {{ConvertCountToDirectScan}} rule.



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