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  1. Hive
  2. HIVE-25240

Query Text based MaterializedView rewrite of subqueries

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    Description

      create materialized view mat1 as
select col0 from t1 where col0 > 1;

explain cbo
select col0 from
  (select col0 from t1 where col0 > 1) sub
where col0 = 10;

      HiveProject(col0=[CAST(10):INTEGER])
  HiveFilter(condition=[=($0, 10)])
    HiveTableScan(table=[[default, mat1]], table:alias=[default.mat1])

       

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          causes

          Test - A new unit, integration or system test. HIVE-25279 Fix q.outs caused by concurrent commits of HIVE-25240 and HIVE-25229

          • Major - Major loss of function.
          • Closed

          Test - A new unit, integration or system test. HIVE-25291 Fix q.out files after HIVE-25240

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Closed
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-24274 Implement Query Text based MaterializedView rewrite

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #2387

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              kkasa Krisztian Kasa
              kkasa Krisztian Kasa
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