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  1. Calcite
  2. CALCITE-1045

Decorrelate sub-queries in Project and Join

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Details

    • Bug
    • Status: Reopened
    • Major
    • Resolution: Unresolved
    • None
    • None
    • None

    Description

      In CALCITE-816 we created a representation of sub-query in the relational algebra, RexSubQuery, so that we could defer expanding and de-correlating sub-queries until after SqlNode tree has been converted to RelNode tree. But the RelDecorrelator can only reliably handle sub-queries that occur in a Filter (such as WHERE EXISTS or WHERE IN).

      This task would except RelDecorrelator to handle sub-queries in Project (which occur with scalar sub-queries in the SELECT clause) and sub-queries in Join (which occur with scalar sub-queries in the ON clause of a JOIN).

      Attachments

        Issue Links

          blocks

          Task - A task that needs to be done. PHOENIX-2595 Upgrade Calcite-Phoenix to Calcite 1.6

          • Major - Major loss of function.
          • Open
          is blocked by

          Improvement - An improvement or enhancement to an existing feature or task. CALCITE-4808 RelOptUtil.getVariablesUsed should assert that correlated variables are used in scope

          • Major - Major loss of function.
          • Open
          is depended upon by

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-863 AssertionError while translating query with UNNEST and having two correlation conditions

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-709 LIMIT inside scalar sub-query

          • Major - Major loss of function.
          • In Progress

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-551 Sub-query inside aggregate function

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-559 Correlated scalar subquery in WHERE gives error

          • Major - Major loss of function.
          • Closed
          is part of

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-4210 Sub-query in ON clause is not correctly expanded by SqlToRelConverter

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. CALCITE-4340 Correlated Queries in ON clause do not work when referring to left side

          • Major - Major loss of function.
          • Open
          is related to

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-5213 PROJECT_TO_SUBQUERY producing Incorrect tree from nested correlated subqueries in projections with correlations in filters.

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. CALCITE-4812 RelBuilder.join should error multiple correlate ids

          • Major - Major loss of function.
          • Open
          relates to

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-5588 ArrayIndexOutOfBoundsException on "on not exists" or "on exists"

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-5127 Support correlation variables in Project

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. CALCITE-3870 Change the default value of SqlToRelConverter.Config.expand from true to false

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          split to

          Improvement - An improvement or enhancement to an existing feature or task. CALCITE-4686 SubQueryRemoveRule.matchJoin should correctly rewrite all sub-queries

          • Major - Major loss of function.
          • In Progress
          links to

          Web Link GitHub Pull Request #2385

          Activity

            People

              libenchao Benchao Li
              julianhyde Julian Hyde
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