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  1. Spark
  2. SPARK-12957 Derive and propagate data constrains in logical plan
  3. SPARK-13092

Track constraints in ExpressionSet

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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.0.0
    • SQL
    • None

    Description

      Create a new ExpressionSet that operates similar to an AttributeSet for keeping track of constraints. A nice addition to this will be to try and have it do other type of canonicalization (i.e. don't allow both a = b and b = a).

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            marmbrus Michael Armbrust
            sameerag Sameer Agarwal
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