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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2021/10/28 18:08:47 UTC

[GitHub] [beam] kennknowles commented on pull request #15826: Minor: Replace usage of SqlExpressionChecker with ExpressionChecker

kennknowles commented on pull request #15826:
URL: https://github.com/apache/beam/pull/15826#issuecomment-954080936


   From the javadoc:
   
    - Tests a SQL expression is SQL true, not against a Java return type. Correctness relies on
             bootstrapped testing of literals and whatever operators, like `=` and `<` are
             used in the expression.
    - There is no implicit table to reference columns from, just literals.
    - Runs tests both via QueryTransform and also via JDBC driver.
    - Requires a pipeline to be provided where it will attach transforms.


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