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From twalthr <...@git.apache.org>
Subject [GitHub] flink issue #3166: [FLINK-3849] Add FilterableTableSource interface and Rule...
Date Mon, 30 Jan 2017 14:04:47 GMT
Github user twalthr commented on the issue:

    @fhueske the problem is that we have currently no tool that converts RexNodes back to
expressions. If we want to support all types of expressions, we need to implement a conversion
method for all RexNodes (including Scalar functions) or send the RexNodes in the TableSource.

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