[jira] (FLINK-3849) Add FilterableTableSource interface and translation rule
Title: Message Title ASF GitHub Bot commented on FLINK-3849 Re: Add FilterableTableSource interface and translation rule Github user fhueske commented on the issue: https://github.com/apache/flink/pull/3166 Scalar functions can of course not be executed by the source. However, sources need to group the filter conditions into supported and unsupported expressions in any case. Unsupported would also include "I don't know this _expression_". So I think, there would not be additional implementation overhead on the TableSource side but potential gains in performance when pushing everything down. Add Comment This message was sent by Atlassian JIRA (v6.3.15#6346-sha1:dbc023d)
[jira] (FLINK-3849) Add FilterableTableSource interface and translation rule
Title: Message Title ASF GitHub Bot commented on FLINK-3849 Re: Add FilterableTableSource interface and translation rule Github user twalthr commented on the issue: https://github.com/apache/flink/pull/3166 @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. Add Comment This message was sent by Atlassian JIRA (v6.3.15#6346-sha1:dbc023d)
