Jark Wu created FLINK-6887:
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Summary: Split up CodeGenerator into several specific CodeGenerator
Key: FLINK-6887
URL: https://issues.apache.org/jira/browse/FLINK-6887
Project: Flink
Issue Type: Bug
Components: Table API & SQL
Reporter: Jark Wu
Fix For: 1.4.0
Currently, the {{CodeGenerator}} is very huge and a bit difficult to maintain.
I suggest to split it up into several specific {{XXXCodeGenerator}}.
For example, create {{AggregationFunctionCodeGenerator}} class and make it
extend to {{CodeGenerator}} and move the {{def generateAggregations(...)}}
method to it. The same as {{TableFunctionCollectorCodeGenerator}} and
{{InputFormatCodeGenerator}}.
What do you think? [~fhueske], [~twalthr], [~sunjincheng121]
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