Timo Walther created FLINK-5429:
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Summary: Code generate types between operators in Table API
Key: FLINK-5429
URL: https://issues.apache.org/jira/browse/FLINK-5429
Project: Flink
Issue Type: New Feature
Components: Table API & SQL
Reporter: Timo Walther
Currently, the Table API uses the generic Row type for shipping records between
operators in underlying DataSet and DataStream API. For efficiency reasons we
should code generate those records. The final design is up for discussion but
here are some ideas:
A row like {{(a: INT NULL, b: INT NOT NULL, c: STRING)}} could look like
{code}
final class GeneratedRow$123 {
public boolean a_isNull;
public int a;
public int b;
public String c;
}
{code}
Types could be generated using Janino in the pre-flight phase. The generated
types should use primitive types wherever possible.
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