Danny Chan created CALCITE-3271:
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Summary: TVF windowing and EMIT syntax support in Calcite
Key: CALCITE-3271
URL: https://issues.apache.org/jira/browse/CALCITE-3271
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.20.0
Reporter: Danny Chan
Assignee: Danny Chan
Copied from the mailing list:
Calcite has not implemented the syntax in that paper. I would support an effort
to add it (unsurprising, since I am a co-author of that paper).
EMIT STREAM is equivalent to the current SELECT STREAM syntax.
There is no equivalent in current Calcite of the EMIT AFTER WATERMARK, or EMIT
STREAM AFTER DELAY.
HOP, TUMBLE and SESSION are supported in Calcite’s SQL parser, but following
the paper would be replaced with a table function call. We could need to add
HOP, TUMBLE and SESSION table functions. We would also need to make the system
aware of how watermarks flow through these table functions (an area that the
paper does not go into).
Julian
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