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Generate watermarks and set event time using expressions #511

Merged
merged 2 commits into from
Jan 26, 2024
Merged

Generate watermarks and set event time using expressions #511

merged 2 commits into from
Jan 26, 2024

Commits on Jan 26, 2024

  1. Generate watermarks and set event time using expressions 

    Modify the periodic watermark generator to accept a physical expressions
that it uses to calculate the watermark. The expression can be set via a
virtual field in the create table statement, or it defaults to a max
lateness expression. The operator is inserted via a user-defined logical
node.

Add an expression to the projection in the SourceRewriter to set the
event time if present.
    @jbeisen
    jbeisen committed Jan 26, 2024
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  2. move unpacking source projection to QueryToGraphVistor's mutate().

    @jacksonrnewhouse
    jacksonrnewhouse committed Jan 26, 2024
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