[flink] union read from lake with startup timestamp filter#3236
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zuston wants to merge 1 commit intoapache:mainfrom
Open
[flink] union read from lake with startup timestamp filter#3236zuston wants to merge 1 commit intoapache:mainfrom
zuston wants to merge 1 commit intoapache:mainfrom
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Purpose
Leveraging the union read mechanism, we can achieve low disk overhead while streaming long-term data from the data lake. However, when using the DataStream API as described in the documentation, I observed that lake splits are not generated when consuming with a timestamp-based offset.
This PR addresses that limitation by enabling timestamp filter pushdown to the lake layer. Currently, this capability is only supported for log tables. (It is somewhat unintuitive to use timestamp-based consumption for PK tables.)
Brief change log
Tests
API and Format
Documentation