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https://issues.apache.org/jira/browse/FLINK-19819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yun Gao updated FLINK-19819:
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Fix Version/s: 1.16.0
> SourceReaderBase supports limit push down
> -----------------------------------------
>
> Key: FLINK-19819
> URL: https://issues.apache.org/jira/browse/FLINK-19819
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / Common
> Reporter: Jingsong Lee
> Priority: Minor
> Labels: auto-deprioritized-major
> Fix For: 1.15.0, 1.16.0
>
>
> User requirement:
> Users need to look at a few random pieces of data in a table to see what the
> data looks like. So users often use the SQL:
> "select * from table limit 10"
> For a large table, expect to end soon because only a few pieces of data are
> queried.
> For DataStream or BoundedStream, they are push based execution models, so the
> downstream cannot control the end of source operator.
> We need push down limit to source operator, so that source operator can end
> early.
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