pingcap / pingcap/tidb

During hashjoin, if the result set returned by the build operator is 0, the probe operator can be notified in time to stop

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sig/execution type/feature-request
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Description

## Feature Request

**Is your feature request related to a problem? Please describe:**

In hashjoin, even if the result set returned by the build operator is 0, it cannot notify the probe operator to end early, resulting in a long execution time of SQL, and the probe operator usually takes a long time to execute.
**Describe the feature you'd like:**

If the result set returned by the build operator is 0, the probe operator can be notified in time to end, thereby improving the execution efficiency of SQL
**Describe alternatives you've considered:**

**Teachability, Documentation, Adoption, Migration Strategy:**

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