[jira] [Created] (FLINK-17735) Add specialized collecting iterator to Blink planner

[Shang Yuanchun (Jira)]

Caizhi Weng created FLINK-17735:
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             Summary: Add specialized collecting iterator to Blink planner
                 Key: FLINK-17735
                 URL: https://issues.apache.org/jira/browse/FLINK-17735
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / Planner
            Reporter: Caizhi Weng
             Fix For: 1.11.0


Add specialized collecting iterator is needed to implement the algorithms in FLINK-14807

As legacy planner does not have data structures like {{ResettableExternalBuffer}} in Blink planner, we're not implementing the algorithms in legacy planner. Legacy planner just use the current collect implementation.



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