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Grow the chunk size for window executor #9045

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alivxxx opened this issue Jan 14, 2019 · 0 comments
Open

Grow the chunk size for window executor #9045

alivxxx opened this issue Jan 14, 2019 · 0 comments
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sig/execution SIG execution type/enhancement The issue or PR belongs to an enhancement.

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@alivxxx
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alivxxx commented Jan 14, 2019

Feature Request

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

Currently, window executor always use newFirstChunk to fetch child result, it's not efficient for big tables.

Describe the feature you'd like:

We should be able to grow the chunk size to fetch the child results.
Relates to #6489

Describe alternatives you've considered:

Teachability, Documentation, Adoption, Migration Strategy:
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@zz-jason @alivxxx