pingcap/tidb
Ver no GitHubPartial2Mode is not necessary in hash aggregation
Open
#15.271 aberto em 10 de mar. de 2020
help wantedsig/executiontype/enhancementtype/performance
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Description
Feature Request
Is your feature request related to a problem? Please describe:
hash aggregation with Coprocessor fetches partial results from storage and runs
Partial2Mode, partial results --> partial resultsFinalMode, partial results --> final results
It seems that Partial2Mode is a redundant run, we can remove it for better code and performance.
Describe the feature you'd like:
Describe alternatives you've considered:
Teachability, Documentation, Adoption, Migration Strategy: