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Support reading partition table for index lookup reader #24154

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qw4990 opened this issue Apr 20, 2021 · 0 comments · Fixed by #24197
Closed

Support reading partition table for index lookup reader #24154

qw4990 opened this issue Apr 20, 2021 · 0 comments · Fixed by #24197
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sig/execution SIG execution type/enhancement The issue or PR belongs to an enhancement. type/new-feature

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qw4990 commented Apr 20, 2021 •
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A subitem of #24150.
To read partition tables, IndexLookUp needs to be wrapped in another executor PartitionTableExec, since PartitionTableExec is not concurrent, so the performance is unacceptable.
To solve this problem, we decided to make IndexLookUp support direct reading, which means it has the ability to read partition tables directly instead of being wrapped in another executor.
@qw4990 qw4990 added type/enhancement The issue or PR belongs to an enhancement. type/new-feature labels Apr 20, 2021
@qw4990 qw4990 mentioned this issue Apr 20, 2021
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@qw4990 qw4990 changed the title Make the executor IndexLookUp support direct reading Support reading partition table for index lookup reader Apr 20, 2021
@qw4990 qw4990 added the sig/execution SIG execution label Apr 20, 2021
@qw4990 qw4990 mentioned this issue Apr 22, 2021
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@qw4990 qw4990 self-assigned this Apr 25, 2021
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execution: make IndexLookUpReader support reading partition table directly qw4990/tidb
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