docs: add proposal for global index #18982
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PTAL @tiancaiamao |
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| #### Drop Table | ||
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| Add extra one range deletion to clean global indexes. |
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Just dropping the key range started with tableID prefix should work.
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| ## Implementation | ||
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| DDL operations will be implemented first. Plan and executor supports will be implemented after [new PartitionTable executor](https://github.com/pingcap/tidb/issues/18016) is completed. |
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It's almost done already, you can just try the latest master code.
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I just comment on some spells. The content looks good to me. |
Co-authored-by: tiancaiamao <tiancaiamao@gmail.com>
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No release note, Please follow https://github.com/pingcap/community/blob/master/contributors/release-note-checker.md |
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No release note, Please follow https://github.com/pingcap/community/blob/master/contributors/release-note-checker.md |
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LGTM @coocood @wjhuang2016 do you need more take look？ |
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LGTM |
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/run-check_release_note |
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/merge |
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Your auto merge job has been accepted, waiting for:
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/run-all-tests |
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/rebuild |
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@ldeng-ustc merge failed. |
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| #### Drop Partition | ||
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| In global index, all index entries in a partition is not continuous. It is impossible to delete all index entries of a partition in a single range deletion. So, we add a reorg state (just like add index), which scan records in the partition and remove relative index entries. |
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remove the redundant blank space in single range
What problem does this PR solve?
This PR adds proposal for global index support.
What is changed and how it works?
None.
Release note