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This is an automated cherry-pick of pingcap#16922
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Signed-off-by: ti-chi-bot <[email protected]>
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Oreoxmt authored and ti-chi-bot committed Apr 2, 2024
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## Indexing and constraints

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| Indexing and constraints | 7.6 | 7.5 | 7.1 | 6.5 | 6.1 | 5.4 | 5.3 | 5.2 | 5.1 | 5.0 | 4.0 |
|---|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
| [Expression indexes](/sql-statements/sql-statement-create-index.md#expression-index) [^2] | Y | Y | Y | Y | E | E | E | E | E | E | E |
Expand All @@ -63,6 +64,26 @@ You can try out TiDB features on [TiDB Playground](https://play.tidbcloud.com/?u
| [Multi-valued indexes](/sql-statements/sql-statement-create-index.md#multi-valued-indexes) | Y | Y | Y | N | N | N | N | N | N | N | N |
| [Foreign key](/constraints.md#foreign-key) | E | E | E | N | N | N | N | N | N | N | N |
| [TiFlash late materialization](/tiflash/tiflash-late-materialization.md) | Y | Y | Y | N | N | N | N | N | N | N | N |
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| Indexing and constraints | 8.0 | 7.6 | 7.5 | 7.1 | 6.5 | 6.1 | 5.4 | 5.3 | 5.2 | 5.1 | 5.0 | 4.0 |
|---|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
| [Expression indexes](/sql-statements/sql-statement-create-index.md#expression-index) [^2] | Y | Y | Y | Y | Y | E | E | E | E | E | E | E |
| [Columnar storage (TiFlash)](/tiflash/tiflash-overview.md) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| [Use FastScan to accelerate queries in OLAP scenarios](/tiflash/use-fastscan.md) | Y | Y | Y | Y | E | N | N | N | N | N | N | N |
| [RocksDB engine](/storage-engine/rocksdb-overview.md) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| [Titan plugin](/storage-engine/titan-overview.md) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| [Titan Level Merge](/storage-engine/titan-configuration.md#level-merge-experimental) | E | E | E | E | E | E | E | E | E | E | E | E |
| [Use buckets to improve scan concurrency](/tune-region-performance.md#use-bucket-to-increase-concurrency) | E | E | E | E | E | E | N | N | N | N | N | N |
| [Invisible indexes](/sql-statements/sql-statement-create-index.md#invisible-index) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | N |
| [Composite `PRIMARY KEY`](/constraints.md) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| [`CHECK` constraints](/constraints.md#check) | Y | Y | Y | N | N | N | N | N | N | N | N | N |
| [Unique indexes](/constraints.md) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| [Clustered index on integer `PRIMARY KEY`](/clustered-indexes.md) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y |
| [Clustered index on composite or non-integer key](/clustered-indexes.md) | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | Y | N |
| [Multi-valued indexes](/sql-statements/sql-statement-create-index.md#multi-valued-indexes) | Y | Y | Y | Y | N | N | N | N | N | N | N | N |
| [Foreign key](/constraints.md#foreign-key) | E | E | E | E | N | N | N | N | N | N | N | N |
| [TiFlash late materialization](/tiflash/tiflash-late-materialization.md) | Y | Y | Y | Y | N | N | N | N | N | N | N | N |
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## SQL statements

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