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update tidb-distributed-execution-framework.md (#18268) #18270

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Jul 24, 2024
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update tidb-distributed-execution-framework.md (#18268) #18270

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6 changes: 1 addition & 5 deletions tidb-distributed-execution-framework.md
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Expand Up @@ -40,11 +40,7 @@ Currently, the DXF supports the distributed execution of the [`ADD INDEX`](/sql-

## Limitation

The DXF can only schedule up to 16 tasks (including [`ADD INDEX`](/sql-statements/sql-statement-add-index.md) tasks and [`IMPORT INTO`](/sql-statements/sql-statement-import-into.md) tasks) simultaneously.

## `ADD INDEX` limitation

- Adding indexes on columns with the [`TIMESTAMP`](/data-type-date-and-time.md#timestamp-type) data type through the DXF is not supported, because it might lead to inconsistency between the index and the data.
The DXF can only schedule up to 16 tasks (including [`ADD INDEX`](/sql-statements/sql-statement-add-index.md) tasks and [`IMPORT INTO`](/sql-statements/sql-statement-import-into.md) tasks) simultaneously.

## Prerequisites

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