The performance of partition table is significantly lower than that of normal table in some scenarios #56085
Labels
component/tablepartition
This issue is related to Table Partition of TiDB.
type/enhancement
The issue or PR belongs to an enhancement.
Enhancement
Normal table
Partition table
SQL
Partition table, slower one
Normal table, faster one
The max_distsql_concurrency for both SQL are equal to one, but partition table has 10 cop tasks, so it's 5x slower than normal table.
We could let partition table has a larger concurrency or let global index supports non-unqiue index.
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