plan: do not cache plan for query on range partition table (#15697) #15749
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cherry-pick #15697 to release-3.1
What problem does this PR solve?
Issue Number: close #15720
Problem Summary:
Query on range partition may return error when using prepared plan cache, because table id is written in physical plan. Some user may use partition + plan cache when TiDB 4.0-rc released. So currently let plan-cache do not cache query on range partition table.
What is changed and how it works?
Proposal: xxx
What's Changed:
Add
isRangePartitionto check whether a plan is on range partition table.How it Works:
If a plan is on range partition table, plan cache will not cache it.
Related changes
pingcap/docs/pingcap/docs-cn:pingcap/tidb-ansible:Check List
Tests
Side effects
Release note