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[fix](Nereids) remove db readlock before get table from db (#38660) #38730

Merged
merged 1 commit into from
Aug 1, 2024
Merged

[fix](Nereids) remove db readlock before get table from db (#38660) #38730

merged 1 commit into from
Aug 1, 2024

Commits on Aug 1, 2024

  1. [fix](Nereids) remove db readlock before get table from db (apache#38660 

    )

pick from master apache#38660

insert will hold readlock of target table before planning. if nereids
need db readlock after it, will lead to dead lock. because other
statement need to hold db lock before get table lock

for example:

insert: target table read lock -> database read lock
drop table: database write lock -> target table write lock
    @morrySnow
    morrySnow committed Aug 1, 2024
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