[fix](Nereids) remove db readlock before get table from db #38660
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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
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) 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
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) 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
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…38729) pick from master #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
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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
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) 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
morningman
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) (apache#38729) 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
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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