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table_open/table_close with different lock mode

Junwang Zhao <zhjwpku@gmail.com>

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From: Junwang Zhao <zhjwpku@gmail.com>
To: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2023-07-21T06:05:56Z
Lists: pgsql-hackers 
Hey hackers,

I noticed there are some places calling table_open with
RowExclusiveLock but table_close with NoLock, like in function
toast_save_datum.

Can anybody explain the underlying logic, thanks in advance.

-- 
Regards
Junwang Zhao

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Fix corruption of toast indexes with REINDEX CONCURRENTLY