On Thursday, February 22, 2018, Vinodh NV <linktovinodh(at)gmail(dot)com> wrote:
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> Postgres hangs for the query "lock table <Tablename> in exclusive mode"
> Can you please let me know what could be the reason and how to resolve it?
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Not readily, but that's why the pg_locks view exists.
https://www.postgresql.org/docs/9.6/static/view-pg-locks.html
David J.