Re: reindex and copy - deadlock? - Mailing list pgsql-performance

From Tom Lane
Subject Re: reindex and copy - deadlock?
Date
Msg-id 18875.1087921568@sss.pgh.pa.us
Whole thread Raw
In response to Re: reindex and copy - deadlock?  (Litao Wu <litaowu@yahoo.com>)
List pgsql-performance
Litao Wu <litaowu@yahoo.com> writes:
> I have changed "reindex table my_table" to:
> psql ...
>   -c "drop index my_index; create index my_index;"

> I do not know what caused this happen, and I
> am also confused. If create index my_index is killed
> by "-9", then my_index should not present in the
> database because it has been dropped before creating.

I believe that the above executes the two commands in a single
transaction.  So if you kill it midway through the CREATE, everything
rolls back and the index is still there.

            regards, tom lane

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