pg_upgrade fails - Mailing list pgsql-admin

From Artem Tomyuk
Subject pg_upgrade fails
Date
Msg-id CANYYVqKfT_Qu7fxMoUjJG51KyOMNim3Yc7GXnbdXqbGcuNqWSw@mail.gmail.com
Whole thread Raw
Responses Re: pg_upgrade fails  (Keith <keith@keithf4.com>)
Re: pg_upgrade fails  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-admin
Hi.
Trying to upgrade from 9.1 to 9.4 
Upgrade fails with error:

Could not load library "$libdir/dblink"

ERROR:  could not load library "/usr/pgsql-9.4/lib/dblink.so": /usr/pgsql-9.4/lib/dblink.so: undefined symbol: PQsetSingleRowMode


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