Mixing DBLink versions - Mailing list pgsql-admin

From David Jantzen
Subject Mixing DBLink versions
Date
Msg-id 78AE7A6D-1E37-4B74-BFEA-0E94BA9FA2C9@ql2.com
Whole thread Raw
Responses Re: Mixing DBLink versions  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-admin
Hi All,

Due to some historical idiosyncracies in our environment, we have a custom 8.3.7 database installation built from
source. We'd like to install dblink into this, however there are some problems with doing so: 

1) the 8.3.7 database was built on a CentOS 4 build box that has since gone away
2) currently we have only 8.3.9 code built against CentOS 5
3) the GCC compiler on CentOS 4 was quite old
4) possible API changes in dblink between those versions

My question, how risky would it be to copy the dblink.so and .sql files from the CentOS 5 compilation of Postgres 8.3.9
overto the CentOS 4 compilation of Postgres 8.3.7?  If runtime errors result, how severe would they be?  I.e., would
theytake down a postgres backend or possibly the postmaster daemon?  

Thanks,
David

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