Error during a dump (ts_selectivity, not found)

[Ahmed Ossama <ahmed@xxxxxxxxxxx>]

Hello all,

I am trying to restore a database on a server from a dump taken from a 
different server, but I get the following error:

==============================================================================================================
# pg_restore -Upgsql -d db14 /mnt/backup/__initial_move__/db01_20110114.dump
Password:
pg_restore: [archiver (db)] Error while PROCESSING TOC:
pg_restore: [archiver (db)] Error from TOC entry 25; 1255 2299293 
FUNCTION tsmatchsel_wrapper(internal, oid, internal, integer) pgsql
pg_restore: [archiver (db)] could not execute query: ERROR:  could not 
access file "$libdir/ts_selectivity": No such file or directory
    Command was: CREATE FUNCTION tsmatchsel_wrapper(internal, oid, 
internal, integer) RETURNS double precision
    LANGUAGE c
    AS '$libdir...
pg_restore: [archiver (db)] could not execute query: ERROR:  function 
public.tsmatchsel_wrapper(internal, oid, internal, integer) does not exist
    Command was: ALTER FUNCTION public.tsmatchsel_wrapper(internal, 
oid, internal, integer) OWNER TO pgsql;
pg_restore: [archiver (db)] Error from TOC entry 2189; 2617 2299294 
OPERATOR @-@ pgsql
pg_restore: [archiver (db)] could not execute query: ERROR:  function 
tsmatchsel_wrapper(internal, oid, internal, integer) does not exist
    Command was: CREATE OPERATOR @-@ (
    PROCEDURE = ts_match_qv,
    LEFTARG = tsquery,
    RIGHTARG = tsvector,
    COMMUTATOR = @-@,
   ...
pg_restore: [archiver (db)] could not execute query: ERROR:  operator 
does not exist: tsquery public.@-@ tsvector
    Command was: ALTER OPERATOR public.@-@ (tsquery, tsvector) OWNER TO 
pgsql;
pg_restore: [archiver (db)] Error from TOC entry 2185; 2617 2299295 
OPERATOR @-@ pgsql
pg_restore: [archiver (db)] could not execute query: ERROR:  function 
tsmatchsel_wrapper(internal, oid, internal, integer) does not exist
    Command was: CREATE OPERATOR @-@ (
    PROCEDURE = ts_match_vq,
    LEFTARG = tsvector,
    RIGHTARG = tsquery,
    COMMUTATOR = @-@,
   ...
pg_restore: [archiver (db)] could not execute query: ERROR:  operator 
does not exist: tsvector public.@-@ tsquery
    Command was: ALTER OPERATOR public.@-@ (tsvector, tsquery) OWNER TO 
pgsql;

WARNING: errors ignored on restore: 6
==============================================================================================================

I searched for the library ts_selectivity, but all in vain.

Any advice/hint is very much appreciated.

Best Regards,
Ahmed Ossama

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