You want to do something like GRANT ALL ON 'foo%' TO webuser.
You can't do this directly from psql - you'll need to write a shell-script or plpgsql function to automate it for you.
You can use the following shell script:
###### start of grantall.sh #######
#!/bin/ash
SQL="SELECT relname FROM pg_class WHERE (relkind = 'r' OR relkind = 'S')
AND relname !~ '^pg_' ORDER BY relname"
OBJ=`psql -t -c "${SQL}" $1`
# OBJ=`echo ${OBJ} | sed 's/EOF//g'`
OBJ=`echo ${OBJ} | sed 's/ /, /g'`
# SQL="REVOKE ALL ON ${OBJ} FROM PUBLIC"
SQL="GRANT ALL ON ${OBJ} TO PUBLIC"
echo ${SQL}
psql -c "${SQL}" $1
###### end of grantall.sh #######
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Or you can use this plpgsql function: select pgx_grant('ALL','comp%','nobody');
-- pgx_grant(PRIVILEGE, TABLES, USER)
-- Grants PRIVILEGE to USER on objects like TABLES%
-- Grants to tables, views and sequences.
--
CREATE FUNCTION pgx_grant(text,text,text) returns int4 as '
DECLARE
priv ALIAS FOR $1;
patt ALIAS FOR $2;
user ALIAS FOR $3;
obj record;
num integer;
BEGIN
num:=0;
FOR obj IN SELECT relname FROM pg_class
WHERE relname LIKE patt || \'%\' AND relkind in (\'r\',\'v\',\'S\') LOOP
EXECUTE \'GRANT \' || priv || \' ON \' || obj.relname || \' TO \' || user;
num := num + 1;
END LOOP;
RETURN num;
END;
' language 'plpgsql';
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