Postgresql - Changing ownership on all tables

change_db_owner.sh

#!/bin/bash

usage()
{
cat << EOF
usage: $0 options

This script set ownership for all table, sequence and views for a given database

Credit: Based on http://stackoverflow.com/a/2686185/305019 by Alex Soto

OPTIONS:
   -h      Show this message
   -d      Database name
   -U      Postgres user to run this script as
   -o      Owner
EOF
}

DB_NAME=
NEW_OWNER=
PG_USER=

while getopts "h:d:o:U:" OPTION 
do
    case $OPTION in
        h)  
            usage
            exit 1
            ;;  
        d)  
            DB_NAME=$OPTARG
            ;;  
        o)  
            NEW_OWNER=$OPTARG
            ;; 
	U)
	    PG_USER=$OPTARG
	    ;; 
    esac
done

echo "User $PG_USER"
if [[ -z $DB_NAME ]] || [[ -z $NEW_OWNER ]]
then
     usage
     exit 1
fi

for tbl in `psql -U${PG_USER} -qAt -c "select tablename from pg_tables where schemaname = 'public';" ${DB_NAME}` \
           `psql -U${PG_USER} -qAt -c "select sequence_name from information_schema.sequences where sequence_schema = 'public';" ${DB_NAME}` \
           `psql -U${PG_USER} -qAt -c "select table_name from information_schema.views where table_schema = 'public';" ${DB_NAME}` ;
do  
    psql -U${PG_USER} -c "alter table \"$tbl\" owner to ${NEW_OWNER}" ${DB_NAME} ; 
done