I am trying to change the owner of all tables under the same schema in one command line. i.e: alter table schema_name.* owner to newowner
. Is there a way to accomplish that?
Reassigned Owned
There is a specific privilege command that does just this, RESASSIGN OWNED
. This reassigns all objects, not just ones in a specific schema.
Schema-specific
You can generate the ALTER TABLE
commands with the following,
SELECT format(
'ALTER TABLE %I.%I.%I OWNER TO %I;',
table_catalog,
table_schema,
table_name,
current_user -- or another just put it in quotes
)
FROM information_schema.tables
WHERE table_schema = 'mySchema';
In psql, you can run them by following it immediately with \gexec
I don't know of any way to accomplish this purely through psql, but using bash, you can list the tables in database $DB with:
psql -tc "select tablename from pg_tables where schemaname = '${SCHEMA}';" ${DB}
And the ownership can be transferred to $OWNER with:
psql -c "alter table ${SCHEMA}.${table} owner to ${OWNER}" ${DB}
Stringing this together gives you:
$ for table in `psql -tc "select tablename from pg_tables where schemaname = '${SCHEMA}';" ${DB}` ; do psql -c "alter table ${SCHEMA}.${table} owner to ${OWNER}" ${DB} ; done
$DB, $SCHEMA and $OWNER represent the database, schema (usually 'public') and the new owner's name respectively.
If you can query the tablenames in your schema, you can generate the queries to ALTER table ownership.
For example:
select 'ALTER TABLE ' || t.tablename || ' OWNER TO new_owner;'
from pg_tables t
where t.tableowner != 'rdsadmin';
will return the query to change ownership of all tables:
ALTER TABLE schema_version OWNER TO ali;
ALTER TABLE users OWNER TO ali;
ALTER TABLE company OWNER TO ali;
ALTER TABLE books OWNER TO ali;
...
then you can just run these :)
This script will do the trick.
sh change_owner.sh -n new_owner -S schema_name
sh change_owner.sh -n user1 -S public
Summary:
Tables/Sequences/Views : 16
Functions : 43
Aggregates : 1
Type : 2
found here https://github.com/trrao/PostgreSQL_Scripts
Similar to above using bash but I had to output in a text file and then input into psql:
$ psql -qAt -d mydatabase -c "SELECT 'ALTER TABLE '||schemaname||'.'||tablename||' \
OWNER TO new_owner;' \
FROM pg_tables \
WHERE schemaname = 'myschema'" > data.txt
$ psql < data.txt -d mydatabase
Based on this, but database added: http://penningpence.blogspot.ca/2014/09/changing-owner-of-multiple-database.html
This is a function I use for changing table, view and function ownership in a schema. It is fast, clean and a good example of how to use cursors as well. Also, no command line required.
The following will change permissions through a plpgsql function:
CREATE OR REPLACE FUNCTION YOURSCHEMA.do_changeowner(
newowner text,
pschem text)
RETURNS void AS
$BODY$
declare
tblnames CURSOR FOR
SELECT tablename FROM pg_tables
WHERE schemaname = pschem;
viewnames CURSOR FOR
SELECT viewname FROM pg_views
WHERE schemaname = pschem;
funcnames CURSOR FOR
SELECT p.proname AS name, pg_catalog.pg_get_function_identity_arguments(p.oid) as params
FROM pg_proc p
JOIN pg_namespace n ON n.oid = p.pronamespace
WHERE n.nspname = pschem;
begin
FOR stmt IN tblnames LOOP
EXECUTE 'alter TABLE ' || pschem || '.' || stmt.tablename || ' owner to ' || newowner || ';';
END LOOP;
FOR stmt IN viewnames LOOP
EXECUTE 'alter VIEW ' || pschem || '.' || stmt.viewname || ' owner to ' || newowner || ';';
END LOOP;
FOR stmt IN funcnames LOOP
EXECUTE 'alter FUNCTION ' || pschem || '.' || stmt.name || '(' || stmt.params || ') owner to ' || newowner || ';';
END LOOP;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;