unzip pg_repack-1.5.2.zip
cd pg_repack-1.5.2
make && make install

-- Check but not execute
pg_repack -k --dry-run --no-order -h 10.*.*.* -p 5432 -U user -d database -t schema1.table1
-- Check and execute
pg_repack -k --no-order -h 10.*.*.* -p 5432 -U user -d database -t schema1.table1

-- Check but not execute
pg_repack -k --dry-run --no-order -h 10.*.*.* -p 5432 -U user -d database -c schema
-- Check and execute
pg_repack -k --no-order -h 10.*.*.* -p 5432 -U user -d database -c schema

-- Check but not execute
pg_repack -k --dry-run --no-order -h 10.*.*.* -p 5432 -U user -d database
-- Check and execute
pg_repack -k --no-order -h 10.*.*.* -p 5432 -U user -d database

-- Check but not execute
pg_repack -k --dry-run --no-order -h 10.*.*.* -p 5432 -U user -a
-- Check and execute
pg_repack -k --no-order -h 10.*.*.* -p 5432 -U user -a

-- View the top library size, sql as follows:
select datname,pg_size_pretty(pg_database_size(datname))  from pg_database order by pg_database_size(datname) desc;
-- View the top table size in the database, sql as follows:
SELECT relname AS table_name, pg_size_pretty(pg_total_relation_size(relid)) AS total_size FROM pg_catalog.pg_statio_user_tables ORDER BY pg_total_relation_size(relid) DESC;
-- View the size of a specific table, sql as follows:
select pg_size_pretty(pg_total_relation_size('pgtest'));