SELECT * FROM pg_catalog.pg_dist_rebalance_strategy ORDER BY name;
      name       | default_strategy |           shard_cost_function           |              node_capacity_function               |      shard_allowed_on_node_function      | default_threshold | minimum_threshold
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 by_disk_size    | f                | citus_shard_cost_by_disk_size           | citus_node_capacity_1                             | citus_shard_allowed_on_node_true         |               0.1 |              0.01
 by_shard_count  | f                | citus_shard_cost_1                      | citus_node_capacity_1                             | citus_shard_allowed_on_node_true         |                 0 |                 0
 custom_strategy | t                | upgrade_rebalance_strategy.shard_cost_2 | upgrade_rebalance_strategy.capacity_high_worker_1 | upgrade_rebalance_strategy.only_worker_2 |               0.5 |               0.2
(3 rows)