我的表包含列的索引total_balance：
\d balances_snapshots
Table "public.balances_snapshots"
Column | Type | Collation | Nullable | Default
---------------+-----------------------------+-----------+----------+------------------------------------------------
user_id | integer | | |
asset_id | text | | |
timestamp | timestamp without time zone | | | now()
total_balance | numeric | | not null |
id | integer | | not null | nextval('balances_snapshots_id_seq'::regclass)
Indexes:
"balances_snapshots_pkey" PRIMARY KEY, btree (id)
"balances_snapshots_asset_id_idx" btree (asset_id)
"balances_snapshots_timestamp_idx" btree ("timestamp")
"balances_snapshots_user_id_idx" btree (user_id)
"balances_total_balance_idx" btree (total_balance)
Foreign-key constraints:
"balances_snapshots_asset_id_fkey" FOREIGN KEY (asset_id) …