Pool Live Stake with cardano-db-sync 11.0.0

cardano-db-sync_pool_live_stake.sql

WITH stake AS
  (SELECT d1.addr_id
   FROM delegation d1, pool_hash
   WHERE pool_hash.id=d1.pool_hash_id
     AND pool_hash.hash_raw='\xabacadaba9f12a8b5382fc370e4e7e69421fb59831bb4ecca3a11d9b'
     AND NOT EXISTS
       (SELECT TRUE
        FROM delegation d2
        WHERE d2.addr_id=d1.addr_id 
          AND d2.tx_id>d1.tx_id)
     AND NOT EXISTS
       (SELECT TRUE
        FROM stake_deregistration
        WHERE stake_deregistration.addr_id=d1.addr_id
          AND stake_deregistration.tx_id>d1.tx_id))
SELECT sum(total)
FROM
  (SELECT sum(value) total
   FROM utxo_view
     INNER JOIN stake ON utxo_view.stake_address_id=stake.addr_id
   UNION SELECT sum(amount)
   FROM reward
     INNER JOIN stake ON reward.addr_id=stake.addr_id
     WHERE reward.spendable_epoch <= (SELECT MAX(epoch_no) FROM block)
   UNION SELECT -sum(amount)
   FROM withdrawal
     INNER JOIN stake ON withdrawal.addr_id=stake.addr_id
  ) AS t;

my mistake...It should be earned_epoch < current_epoch. We know that if I have reward at epoch T, it will show up on my wallet at epoch T + 2. So the question is that reward at epoch T will be count in total delegate from epoch T+1 or T+2?
If result is T+2, we are wasting millions ADA to advance PoS protocol for epoch T+1 (15.38m reward distributed in Epoch 290). My formula is correct with epoch_stake.amount in db-sync.

A pool live stake is generally considered as the sum of all wallets balances as currently seen by their users. If you use earned_epoch < current_epoch at epoch n, again, before the end of the epoch you will get new rows included for the rewards earned epoch n-1 and being calculated progressively during the epoch but not yet spendable (they will be spendable epoch n+1).

This would be a different definition of a pool live stake and it would include before the end of epochs some rewards that no one has in their wallet yet. You could use earned_epoch < current_epoch - 1, but then it's exactly the same as spendable_epoch <= current_epoch as used in the current query.