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Add an query as example to retrieve delegators and their stake #609

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Add an query as example to retrieve delegators and their stake #609

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24 changes: 24 additions & 0 deletions doc/interesting-queries.md
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Expand Up @@ -285,6 +285,30 @@ select stake_address.view as stake_address, epoch_stake.epoch_no, epoch_stake.am
...
```

### Get delegators, their latest address and live-stake of a pool

```sql
with
delegates as (
select stake_address, pool_address, stake_address_id from (
select row_number() over(PARTITION BY d.addr_id order by d.addr_id, d.id desc) row_number, sa."view" stake_address, ph."view" pool_address, d.addr_id stake_address_id
from delegation d
join pool_hash ph on ph.id = d.pool_hash_id
join stake_address sa on sa.id = d.addr_id
join delegation alldelegations on alldelegations.addr_id=d.addr_id
where
ph.view='pool180fejev4xgwe2y53ky0pxvgxr3wcvkweu6feq5mdljfzcsmtg6u'
) inner_query
where row_number=1 and pool_address='pool180fejev4xgwe2y53ky0pxvgxr3wcvkweu6feq5mdljfzcsmtg6u'
),
delegator_addresses as (
select row_number() over(PARTITION BY txo.stake_address_id order by txo.stake_address_id, txo.tx_id desc) row_number, encode(tx.hash, 'hex') tx_hash_view, stake_address, txo.address , pool_address, txo.stake_address_id, txo.value from delegates
join tx_out txo on txo.stake_address_id = delegates.stake_address_id
join tx on tx.id =txo.tx_id
)
select *, (select sum(value) from utxo_view uv where uv.stake_address_id = delegator_addresses.stake_address_id) from delegator_addresses where row_number = 1
```

### Get the total orphaned rewards.
Orphaned rewards for epoch `N` are rewards that acrue to a stake address that was registered in
before the end of epoch `N - 2` but for which the stake address has been de-registered before the
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