Merge pull request #2151 from IntersectMBO/fix/fix-stake-key-sql-error

hotfix(v1.0.21): fix stake key sql error

govtool/backend/sql/get-stake-key-voting-power.sql

@@ -1,8 +1,11 @@
-SELECT COALESCE(SUM(utxo_view.value::numeric), 0) + COALESCE(SUM(reward_rest.amount), 0) AS total_value,
+SELECT COALESCE(SUM(utxo_view.value::numeric), 0) + COALESCE(reward_sum.total_reward, 0) AS total_value,
        encode(stake_address.hash_raw, 'hex')
 FROM stake_address
 JOIN utxo_view ON utxo_view.stake_address_id = stake_address.id
-LEFT JOIN reward_rest ON reward_rest.addr_id = stake_address.id
-WHERE reward_rest.earned_epoch IS NULL
+LEFT JOIN (
+    SELECT addr_id, SUM(reward_rest.amount) AS total_reward
+    FROM reward_rest
+    GROUP BY addr_id
+) AS reward_sum ON reward_sum.addr_id = stake_address.id
 WHERE stake_address.hash_raw = decode(?, 'hex')
-GROUP BY stake_address.hash_raw;
+GROUP BY stake_address.hash_raw, reward_sum.total_reward;