flusher: added temporary delegations and validator votes view tables

CHANGELOG_UNRELEASED.md

@@ -18,6 +18,7 @@
 
 ### Emitter & Flusher
 
+- (impv) [\#2186](https://github.com/bandprotocol/bandchain/pull/2186) Add temporary view tables.
 - (bugs) [\#2192](https://github.com/bandprotocol/bandchain/pull/2192) Add `commission_amount` field to Withdraw Commission Reward.
 - (bugs) [\#2179](https://github.com/bandprotocol/bandchain/pull/2179) Add parse bytes to convert nil slices to empty slices.
 - (impv) [\#2181](https://github.com/bandprotocol/bandchain/pull/2181) Change all foreign key that refers from tx_hash to id.

flusher/flusher/init.py

@@ -1,9 +1,11 @@
-import click
 import json
-from sqlalchemy import create_engine
 
-from .cli import cli
+import click
+
 from .db import metadata, tracking
+from .cli import cli
+
+from sqlalchemy import create_engine
 
 
 @cli.command()
@@ -20,4 +22,27 @@ def init(chain_id, topic, db):
     engine = create_engine("postgresql+psycopg2://" + db, echo=True)
     metadata.create_all(engine)
     engine.execute(tracking.insert(), {"chain_id": chain_id, "topic": topic, "kafka_offset": -1})
+    engine.execute('''CREATE VIEW delegations_view AS
+			SELECT CAST(shares AS DECIMAL) * CAST(tokens AS DECIMAL) / CAST(delegator_shares AS DECIMAL) as amount,
+			CAST(shares AS DECIMAL) /  CAST(delegator_shares AS DECIMAL) * 100 as share_percentage,
+			CAST(shares AS DECIMAL) * CAST(current_reward AS DECIMAL) /  CAST(delegator_shares AS DECIMAL) + (CAST(current_ratio AS DECIMAL) - CAST(last_ratio AS DECIMAL)) * CAST(shares AS DECIMAL) as reward,
+			delegations.operator_address,
+			moniker,
+			delegator_address
+			FROM delegations JOIN validators ON delegations.operator_address=validators.operator_address; ''')
+    engine.execute('''CREATE VIEW validator_last_250_votes AS
+			SELECT COUNT(*), consensus_address, voted
+			FROM validator_votes 
+			WHERE block_height > (SELECT MAX(height) from blocks) - 251
+			GROUP BY consensus_address, voted; ''')
+    engine.execute('''CREATE VIEW validator_last_1000_votes AS
+			SELECT COUNT(*), consensus_address, voted
+			FROM validator_votes 
+			WHERE block_height > (SELECT MAX(height) from blocks) - 1001
+			GROUP BY consensus_address, voted; ''')
+    engine.execute('''CREATE VIEW validator_last_10000_votes AS
+			SELECT COUNT(*), consensus_address, voted
+			FROM validator_votes 
+			WHERE block_height > (SELECT MAX(height) from blocks) - 10000
+			GROUP BY consensus_address, voted;''')