[indexer] Add inactive share tracking (aptos-labs#8363)

* Add inactive share tracking

* add view for easy access

* add a new query for wallet

* remove backfilling code

crates/indexer/migrations/2023-05-22-234344_delegated_staking_improvements/down.sql

@@ -0,0 +1,24 @@
+-- This file should undo anything in `up.sql`
+ALTER TABLE current_delegated_staking_pool_balances DROP COLUMN IF EXISTS operator_commission_percentage,
+  DROP COLUMN IF EXISTS inactive_table_handle,
+  DROP COLUMN IF EXISTS active_table_handle;
+DROP INDEX IF EXISTS cdspb_inactive_index;
+ALTER TABLE delegated_staking_pool_balances DROP COLUMN IF EXISTS operator_commission_percentage,
+  DROP COLUMN IF EXISTS inactive_table_handle,
+  DROP COLUMN IF EXISTS active_table_handle;
+ALTER TABLE current_delegator_balances DROP COLUMN IF EXISTS parent_table_handle;
+ALTER TABLE current_delegator_balances DROP CONSTRAINT current_delegator_balances_pkey;
+ALTER TABLE current_delegator_balances
+ADD CONSTRAINT current_delegator_balances_pkey PRIMARY KEY (
+    delegator_address,
+    pool_address,
+    pool_type
+  );
+CREATE OR REPLACE VIEW num_active_delegator_per_pool AS
+SELECT pool_address,
+  COUNT(DISTINCT delegator_address) AS num_active_delegator
+FROM current_delegator_balances
+WHERE shares > 0
+GROUP BY 1;
+DROP VIEW IF EXISTS delegator_distinct_pool;
+DROP VIEW IF EXISTS address_events_summary;

crates/indexer/migrations/2023-05-22-234344_delegated_staking_improvements/up.sql

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+-- Your SQL goes here
+-- adding new fields to staking pool balances for display and handling inactive pools
+ALTER TABLE current_delegated_staking_pool_balances
+ADD COLUMN IF NOT EXISTS operator_commission_percentage NUMERIC NOT NULL,
+  ADD COLUMN IF NOT EXISTS inactive_table_handle VARCHAR(66) NOT NULL,
+  ADD COLUMN IF NOT EXISTS active_table_handle VARCHAR(66) NOT NULL;
+CREATE INDEX IF NOT EXISTS cdspb_inactive_index ON current_delegated_staking_pool_balances (inactive_table_handle);
+-- adding new fields to staking pool balances for display and handling inactive pools
+ALTER TABLE delegated_staking_pool_balances
+ADD COLUMN IF NOT EXISTS operator_commission_percentage NUMERIC NOT NULL,
+  ADD COLUMN IF NOT EXISTS inactive_table_handle VARCHAR(66) NOT NULL,
+  ADD COLUMN IF NOT EXISTS active_table_handle VARCHAR(66) NOT NULL;
+-- add new field to composite primary key because technically a user could have inactive pools
+ALTER TABLE current_delegator_balances
+ADD COLUMN IF NOT EXISTS parent_table_handle VARCHAR(66) NOT NULL;
+ALTER TABLE current_delegator_balances DROP CONSTRAINT current_delegator_balances_pkey;
+ALTER TABLE current_delegator_balances
+ADD CONSTRAINT current_delegator_balances_pkey PRIMARY KEY (
+    delegator_address,
+    pool_address,
+    pool_type,
+    table_handle
+  );
+-- need this for delegation staking
+CREATE OR REPLACE VIEW num_active_delegator_per_pool AS
+SELECT pool_address,
+  COUNT(DISTINCT delegator_address) AS num_active_delegator
+FROM current_delegator_balances
+WHERE shares > 0
+  AND pool_type = 'active_shares'
+GROUP BY 1;
+-- need this for delegation staking
+CREATE OR REPLACE VIEW delegator_distinct_pool AS
+SELECT delegator_address,
+  pool_address
+FROM current_delegator_balances
+WHERE shares > 0
+GROUP BY 1,
+  2;
+-- new query for wallet
+CREATE OR REPLACE VIEW address_events_summary AS
+SELECT account_address,
+  min(transaction_block_height) AS min_block_height,
+  count(DISTINCT transaction_version) AS num_distinct_versions
+FROM events
+GROUP BY 1