feat(migrations): part 2 of dashboard exporter backfill process

Author: invis-bitfly

backend/pkg/commons/db/migrations/clickhouse/20250520135931_finalize_electra_fork_epoch_backfill.sql

@@ -0,0 +1,16 @@
+-- +goose Up
+-- +goose StatementBegin
+-- +goose ENVSUB ON
+ALTER TABLE _final_validator_dashboard_data_epoch
+    UPDATE 
+        withdrawals_count = withdrawals_count + dictGet(_dict_backfill_electra_fork_epoch_events, 'withdrawals_count', (epoch_timestamp, validator_index)),
+        withdrawals_amount = withdrawals_amount + dictGet(_dict_backfill_electra_fork_epoch_events, 'withdrawals_amount', (epoch_timestamp, validator_index))
+    where epoch_timestamp = ${ELECTRA_FORK_EPOCH_TIMESTAMP?please set to the epoch timestamp AFTER the dashboard exporter has prepared the dictionary. set to random date if backfill is not required (i.e the overall export was started after this fix was added)} settings alter_sync=2, mutations_sync=2, database_replicated_enforce_synchronous_settings=1;
+-- +goose ENVSUB OFF
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+-- purposefully fail
+select * from "downgrade not supported"."manual re-export recommended"
+-- +goose StatementEnd

backend/pkg/commons/db/migrations/clickhouse/20250521145305_finalize_electra_fork_epoch_backfill_part_2.sql

@@ -0,0 +1,10 @@
+-- +goose Up
+-- +goose StatementBegin
+ALTER TABLE _final_validator_dashboard_data_epoch
+    MATERIALIZE COLUMN roi_dividend settings alter_sync=0;
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+
+-- +goose StatementEnd