more index cleanups to optimise space

src/vctp.default

@@ -1,9 +1,13 @@
 CPE_OPTS='-settings /etc/dtms/vctp.yml'
-MONTHLY_AGG_GO=0
-DAILY_AGG_GO=0
-# Optional explicit encryption key source (recommended for stable credential decryption across host changes):
-# VCTP_ENCRYPTION_KEY=''
-# PostgreSQL is experimental and disabled by default:
-# VCTP_ENABLE_EXPERIMENTAL_POSTGRES=0
-# Deprecated API endpoints are disabled by default:
-# VCTP_ENABLE_LEGACY_API=0
+
+# Aggregation engine selection (default: Go paths enabled).
+# DAILY_AGG_GO=1:
+#   Use the Go fan-out/reduce daily aggregation path.
+# MONTHLY_AGG_GO=1:
+#   Use the Go monthly aggregation path for both monthly modes
+#   (hourly or daily source tables, controlled by settings.monthly_aggregation_granularity).
+# Set either option to 0 to prefer the SQL implementation for that layer.
+# If a Go aggregation run fails, vCTP automatically falls back to SQL for that run.
+DAILY_AGG_GO=1
+MONTHLY_AGG_GO=1
+# Additional runtime behavior is configured in the YAML file (`/etc/dtms/vctp.yml` by default).