added composite index for metagraph history table

alembic/versions/187893f603bd_add_composite_index_on_metagraph_history.py

@@ -0,0 +1,35 @@
+"""add composite index on metagraph_history for lateral join optimization
+
+Revision ID: 187893f603bd
+Revises: 8bf23e9921f1
+Create Date: 2026-02-23 12:00:00.000000
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "187893f603bd"
+down_revision: Union[str, None] = "8bf23e9921f1"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # CREATE INDEX CONCURRENTLY cannot run inside a transaction
+    op.execute("COMMIT")
+    op.execute("""
+        CREATE INDEX CONCURRENTLY IF NOT EXISTS ix_metagraph_history_uid_updated_at
+        ON metagraph_history (neuron_uid, updated_at DESC)
+        INCLUDE (ip_address)
+        """)
+
+
+def downgrade() -> None:
+    # DROP INDEX CONCURRENTLY cannot run inside a transaction
+    op.execute("COMMIT")
+    op.execute("""
+        DROP INDEX CONCURRENTLY IF EXISTS ix_metagraph_history_uid_updated_at
+        """)

alembic/versions/8bf23e9921f1_add_indexes_for_scores_latest.py

@@ -18,6 +18,9 @@
 
 
 def upgrade() -> None:
+    # CREATE INDEX CONCURRENTLY cannot run inside a transaction
+    op.execute("COMMIT")
+
     query = """CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_mp_vr_id
   ON miner_predictions (validator_requests_id);"""
 
@@ -30,6 +33,9 @@ def upgrade() -> None:
 
 
 def downgrade() -> None:
+    # DROP INDEX CONCURRENTLY cannot run inside a transaction
+    op.execute("COMMIT")
+
     query = """DROP INDEX CONCURRENTLY IF EXISTS idx_mp_vr_id;"""
     op.execute(query)