refactor: enhance Optuna backtesting framework, optimize orderbook filtering, and update database management utilities.

scratch/check_orderbook_schema.py

@@ -0,0 +1,38 @@
+import sys
+import os
+import datetime
+
+sys.path.insert(0, "/home/hoon/kis_bot")
+from database import TradeDB
+
+def main():
+    db = TradeDB()
+    try:
+        tables = ["ws_orderbook", "kis_ws_orderbook", "ls_ws_orderbook"]
+        
+        for table in tables:
+            print(f"\n--- {table} ---")
+            try:
+                # 1. Show columns
+                cols = db.conn.execute(f"SHOW COLUMNS FROM {table}").fetchall()
+                print("Columns:", [dict(c)["Field"] for c in cols])
+                
+                # 2. Get 1 sample row to see data types
+                sample = db.conn.execute(f"SELECT * FROM {table} ORDER BY id DESC LIMIT 1").fetchone()
+                if sample:
+                    print("Sample row:")
+                    for k, v in dict(sample).items():
+                        print(f"  {k}: {v} (type: {type(v)})")
+                else:
+                    print("Table is completely empty.")
+                    
+                # 3. Total count in table
+                total = db.conn.execute(f"SELECT COUNT(*) as c FROM {table}").fetchone()
+                print("Total rows:", dict(total)["c"])
+            except Exception as e:
+                print(f"Error checking {table}: {e}")
+    finally:
+        db.close()
+
+if __name__ == "__main__":
+    main()