69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
import sys
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import time
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import pymysql
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conn = pymysql.connect(
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host='192.168.0.141',
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port=3306,
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user='jae',
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password='1234',
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database='kis_quant_db',
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cursorclass=pymysql.cursors.DictCursor,
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autocommit=True
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)
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try:
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with conn.cursor() as cur:
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cur.execute("SHOW TABLES")
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tables = [list(r.values())[0] for r in cur.fetchall()]
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target_prefixes = (
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'ws_ticks', 'ws_orderbook', 'ws_candles',
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'ls_ws_ticks', 'ls_ws_orderbook', 'ls_ws_candles',
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'ws_price_validation'
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)
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for table in tables:
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if not table.startswith(target_prefixes):
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continue
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with conn.cursor() as cur:
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cur.execute(f"SHOW COLUMNS FROM {table}")
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cols = [r["Field"] for r in cur.fetchall()]
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time_col = None
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for candidate in ('tick_time', 'ob_time', 'candle_time', 'timestamp', 'recv_ts', 'datetime'):
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if candidate in cols:
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time_col = candidate
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break
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if time_col:
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cutoff = '20260808'
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with conn.cursor() as cur:
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count_q = f"SELECT COUNT(*) as cnt FROM {table} WHERE {time_col} < %s"
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cur.execute(count_q, (cutoff,))
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count = cur.fetchone()['cnt']
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if count > 0:
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print(f"Deleting {count} rows from {table} (using column {time_col})")
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deleted = 0
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while True:
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with conn.cursor() as cur:
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del_q = f"DELETE FROM {table} WHERE {time_col} < %s LIMIT 100000"
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cur.execute(del_q, (cutoff,))
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rows_affected = cur.rowcount
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if rows_affected <= 0:
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break
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deleted += rows_affected
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print(f" ... deleted {deleted}/{count} rows in {table}")
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time.sleep(0.01)
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print(f"Finished deleting from {table}.")
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else:
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print(f"No rows to delete in {table} before {cutoff}")
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else:
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print(f"Warning: No time column found for {table}, columns: {cols}")
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finally:
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conn.close()
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