query = """UPDATE table SET last_tracked = %s, being_tracked = %s WHERE(
SELECT 'X' FROM temp_table
WHERE table.selected_id = temp_table.selected_id);"""
cur.execute(query, [datetime.utcnow().isoformat(' ').split('.')[0] + ' z', True])
以上蟒蛇/ psycopg2代碼提供了以下錯誤:無法從未知找到轉換功能的布爾錯誤
ERROR: failed to find conversion function from unknown to boolean
STATEMENT: UPDATE table
SET last_tracked = '2015-07-02 20:32:00 z', being_tracked = true
WHERE(
SELECT 'X' FROM temp_table
WHERE table.selected_id = temp_table.selected_id);
下面的代碼工作完全正常:
query = """UPDATE table SET being_tracked = %s
WHERE NOT EXISTS(
SELECT 'X' FROM temp_table
WHERE table.selected_id = temp_table.selected_id);"""
cur.execute(query, [False])
我m試圖只更新表中已經存在的行。我在這裏做錯了什麼?
哪個是屬性last_tracked的類型? – Renzo
帶時區的時間戳 – jeebface