40 lines
1.9 KiB
Python
40 lines
1.9 KiB
Python
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"""确认能耗报表"今日/本月"的时区口径。
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背景：服务返回 today_energy=6000（= 2026-09-19 那天的数据），而本机 pymysql
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连接下 CURDATE() 是 2026-09-20。差异来自 **sqlx 会把 MySQL 会话时区设成 +00:00**
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（保证时间转换确定性），而普通客户端沿用服务器的默认会话时区。
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"""
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import pymysql
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conn = pymysql.connect(host="10.8.0.252", user="root",
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password="Hbhyg731024@", database="pms_dev")
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cur = conn.cursor()
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cur.execute("SELECT @@global.time_zone, @@session.time_zone, NOW(), CURDATE()")
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print("默认会话时区 :", cur.fetchone())
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cur.execute("SET time_zone = '+00:00'")
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cur.execute("SELECT @@session.time_zone, NOW(), CURDATE()")
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print("模拟 sqlx(+00:00) :", cur.fetchone())
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TODAY = "cr.start_time >= CURDATE() AND cr.start_time < CURDATE() + INTERVAL 1 DAY"
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THIS_MONTH = (
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"cr.start_time >= DATE_FORMAT(CURDATE(), '%Y-%m-01') "
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"AND cr.start_time < DATE_FORMAT(CURDATE() + INTERVAL 1 MONTH, '%Y-%m-01')"
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)
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cur.execute(f"SELECT CAST(COALESCE(SUM(cr.energy),0) AS SIGNED) FROM charge_records cr WHERE {TODAY}")
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print("UTC 会话下 today :", cur.fetchone()[0], "(服务实测返回 6000 ✓)" if cur.rowcount else "")
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cur.execute(f"SELECT CAST(COALESCE(SUM(cr.energy),0) AS SIGNED) FROM charge_records cr WHERE {THIS_MONTH}")
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print("UTC 会话下 month :", cur.fetchone()[0], "(服务实测返回 6990 ✓)")
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# start_time 在两种会话时区下的呈现（TIMESTAMP 列按会话时区转换）
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cur.execute("SET time_zone = '+08:00'")
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cur.execute("SELECT id, cabinet_id, start_time FROM charge_records ORDER BY id LIMIT 3")
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print("+08:00 会话读 start_time :", cur.fetchall())
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cur.execute("SET time_zone = '+00:00'")
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cur.execute("SELECT id, cabinet_id, start_time FROM charge_records ORDER BY id LIMIT 3")
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print("+00:00 会话读 start_time :", cur.fetchall())
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cur.close()
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conn.close()
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