77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
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"""只读比对：pms_dev 与 pms 的目标列定义 + organizations.parent_id 索引/外键
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用法： python .tmp-schema-align/compare.py
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只发 SELECT，不做任何写入。
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"""
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import pymysql
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COLS = [
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("charge_records", "energy"),
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("charge_records", "start_time"),
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("charge_records", "end_time"),
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("energy_stats", "total_energy"),
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("download_tasks", "completed_at"),
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("organizations", "parent_id"),
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]
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COL_SQL = """
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SELECT COLUMN_TYPE, IS_NULLABLE, IFNULL(CAST(COLUMN_DEFAULT AS CHAR),'<NULL>'),
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IFNULL(CAST(COLUMN_COMMENT AS CHAR),'')
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA=%s AND TABLE_NAME=%s AND COLUMN_NAME=%s
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"""
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IDX_SQL = """
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SELECT INDEX_NAME, SEQ_IN_INDEX, COLUMN_NAME, NON_UNIQUE
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FROM information_schema.STATISTICS
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WHERE TABLE_SCHEMA=%s AND TABLE_NAME='organizations'
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ORDER BY INDEX_NAME, SEQ_IN_INDEX
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"""
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FK_SQL = """
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SELECT CONSTRAINT_NAME, COLUMN_NAME, REFERENCED_TABLE_NAME, REFERENCED_COLUMN_NAME
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FROM information_schema.KEY_COLUMN_USAGE
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WHERE TABLE_SCHEMA=%s AND TABLE_NAME='organizations' AND REFERENCED_TABLE_NAME IS NOT NULL
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"""
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def snapshot(db):
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c = pymysql.connect(host="10.8.0.252", user="root", password="Hbhyg731024@", database=db)
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cur = c.cursor()
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cols = {}
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for t, col in COLS:
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cur.execute(COL_SQL, (db, t, col))
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cols[f"{t}.{col}"] = cur.fetchone() or ("<MISSING>",) * 4
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cur.execute(IDX_SQL, (db,))
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idx = cur.fetchall()
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cur.execute(FK_SQL, (db,))
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fk = cur.fetchall()
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c.close()
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return cols, idx, fk
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dev_cols, dev_idx, dev_fk = snapshot("pms_dev")
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prd_cols, prd_idx, prd_fk = snapshot("pms")
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print("=" * 100)
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print("%-32s | %-44s | %-44s | %s" % ("列", "pms_dev(测试)", "pms(生产)", "一致"))
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print("=" * 100)
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all_same = True
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for key in [f"{t}.{c}" for t, c in COLS]:
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d, p = dev_cols[key], prd_cols[key]
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same = d == p
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all_same &= same
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fmt = lambda r: "%s null=%s def=%s cmt=%s" % r
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print("%-32s | %-44s | %-44s | %s" % (key, fmt(d), fmt(p), "OK" if same else "DIFF"))
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print("-" * 100)
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print("列定义完全一致:", all_same)
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print()
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print("organizations 索引 pms_dev :", dev_idx)
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print("organizations 索引 pms :", prd_idx)
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print("parent_id 处于索引最左列 :", any(r[1] == 1 and r[2] == "parent_id" for r in dev_idx),
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"/", any(r[1] == 1 and r[2] == "parent_id" for r in prd_idx))
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print()
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print("organizations 自引用外键 pms_dev :", dev_fk)
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print("organizations 自引用外键 pms :", prd_fk)
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print("外键均存在:", bool(dev_fk) and bool(prd_fk))
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