SHOW PLACEMENT LABELS
SHOW PLACEMENT LABELS 汇总可用于放置规则 (Placement Rules) 的标签 (label) 和值。
语法图
- ShowStmt
ShowStmt ::=
"PLACEMENT" "LABELS"
示例
SHOW PLACEMENT LABELS;
+--------+----------------+
| Key | Values |
+--------+----------------+
| region | ["us-east-1"] |
| zone | ["us-east-1a"] |
+--------+----------------+
2 rows in set (0.00 sec)
MySQL 兼容性
该语句是 TiDB 对 MySQL 语法的扩展。