EXPLAIN ANALYZE

    ExplainSym:

    ExplainStmt:

    ExplainableStmt:

    1. Query OK, 0 rows affected (0.12 sec)
    1. Query OK, 3 rows affected (0.02 sec)
    2. Records: 3  Duplicates: 0  Warnings: 0
    1. | id          | count | task | operator info      | execution info            |
    2. +-------------+-------+------+--------------------+---------------------------+
    3. | Point_Get_1 | 1.00  | root | table:t1, handle:1 | time:0ns, loops:0, rows:0 |
    4. +-------------+-------+------+--------------------+---------------------------+
    5. 1 row in set (0.01 sec)
    2. | id                | count    | task | operator info                                               | execution info                   |
    3. | TableReader_5     | 10000.00 | root | data:TableScan_4                                            | time:931.759µs, loops:2, rows:3  |
    4. | └─TableScan_4     | 10000.00 | cop  | table:t1, range:[-inf,+inf], keep order:false, stats:pseudo | time:0s, loops:0, rows:3         |
    5. +-------------------+----------+------+-------------------------------------------------------------+----------------------------------+

    该语句是 TiDB 对 MySQL 语法的扩展。