更新时间:2022-09-03 18:29:20
您可以使用CHECK GLOBAL INDEX语句检查主表和索引表的数据是否完全一致,并修订不一致的数据。
CHECK GLOBAL INDEX gsi_name [ON tbl_name] [extra_cmd]
参数 | 说明 |
gsi_name |
需要校验的全局二级索引名。 |
tbl_name |
全局二级索引所在的主表,非必选。若您输入具体主表名称,将会检查全局二级索引表和主表间的索引关系是否正确。 |
extra_cmd |
保留的额外指令,目前支持如下指令:
|
说明
mysql> CHECK GLOBAL INDEX `g_i_check`;
+-------------+------------+--------+-------------+-----------------------------+ | GSI_TABLE | ERROR_TYPE | STATUS | PRIMARY_KEY | DETAILS | +-------------+------------+--------+-------------+-----------------------------+ | `g_i_check` | SUMMARY | -- | -- | OK (7025/7025 rows checked) | +-------------+------------+--------+-------------+-----------------------------+ 1 row in set (1.40 sec)
+-------------+------------+--------+-------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | GSI_TABLE | ERROR_TYPE | STATUS | PRIMARY_KEY | DETAILS | +-------------+------------+--------+-------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | `g_i_check` | ORPHAN | FOUND | (100722) | {"GSI":{"id":100722,"c_timestamp_6":"2000-01-01 00:00:00.000000","c_timestamp_3":"2000-01-01 00:00:00.000","c_timestamp_1":"2000-01-01 00:00:00.0","c_binary":"OTkAAAAAAAAAAA==","c_int_32":271}} | | `g_i_check` | CONFLICT | FOUND | (108710) | {"Primary":{"id":108710,"c_timestamp_6":"2000-01-01 00:00:00.000000","c_timestamp_3":"2000-01-01 00:00:00.000","c_timestamp_1":"2000-01-01 00:00:00.0","c_year":"2000","c_int_32":255},"GSI":{"c_int_32_un":123456,"id":108710,"c_timestamp_6":"2000-01-01 00:00:00.000000","c_timestamp_3":"2000-01-01 00:00:00.000","c_timestamp_1":"2000-01-01 00:00:00.0","c_year":"2000","c_int_32":255}} | | `g_i_check` | MISSING | FOUND | (100090) | {"Primary":{"id":100090,"c_timestamp_6":"2000-01-01 00:00:00.000000","c_timestamp_3":"2000-01-01 00:00:00.000","c_timestamp_1":"2000-01-01 00:00:00.0","c_blob_tiny":"YeS4reWbvWE=","c_int_32":280}} | | `g_i_check` | SUMMARY | -- | -- | 3 error found (7025/7025 rows checked) | +-------------+------------+--------+-------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 4 rows in set (1.92 sec)
mysql> CHECK GLOBAL INDEX g_i_check CORRECTION_BASED_ON_PRIMARY;
+-------------+------------+--------+-------------+------------------------------------------------------------------------+ | GSI_TABLE | ERROR_TYPE | STATUS | PRIMARY_KEY | DETAILS | +-------------+------------+--------+-------------+------------------------------------------------------------------------+ | `g_i_check` | SUMMARY | -- | -- | Done. Use SQL: { CHECK GLOBAL INDEX `g_i_check` SHOW; } to get result. | +-------------+------------+--------+-------------+------------------------------------------------------------------------+ 1 row in set (1.40 sec)
mysql> CHECK GLOBAL INDEX `g_i_check` SHOW;
+-------------+------------+----------+-------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | GSI_TABLE | ERROR_TYPE | STATUS | PRIMARY_KEY | DETAILS | +-------------+------------+----------+-------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | `g_i_check` | MISSING | REPAIRED | (100090) | {"Primary":{"id":100090,"c_timestamp_6":"2000-01-01 00:00:00.000000","c_timestamp_3":"2000-01-01 00:00:00.000","c_timestamp_1":"2000-01-01 00:00:00.0","c_blob_tiny":"YeS4reWbvWE=","c_int_32":280}} | | `g_i_check` | CONFLICT | REPAIRED | (108710) | {"Primary":{"id":108710,"c_timestamp_6":"2000-01-01 00:00:00.000000","c_timestamp_3":"2000-01-01 00:00:00.000","c_timestamp_1":"2000-01-01 00:00:00.0","c_year":"2000","c_int_32":255},"GSI":{"c_int_32_un":123456,"id":108710,"c_timestamp_6":"2000-01-01 00:00:00.000000","c_timestamp_3":"2000-01-01 00:00:00.000","c_timestamp_1":"2000-01-01 00:00:00.0","c_year":"2000","c_int_32":255}} | | `g_i_check` | ORPHAN | REPAIRED | (100722) | {"GSI":{"id":100722,"c_timestamp_6":"2000-01-01 00:00:00.000000","c_timestamp_3":"2000-01-01 00:00:00.000","c_timestamp_1":"2000-01-01 00:00:00.0","c_binary":"OTkAAAAAAAAAAA==","c_int_32":271}} | | `g_i_check` | SUMMARY | -- | -- | 3 error found (7025/7026 rows checked.) Finish time: 2020-01-13 14:41:51.0 | +-------------+------------+----------+-------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 4 rows in set (0.02 sec)
表 1. 列名说明
列名 | 说明 |
GSI_TABLE | 全局二级索引名。 |
ERROR_TYPE | 错误类型,取值范围如下:
|
STATUS | 状态,取值范围如下:
|
PRIMARY_KEY | 主键。 |
DETAILS | 错误的详细信息。 |