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Update 22-meta.md

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WANG MINGMING 2023-03-10 11:48:36 +08:00 committed by GitHub
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@ -179,6 +179,20 @@ Provides information about standard tables and subtables.
| 5 | tag_type | BINARY(64) | Tag type |
| 6 | tag_value | BINARY(16384) | Tag value |
## INS_COLUMNS
| # | **列名** | **数据类型** | **说明** |
| --- | :---------: | ------------- | ---------------------- |
| 1 | table_name | BINARY(192) | Table name |
| 2 | db_name | BINARY(64) | Database name |
| 3 | table_type | BINARY(21) | Table type |
| 4 | col_name | BINARY(64) | Column name |
| 5 | col_type | BINARY(32) | Column type |
| 6 | col_length | INT | Column length |
| 7 | col_precision | INT | Column precision |
| 8 | col_scale | INT | Column scale |
| 9 | col_nullable | INT | Column nullable |
## INS_USERS
Provides information about TDengine users.