This topic describes the limits in Lindorm.
| Item | Limit |
|---|---|
| Database name | A database name must be 2 to 64 characters in length and can contain uppercase letters, lowercase letters, digits, and underscores (_). |
| Number of databases | Up to 16 databases including the default database can be created in a Lindorm instance. |
| Table name | A table name can be up to 128 characters in length and can contain uppercase letters, lowercase letters, digits, and underscores (_). |
| Number of tables | Up to 10,000 tables can be created in a Lindorm database. |
| Name of the tag column | The name of the tag column can contain only visible characters and can be up to 200 characters in length. |
| Value of the tag column | The value of the tag column can contain only visible characters and can be up to 20,480 characters in length. |
| Name of the field column | The name of the field column can contain only visible characters and can be up to 200 characters in length. |
| Value of the field column | The value of the field column can contain only visible characters and can be up to 20,480 characters in length. |
| Name of the timestamp column | The name of the timestamp column can contain only visible characters and can be up to 200 characters in length. A table can have only one timestamp column, which is used as the time index by default. |
| Value of the timestamp column | The unit of the value of the timestamp column is millisecond. |
| Number of columns | Up to 1,024 columns including the tag, field, and timestamp columns can be created in a table. |