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Last updated: 2024-07-17 18:17:23
    The following lists the limits on the numbers of databases, data tables, attribute columns, and partitions.
    Item
    Maximum Number
    Databases per account
    1,000
    Data tables per account
    10,000
    Tables per database
    4,096
    Columns per data table
    4,096
    Partitions per table
    10,000
    Partitions per root account
    1,000,000
    Fields per table
    4,096
    Custom functions per account
    100
    Catalogs that can be created
    20

    Database

    Name: It can contain up to 127 characters and must be unique in a data link.
    Description: It can contain up to 2,048 characters.
    Data address of an external table (COS address): It can contain up to 888 characters (COS path length limit).
    Parameter: It is in the Map<string:string> format and can contain up to 127 characters. All parameters can contain up to 3,000 characters in total.

    Data table/View

    Name: It can contain up to 127 characters and must be unique in a database.
    Description: It can contain up to 1,000 characters.
    Data address of an external table (COS address): It can contain up to 888 characters (COS path length limit).
    Parameter: It is in the Map<string:string> format and can contain up to 127 characters. All parameters can contain up to 512,000 characters in total.

    Attribute column

    Name: It can contain up to 127 characters and must be unique in a data table.
    Description: It can contain up to 256 characters.
    Field value: It can contain up to 131,072 characters. Longer values cannot be created.

    Partition

    Partition field name: It can contain up to 127 characters.
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