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    Hologres:Manage table groups

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    Hologres:Manage table groups

    Last Updated:Mar 10, 2026

    A table group is a logical grouping of tables that share the same shard count. By managing table groups, you can control how tables are distributed and grouped within a database, which directly affects data layout and query coordination. This topic describes how to view, create, and manage table groups and the tables they contain using HoloWeb.

    Prerequisites

    • You have connected to the HoloWeb developer page. For instructions, see Connect to HoloWeb.

    • You are a superuser. Only superusers can view and manage all table groups.

    Go to the Table Group Management page

    The following procedures all begin from the Table Group Management page. To navigate to it:

    1. In the top menu bar of the HoloWeb developer page, click Diagnostics and Optimization.

    2. In the left-side navigation pane, click Table Metadata Management > Table Group Management.

    View table groups

    1. On the Table Group Management tab, select an Instance and a Database to view the list of table groups.

    The table group list displays the following columns:

    Column Description
    Table Group Name The name of the table group.
    Default Table Group Or Not Indicates whether the table group is the default table group for the database.
    Table Count The number of tables in the table group.
    Shard Count The shard count configured for the table group.

    From the list, you can perform the following operations on each table group:

    • View details: Opens the Management for Tables in Table Group tab, where you can view all tables that belong to the table group. For more information, see View tables in a table group.

    • Set as Default Table Group: Sets a non-default table group as the default table group for the database.

    • Delete: Deletes the table group. You can delete a table group only if it contains no tables. Remove all tables from the table group before you attempt deletion.

    Create a table group

    1. On the Table Group Management tab, select an Instance and a Database.

    2. Click Create Table Group.

    3. In the dialog that appears, configure the following parameters:

      Parameter Description
      Table Group Name Enter a name for the table group.
      Default Table Group Or Not Specify whether to set this table group as the default table group.
      Shard Count Enter the shard count for the table group.

    4. Click OK to create the table group.

    View tables in a table group

    1. Click the Management for Tables in Table Group tab.

    2. Select an Instance, a Database, and a Table Group. Optionally, enter a Table Name to filter the results.

    3. Click Search to view the tables in the selected table group.

      The list includes all standard tables and parent partition tables in the selected table group. By default, child partition tables belong to the same table group as their parent partition tables.

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