ALTER RESOURCE LABEL

Description

Modifies resource labels.

Precautions

Only users with the POLADMIN or SYSADMIN permission, or the initial user can perform this operation.

Syntax

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ALTER RESOURCE LABEL label_name (ADD|REMOVE) 
  label_item_list[, ...];

• label_item_list

  1	resource_type(resource_path[, ...])

• resource_type

  TABLE | COLUMN | SCHEMA | VIEW | FUNCTION

Parameters

• label_name

  Specifies the resource label name.

  Value range: a string. It must comply with the naming convention.

• resource_type

  Specifies the type of database resources to be labeled.

• resource_path

  Specifies the path of database resources.

Examples

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-- Create basic table table_for_label.
gaussdb=# CREATE TABLE table_for_label(col1 int, col2 text);

-- Create resource label table_label.
gaussdb=# CREATE RESOURCE LABEL table_label ADD COLUMN(table_for_label.col1);

-- Attach resource label table_label to col2.
gaussdb=# ALTER RESOURCE LABEL table_label ADD COLUMN(table_for_label.col2)

-- Remove an item from table_label.
gaussdb=# ALTER RESOURCE LABEL table_label REMOVE COLUMN(table_for_label.col1);

-- Delete the resource label table_label.
gaussdb=# DROP RESOURCE LABEL table_label;

-- Delete the base table table_for_label.
gaussdb=# DROP TABLE table_for_label;

Helpful Links

CREATE RESOURCE LABEL and DROP RESOURCE LABEL