DROP DATA SOURCE
Function
DROP DATA SOURCE deletes a data source.
Precautions
Only an owner, system administrator, or initial user can delete a data source.
Syntax
DROP DATA SOURCE [IF EXISTS] src_name [CASCADE | RESTRICT];
Parameter Description
src_name
Specifies the name of the data source to be deleted.
Value range: a string. It must comply with the naming convention.
IF EXISTS
Reports a notice instead of an error if the specified data source does not exist.
CASCADE | RESTRICT
CASCADE: automatically deletes the objects that depend on the data source.
RESTRICT: refuses to delete the data source if any objects depend on it. This is the default action.
Currently, no objects depend on data sources. Therefore, CASCADE is equivalent to RESTRICT, and they are reserved to ensure backward compatibility.
Examples
-- Create a data source.
openGauss=# CREATE DATA SOURCE ds_tst1;
-- Delete the data source.
openGauss=# DROP DATA SOURCE ds_tst1 CASCADE;
openGauss=# DROP DATA SOURCE IF EXISTS ds_tst1 RESTRICT;
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