Configuration Settings Functions

current_setting(setting_name)

Description: Specifies the current setting.

Return type: text

Note: current_setting obtains the current setting of setting_name by query. It is equivalent to the SHOW statement. For example:

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gaussdb=# SELECT current_setting('datestyle');

 current_setting
-----------------
 ISO, MDY
(1 row)

set_working_grand_version_num_manually(tmp_version)

Description: Upgrades new features of the database by switching the authorization version.

Return type: void

shell_in(type)

Description: Inputs a route for the shell type that has not yet been filled.

Return type: void

shell_out(type)

Description: Outputs a route for the shell type that has not yet been filled.

Return type: void

set_config(setting_name, new_value, is_local)

Description: Sets the parameter and returns a new value.

Return type: text

Note: The set_config parameter sets the value of setting_name to new_value. If is_local is true, the new value applies only to the current transaction. If you want new_value to apply to the current session, use false instead. This function is equivalent to the SQL statement SET. Example:

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gaussdb=# SELECT set_config('log_statement_stats', 'off', false);

 set_config
------------
 off
(1 row)