SET

Sets a property, returns the value of an existing property or returns all SQLConf properties with value and meaning.

Syntax 

SET
SET [ -v ]
SET property_key[ = property_value ]

Parameters

  • -v

    Outputs the key, value and meaning of existing SQLConf properties.

  • property_key

    Returns the value of specified property key.

  • property_key=property_value

    Sets the value for a given property key. If an old value exists for a given property key, then it gets overridden by the new value.

Examples 

-- Set a property.
SET spark.sql.variable.substitute=false;

-- List all SQLConf properties with value and meaning.
SET -v;

-- List all SQLConf properties with value for current session.
SET;

-- List the value of specified property key.
SET spark.sql.variable.substitute;
+-----------------------------+-----+
|                          key|value|
+-----------------------------+-----+
|spark.sql.variable.substitute|false|
+-----------------------------+-----+