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System functions (System Information)

SYSTEM$ADD_EVENT (for Snowflake Scripting)¶

Add an event for trace.

Use SYSTEM$ADD_EVENT to add an event when using trace events from a handler written in Snowflake Scripting.

For more information, refer to Emitting trace events in Snowflake Scripting.

Syntax¶

SYSTEM$ADD_EVENT('<name>', '<object>');
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Arguments¶

'name'

The name of the event to add.

'object'

An object containing name-value pairs representing the attributes to add.

Examples¶

Code in the following example uses the SYSTEM$ADD_EVENT function to add an event named name_a and an event named name_b. With name_b, it associates two attributes, score and pass. The code also sets two attributes for the span, key1 and key2.

CREATE OR REPLACE PROCEDURE pi_proc()
  RETURNS DOUBLE
  LANGUAGE SQL
  AS $$
  BEGIN
    -- Add an event without attributes
    SYSTEM$ADD_EVENT('name_a');

    -- Add an event with attributes
    LET attr := {'score': 89, 'pass': TRUE};
    SYSTEM$ADD_EVENT('name_b', attr);

    -- Set attributes for the span
    SYSTEM$SET_SPAN_ATTRIBUTES({'key1': 'value1', 'key2': TRUE});

    RETURN 3.14;
  END;
  $$;
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