Describe the extraction process and the join processing for events passed from an input adapter or a previous IF-THEN statement (only if multiple IF-THEN statements are described).
If only an extraction process is to be used, do not describe a join expression and describe output() without arguments.
If only join processing is to be used, omit the part between IF and THEN and describe just the join processing and output processing.
Describe the extraction process (conditions) that filters events.
See
Refer to "2.5 Search Expression Format" for details.
Describe the join processing for joining to master data.
If multiple join expressions are described, events can be joined to more than one master data.
See
Refer to "2.6 Join Expression Format" for details.
Specify the output item from within an input event or a joined master data.
If join processing is described, the output is in CSV format. When output is in CSV format, each item is tied together by double quotation marks (").
Point
The output expression can be omitted if the input event is in CSV format and is not the last IF-THEN statement.
If only an extraction process is implemented, the input event is output as is (the event type does not change).
See
Refer to "2.7 Output Expression Format" for details.
