Make Vector stage in DataStage

The Make Vector stage is an active stage that combines specified columns of an input data record into a vector of columns. The stage has certain requirements.

The Make Vector stage is an active stage. It can have a single input link and a single output link.

The Make Vector stage combines specified columns of an input data record into a vector of columns. The stage has the following requirements:

• The input columns must form a numeric sequence, and must all be of the same type.
• The numbers must increase by one.
• The columns must be named column_name0 to column_namen, where column_name starts the name of a column and 0 and n are the first and last of its consecutive numbers.
• The columns do not have to be in consecutive order.

All these columns are combined into a vector of the same length as the number of columns (n+1). The vector is called column_name. Any input columns that do not have a name of that form will not be included in the vector but will be output as top-level columns.

The Split Vector stage performs the inverse operation. See "Split Vector Stage."

The stage editor has three tabs:

• Stage tab. This tab is always present and is used to specify general information about the stage.
• Input tab. This tab is where you specify the details about the single input set from which you are selecting records.
• Output tab. This tab is where you specify details about the processed data being output from the stage.

Input tab

The Make Vector stage expects one incoming data set.

Specify an optional description of the input link in the Description section. In the Partitions section, specify how incoming data is partitioned before the data is converted. In the Columns section, specify the column definitions of incoming data. In the Advanced section, you can change the default buffering settings for the input link.

Output tab

The Make Vector stage can have only one output link.

Use the Columns section to specify the column definitions of the data. In the Advanced section, you can change the default buffering settings for the output link.