You can connect mining flow operators in the mining editor
canvas to model processing paths between operators. Operators have
operator-level connections and column-level connections.
Before you begin
Place two mining flow operators
next to each other in the canvas and define the properties for the
first one (a table source operator, for example).
Procedure
To connect mining flow operators,
complete the following steps:
- Click the first operator's output port. The mouse pointer
will change to indicate connection mode.
- Move the pointer to the second operator's input port. When
the pointer changes to indicate that a connection is possible, click
to create the connection. The connection line snaps into place and
the mouse pointer switches back to selection mode.
- When you connect two operators and the properties for both
operators have already been defined, such as the last transform operator
in a data flow and a defined table target operator, the Select Column
Connections window opens. Select the appropriate type of automatic
column connection:
- Do not connect automatically. Select
this option if you want to create individual column connections with
the connection tool.
- Propagate columns. Select this option
if you want to copy all of the columns from the previous operator
into the input schema for the second operator.
- Connect by position. Select this option
if you want automatic connections based on column order.
- Connect by name. Select this option
if you want automatic connections based on column names.
- Edit column connections. Select this
option to open a separate window where you can define column connections.
This window also opens when you define a connection, delete
it, and try to define it again. You can access column-level connection
options at any time by right-clicking the associated operator-level
connections.
- Expand the connected operators to inspect or modify column-level
connections. Only expanded operators show column-level connections.
In operators that have scrolling column lists, the complete column
level connection will only appear if the connected columns of both
operators are in view. A broken line indicates a column connection
when only one end of the column is in view.
- To create an individual column-level connection, click the
column output icon on the first operator and move the pointer to the
column input icon on the target.
- To delete a column-level connection, select the connection
and press the Delete key.
- To create a second outgoing connection from an output port
to a different operator, position the mouse near the icon in the output
port. You can only create a second connection when the mouse pointer
indicates connection mode. If the mouse pointer is positioned over
the existing connection in the output port, the second connection
cannot be created.