Designing a Filter Operator - Parallel Transporter

Function

Process

Initiate

None.

Execute

1 Use the Get Table Schema List function to get the input data schema handle.

2 Use the Get Row function to read a row.

3 Use the Get Column Schema function to get the column handles associated with the input data schema.

4 For each of the column handles involved in the filter task:

5 If all column values satisfy the filter criteria, return PXSTC_EndMethod status, otherwise return PXSTC_DiscardRow status.

Terminate

None.