Grammar

First (Col) Grammar

(What is this notation?)

Definitions:

columnSet: ColumnSet<*>

columnGroup: SingleColumn<DataRow<*>> | String| ColumnPath

condition: ColumnFilter

What can be called directly in the Columns Selection DSL:

first[ { condition}]

What can be called on a ColumnSet:

columnSet

    .first[ { condition}]

What can be called on a Column Group (reference):

columnGroup

    .firstCol[ { condition}]