# Structs
Aggregate builds aggregate operations.
Dataset is segment building block.
Earliest builds a window operation over the earliest data from a partition.
Eq equal to filter.
Field selects a field to return.
Filter --.
GroupBy a set of fields.
Gt greater than filter.
Gte greater than or equal to filter.
In in filter.
InSegment in filter.
Latest builds a window operation over the latest data from a partition.
Lt less than filter.
Lte less than or equal to filter.
NotEq not equal to filter.
NotIn not in filter.
NotInSegment not in filter.
OrderBy a set of fields.
Query user inputs to generate a SQL query.
WindowField returns the following in the parent select.