Package org.apache.drill.exec.physical.resultSet.project

Interface Summary

Interface	Description
QualifierContainer
RequestedColumn	Plan-time properties of a requested column.
RequestedTuple	Represents the set of columns projected for a tuple (row or map.) Each column may have structure: a set of referenced names or array indices.

Class Summary

Class	Description
BaseRequestedColumn
ImpliedTupleRequest	Represents a wildcard: SELECT * when used at the root tuple.
ProjectionChecker	Utility class to check if a column is consistent with the projection requested for a query.
Projections	Converts a projection list passed to an operator into a scan projection list, coalescing multiple references to the same column into a single reference.
Qualifier	Represents one level of qualifier for a column.
RequestedColumnImpl	Represents one name element.
RequestedTupleImpl	Represents an explicit projection at some tuple level.
RequestedWildcardColumn
TestProjectedPath	Projection creates a pattern which we match against a particular type to see if the projection path is consistent with the type.
TestTupleProjection	Test the projection list parser: parses a list of SchemaPath items into a detailed structure, handling duplicate or overlapping items.

Enum Summary

Enum	Description
RequestedTuple.TupleProjectionType