Package org.apache.calcite.schema

Schema SPI.

The interfaces in this package define the objects used by the SQL validator to validate SQL abstract syntax trees and resolve identifiers to objects.

Interface Summary

Interface	Description
AggregateFunction	Function that combines several values into a scalar result.
CustomColumnResolvingTable	Extension to Table that specifies a custom way to resolve column names.
ExtensibleTable	Table whose row type can be extended to include extra fields.
FilterableTable	Table that can be scanned, optionally applying supplied filter expressions, without creating an intermediate relational expression.
Function	Named expression that accepts parameters and returns a result.
FunctionParameter	Parameter to a Function.
ImplementableAggFunction	Function that can be translated to java code.
ImplementableFunction	Function that can be translated to java code.
Member	A named expression in a schema.
ModifiableTable	A table that can be modified.
ModifiableView	A modifiable view onto ModifiableTable.
Path	Path from a root schema to a particular object (schema, table, function).
ProjectableFilterableTable	Table that can be scanned, optionally applying supplied filter expressions, and projecting a given list of columns, without creating an intermediate relational expression.
QueryableTable	Extension to Table that can translate itself to a Queryable.
ScalarFunction	Function that returns a scalar result.
ScannableTable	Table that can be scanned without creating an intermediate relational expression.
Schema	A namespace for tables and functions.
SchemaFactory	Factory for Schema objects.
SchemaPlus	Extension to the Schema interface.
SchemaVersion	An interface to represent a version ID that can be used to create a read-consistent view of a Schema.
SemiMutableSchema	Schema to which materializations can be added.
Statistic	Statistics about a Table.
StreamableTable	Table that can be converted to a stream.
Table	Table.
TableFactory<T extends Table>	Factory for Table objects.
TableFunction	Function that returns a table during execution time.
TableMacro	Function that returns a Table.
TranslatableTable	Extension to Table that specifies how it is to be translated to a relational expression.
Wrapper	Mix-in interface that allows you to find sub-objects.

Class Summary

Class	Description
Schemas	Utility functions for schemas.
Schemas.DummyDataContext	Dummy data context that has no variables.
Schemas.PathImpl	Implementation of Path.
Statistics	Utility functions regarding Statistic.

Enum Summary

Enum	Description
ColumnStrategy	Describes how a column gets populated.
Schema.TableType	Table type.