Class ReturnTypeSpecification

java.lang.Object

io.trino.spi.function.table.ReturnTypeSpecification

Direct Known Subclasses:

ReturnTypeSpecification.DescribedTable, ReturnTypeSpecification.GenericTable, ReturnTypeSpecification.OnlyPassThrough

@Experimental(eta="2022-10-31")
public abstract class ReturnTypeSpecification
extends Object

The return type declaration refers to the proper columns of the table function. These are the columns produced by the table function as opposed to the columns of input relations passed through by the table function.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ReturnTypeSpecification.DescribedTable	The proper columns of the table function are known at function declaration time.
static class	ReturnTypeSpecification.GenericTable	The proper columns of the table function are not known at function declaration time.
static class	ReturnTypeSpecification.OnlyPassThrough	The table function has no proper columns.

Constructor Summary

Constructors

Constructor	Description
ReturnTypeSpecification()

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ReturnTypeSpecification

public ReturnTypeSpecification()