org.apache.calcite.plan

Interface RelDigest

@API(since="1.24",
     status=INTERNAL)
public interface RelDigest

The digest is the exact representation of the corresponding RelNode, at anytime, anywhere. The only difference is that digest is compared using #equals and #hashCode, which are prohibited to override for RelNode, for legacy reasons.

INTERNAL USE ONLY.

Method Summary

Modifier and Type	Method and Description
void	clear() Reset state, possibly cache of hash code.
RelNode	getRel() Returns the relnode that this digest is associated with.

Method Detail

clear

void clear()

Reset state, possibly cache of hash code.

getRel

RelNode getRel()

Returns the relnode that this digest is associated with.