Package org.apache.druid.server

Class ClientQuerySegmentWalkerUtils

java.lang.Object

org.apache.druid.server.ClientQuerySegmentWalkerUtils

public class ClientQuerySegmentWalkerUtils
extends Object

Utilities for ClientQuerySegmentWalker

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	ClientQuerySegmentWalkerUtils.SubqueryResultLimit	Guardrail type on the subquery's results

Constructor Summary

Constructors

Constructor	Description
ClientQuerySegmentWalkerUtils()

Method Summary

Modifier and Type	Method	Description
static ClientQuerySegmentWalkerUtils.SubqueryResultLimit	getLimitType(long memoryLimitBytes, boolean cannotMaterializeToFrames)	Returns the limit type to be used for a given subquery.

Methods inherited from class java.lang.Object

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

Constructor Details

ClientQuerySegmentWalkerUtils

public ClientQuerySegmentWalkerUtils()

Method Details

getLimitType

public static ClientQuerySegmentWalkerUtils.SubqueryResultLimit getLimitType(long memoryLimitBytes,
 boolean cannotMaterializeToFrames)

Returns the limit type to be used for a given subquery. It returns MEMORY_LIMIT only if: 1. The user has enabled the 'maxSubqueryBytes' explicitly in the query context or as the server default 2. All the other subqueries in the query so far didn't fall back to ROW_BASED limit due to an error while executing the query In all the other cases, it returns ROW_LIMIT