ClickHouse/src/Analyzer/AggregationUtils.h

34 lines
1.1 KiB
C++

#pragma once
#include <Analyzer/IQueryTreeNode.h>
namespace DB
{
/** Collect aggregate function nodes in node children.
* Do not visit subqueries.
*/
QueryTreeNodes collectAggregateFunctionNodes(const QueryTreeNodePtr & node);
/** Collect aggregate function nodes in node children and add them into result.
* Do not visit subqueries.
*/
void collectAggregateFunctionNodes(const QueryTreeNodePtr & node, QueryTreeNodes & result);
/** Returns true if there are aggregate function nodes in node children, false otherwise.
* Do not visit subqueries.
*/
bool hasAggregateFunctionNodes(const QueryTreeNodePtr & node);
/** Assert that there are no aggregate function nodes in node children.
* Do not visit subqueries.
*/
void assertNoAggregateFunctionNodes(const QueryTreeNodePtr & node, const String & assert_no_aggregates_place_message);
/** Assert that there are no GROUPING function nodes in node children.
* Do not visit subqueries.
*/
void assertNoGroupingFunctionNodes(const QueryTreeNodePtr & node, const String & assert_no_grouping_function_place_message);
}