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#pragma once
#include <Core/Block.h>
#include <Core/SortDescription.h>
#include <Parsers/IAST.h>
#include <Parsers/SelectUnionMode.h>
#include <Interpreters/SelectQueryOptions.h>
#include <Interpreters/ActionsDAG.h>
#include <Analyzer/IQueryTreeNode.h>
#include <Processors/QueryPlan/QueryPlan.h>
#include <QueryPipeline/StreamLocalLimits.h>
#include <Planner/PlannerContext.h>
#include <Storages/SelectQueryInfo.h>
namespace DB
{
/// Dump query plan
String dumpQueryPlan(QueryPlan & query_plan);
/// Dump query plan result pipeline
String dumpQueryPipeline(QueryPlan & query_plan);
/// Build common header for UNION query
Block buildCommonHeaderForUnion(const Blocks & queries_headers, SelectUnionMode union_mode);
/// Convert query node to ASTSelectQuery
ASTPtr queryNodeToSelectQuery(const QueryTreeNodePtr & query_node);
/// Build context for subquery execution
ContextPtr buildSubqueryContext(const ContextPtr & context);
/// Update mutable context for subquery execution
void updateContextForSubqueryExecution(ContextMutablePtr & mutable_context);
/// Build limits for storage
StorageLimits buildStorageLimits(const Context & context, const SelectQueryOptions & options);
/** Convert query tree expression node into actions dag.
* Inputs are not used for actions dag outputs.
* Only root query tree expression node is used as actions dag output.
*/
ActionsDAGPtr buildActionsDAGFromExpressionNode(const QueryTreeNodePtr & expression_node,
const ColumnsWithTypeAndName & input_columns,
const PlannerContextPtr & planner_context);
/// Returns true if prefix sort description is prefix of full sort descriptor, false otherwise
bool sortDescriptionIsPrefix(const SortDescription & prefix, const SortDescription & full);
/// Returns true if query node JOIN TREE contains ARRAY JOIN node, false otherwise
bool queryHasArrayJoinInJoinTree(const QueryTreeNodePtr & query_node);
/** Returns true if query node JOIN TREE contains QUERY node with WITH TOTALS, false otherwise.
* Function is applied recursively to subqueries in JOIN TREE.
*/
bool queryHasWithTotalsInAnySubqueryInJoinTree(const QueryTreeNodePtr & query_node);
/// Returns `and` function node that has condition nodes as its arguments
QueryTreeNodePtr mergeConditionNodes(const QueryTreeNodes & condition_nodes, const ContextPtr & context);
/// Replace tables nodes and table function nodes with dummy table nodes
using ResultReplacementMap = std::unordered_map<QueryTreeNodePtr, QueryTreeNodePtr>;
QueryTreeNodePtr replaceTablesAndTableFunctionsWithDummyTables(const QueryTreeNodePtr & query_node,
const ContextPtr & context,
ResultReplacementMap * result_replacement_map = nullptr);
/// Build subquery to read specified columns from table expression
QueryTreeNodePtr buildSubqueryToReadColumnsFromTableExpression(const NamesAndTypes & columns,
const QueryTreeNodePtr & table_expression,
const ContextPtr & context);
SelectQueryInfo buildSelectQueryInfo(const QueryTreeNodePtr & query_tree, const PlannerContextPtr & planner_context);
/// Build filter for specific table_expression
FilterDAGInfo buildFilterInfo(ASTPtr filter_expression,
const QueryTreeNodePtr & table_expression,
PlannerContextPtr & planner_context,
NameSet table_expression_required_names_without_filter = {});
ASTPtr parseAdditionalResultFilter(const Settings & settings);
}
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