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#pragma once
#include <Analyzer/IQueryTreeNode.h>
#include <Interpreters/Context_fwd.h>
namespace DB
{
/// Returns true if node part of root tree, false otherwise
bool isNodePartOfTree(const IQueryTreeNode * node, const IQueryTreeNode * root);
/// Returns true if function name is name of IN function or its variations, false otherwise
bool isNameOfInFunction(const std::string & function_name);
/// Returns true if function name is name of local IN function or its variations, false otherwise
bool isNameOfLocalInFunction(const std::string & function_name);
/// Returns true if function name is name of global IN function or its variations, false otherwise
bool isNameOfGlobalInFunction(const std::string & function_name);
/// Returns global IN function name for local IN function name
std::string getGlobalInFunctionNameForLocalInFunctionName(const std::string & function_name);
/// Add unique suffix to names of duplicate columns in block
void makeUniqueColumnNamesInBlock(Block & block);
/** Build cast function that cast expression into type.
* If resolve = true, then result cast function is resolved during build, otherwise
* result cast function is not resolved during build.
*/
QueryTreeNodePtr buildCastFunction(const QueryTreeNodePtr & expression,
const DataTypePtr & type,
const ContextPtr & context,
bool resolve = true);
/// Try extract boolean constant from condition node
std::optional<bool> tryExtractConstantFromConditionNode(const QueryTreeNodePtr & condition_node);
/** Add table expression in tables in select query children.
* If table expression node is not of identifier node, table node, query node, table function node, join node or array join node type throws logical error exception.
*/
void addTableExpressionOrJoinIntoTablesInSelectQuery(ASTPtr & tables_in_select_query_ast, const QueryTreeNodePtr & table_expression, const IQueryTreeNode::ConvertToASTOptions & convert_to_ast_options);
/// Extract table, table function, query, union from join tree
QueryTreeNodes extractTableExpressions(const QueryTreeNodePtr & join_tree_node);
/// Extract left table expression from join tree
QueryTreeNodePtr extractLeftTableExpression(const QueryTreeNodePtr & join_tree_node);
/** Build table expressions stack that consists from table, table function, query, union, join, array join from join tree.
*
* Example: SELECT * FROM t1 INNER JOIN t2 INNER JOIN t3.
* Result table expressions stack:
* 1. t1 INNER JOIN t2 INNER JOIN t3
* 2. t3
* 3. t1 INNER JOIN t2
* 4. t2
* 5. t1
*/
QueryTreeNodes buildTableExpressionsStack(const QueryTreeNodePtr & join_tree_node);
/** Assert that there are no function nodes with specified function name in node children.
* Do not visit subqueries.
*/
void assertNoFunctionNodes(const QueryTreeNodePtr & node,
std::string_view function_name,
int exception_code,
std::string_view exception_function_name,
std::string_view exception_place_message);
/** Returns true if there is function node with specified function name in node children, false otherwise.
* Do not visit subqueries.
*/
bool hasFunctionNode(const QueryTreeNodePtr & node, std::string_view function_name);
/** Replace columns in node children.
* If there is column node and its source is specified table expression node and there is
* node for column name in map replace column node with node from map.
* Do not visit subqueries.
*/
void replaceColumns(QueryTreeNodePtr & node,
const QueryTreeNodePtr & table_expression_node,
const std::unordered_map<std::string, QueryTreeNodePtr> & column_name_to_node);
}
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