ClickHouse/src/Interpreters/replaceAliasColumnsInQuery.cpp

23 lines
710 B
C++

#include <Interpreters/replaceAliasColumnsInQuery.h>
#include <Interpreters/ColumnAliasesVisitor.h>
#include <Storages/ColumnsDescription.h>
#include <Parsers/ASTSelectQuery.h>
namespace DB
{
bool replaceAliasColumnsInQuery(
ASTPtr & ast,
const ColumnsDescription & columns,
const NameToNameMap & array_join_result_to_source,
ContextPtr context,
const std::unordered_set<IAST *> & excluded_nodes)
{
ColumnAliasesVisitor::Data aliases_column_data(columns, array_join_result_to_source, context, excluded_nodes);
ColumnAliasesVisitor aliases_column_visitor(aliases_column_data);
aliases_column_visitor.visit(ast);
return aliases_column_data.changed;
}
}