ClickHouse/dbms/src/Parsers/ASTSelectWithUnionQuery.cpp

39 lines
1.1 KiB
C++

#include <Parsers/ASTSelectWithUnionQuery.h>
#include <Parsers/ASTSelectQuery.h>
#include <Common/typeid_cast.h>
namespace DB
{
ASTPtr ASTSelectWithUnionQuery::clone() const
{
auto res = std::make_shared<ASTSelectWithUnionQuery>(*this);
res->children.clear();
res->list_of_selects = list_of_selects->clone();
res->children.push_back(res->list_of_selects);
cloneOutputOptions(*res);
return res;
}
void ASTSelectWithUnionQuery::formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
{
std::string indent_str = settings.one_line ? "" : std::string(4 * frame.indent, ' ');
for (ASTs::const_iterator it = list_of_selects->children.begin(); it != list_of_selects->children.end(); ++it)
{
if (it != list_of_selects->children.begin())
settings.ostr
<< settings.nl_or_ws << indent_str << (settings.hilite ? hilite_keyword : "")
<< "UNION ALL" << (settings.hilite ? hilite_none : "")
<< settings.nl_or_ws;
(*it)->formatImpl(settings, state, frame);
}
}
}