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#include <Common/quoteString.h>
#include <IO/Operators.h>
#include <Parsers/ASTDropIndexQuery.h>
namespace DB
{
/** Get the text that identifies this element. */
String ASTDropIndexQuery::getID(char delim) const
{
return "DropIndexQuery" + (delim + getDatabase()) + delim + getTable();
}
ASTPtr ASTDropIndexQuery::clone() const
{
auto res = std::make_shared<ASTDropIndexQuery>(*this);
res->children.clear();
res->index_name = index_name->clone();
res->children.push_back(res->index_name);
cloneTableOptions(*res);
return res;
}
void ASTDropIndexQuery::formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const
{
frame.need_parens = false;
std::string indent_str = settings.one_line ? "" : std::string(4u * frame.indent, ' ');
settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str;
settings.ostr << "DROP INDEX " << (if_exists ? "IF EXISTS " : "");
index_name->formatImpl(settings, state, frame);
settings.ostr << " ON ";
settings.ostr << (settings.hilite ? hilite_none : "");
if (table)
{
if (database)
{
settings.ostr << indent_str << backQuoteIfNeed(getDatabase());
settings.ostr << ".";
}
settings.ostr << indent_str << backQuoteIfNeed(getTable());
}
formatOnCluster(settings);
}
ASTPtr ASTDropIndexQuery::convertToASTAlterCommand() const
{
auto command = std::make_shared<ASTAlterCommand>();
command->type = ASTAlterCommand::DROP_INDEX;
command->index = index_name->clone();
command->if_exists = if_exists;
return command;
}
}
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