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#pragma once
#include <Parsers/IAST.h>
#include <Parsers/ASTQueryWithTableAndOutput.h>
#include <Parsers/ASTQueryWithOnCluster.h>
namespace DB
{
/** OPTIMIZE query
*/
class ASTOptimizeQuery : public ASTQueryWithTableAndOutput, public ASTQueryWithOnCluster
{
public:
/// The partition to optimize can be specified.
ASTPtr partition;
/// A flag can be specified - perform optimization "to the end" instead of one step.
bool final = false;
/// Do deduplicate (default: false)
bool deduplicate = false;
/// Deduplicate by columns.
ASTPtr deduplicate_by_columns;
/// Delete 'is_deleted' data
bool cleanup = false;
/** Get the text that identifies this element. */
String getID(char delim) const override
{
return "OptimizeQuery" + (delim + getDatabase()) + delim + getTable() + (final ? "_final" : "") + (deduplicate ? "_deduplicate" : "")+ (cleanup ? "_cleanup" : "");
}
ASTPtr clone() const override
{
auto res = std::make_shared<ASTOptimizeQuery>(*this);
res->children.clear();
if (partition)
{
res->partition = partition->clone();
res->children.push_back(res->partition);
}
if (deduplicate_by_columns)
{
res->deduplicate_by_columns = deduplicate_by_columns->clone();
res->children.push_back(res->deduplicate_by_columns);
}
return res;
}
void formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
ASTPtr getRewrittenASTWithoutOnCluster(const WithoutOnClusterASTRewriteParams & params) const override
{
return removeOnCluster<ASTOptimizeQuery>(clone(), params.default_database);
}
QueryKind getQueryKind() const override { return QueryKind::Optimize; }
};
}
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