1#pragma once
2
3#include <Parsers/IAST.h>
4#include <Parsers/ASTQueryWithTableAndOutput.h>
5#include <Parsers/ASTQueryWithOnCluster.h>
6
7namespace DB
8{
9
10
11/** OPTIMIZE query
12 */
13class ASTOptimizeQuery : public ASTQueryWithTableAndOutput, public ASTQueryWithOnCluster
14{
15public:
16 /// The partition to optimize can be specified.
17 ASTPtr partition;
18 /// A flag can be specified - perform optimization "to the end" instead of one step.
19 bool final;
20 /// Do deduplicate (default: false)
21 bool deduplicate;
22
23 /** Get the text that identifies this element. */
24 String getID(char delim) const override
25 {
26 return "OptimizeQuery" + (delim + database) + delim + table + (final ? "_final" : "") + (deduplicate ? "_deduplicate" : "");
27 }
28
29 ASTPtr clone() const override
30 {
31 auto res = std::make_shared<ASTOptimizeQuery>(*this);
32 res->children.clear();
33
34 if (partition)
35 {
36 res->partition = partition->clone();
37 res->children.push_back(res->partition);
38 }
39
40 return res;
41 }
42
43 void formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
44
45 ASTPtr getRewrittenASTWithoutOnCluster(const std::string &new_database) const override
46 {
47 return removeOnCluster<ASTOptimizeQuery>(clone(), new_database);
48 }
49};
50
51}
52