1 | #pragma once |
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2 | |
3 | #include <Parsers/ASTQueryWithTableAndOutput.h> |
4 | #include <Parsers/ASTQueryWithOnCluster.h> |
5 | |
6 | |
7 | namespace DB |
8 | { |
9 | |
10 | /** DROP query |
11 | */ |
12 | class ASTDropQuery : public ASTQueryWithTableAndOutput, public ASTQueryWithOnCluster |
13 | { |
14 | public: |
15 | enum Kind |
16 | { |
17 | Drop, |
18 | Detach, |
19 | Truncate, |
20 | }; |
21 | |
22 | Kind kind; |
23 | bool if_exists{false}; |
24 | |
25 | /// Useful if we already have a DDL lock |
26 | bool no_ddl_lock{false}; |
27 | |
28 | /// We dropping dictionary, so print correct word |
29 | bool is_dictionary{false}; |
30 | |
31 | /** Get the text that identifies this element. */ |
32 | String getID(char) const override; |
33 | ASTPtr clone() const override; |
34 | |
35 | ASTPtr getRewrittenASTWithoutOnCluster(const std::string & new_database) const override |
36 | { |
37 | return removeOnCluster<ASTDropQuery>(clone(), new_database); |
38 | } |
39 | |
40 | protected: |
41 | void formatQueryImpl(const FormatSettings & settings, FormatState &, FormatStateStacked) const override; |
42 | }; |
43 | |
44 | } |
45 |