1 | #pragma once |
---|---|
2 | |
3 | #include <Parsers/IAST.h> |
4 | #include <Common/quoteString.h> |
5 | |
6 | |
7 | namespace DB |
8 | { |
9 | |
10 | |
11 | /** USE query |
12 | */ |
13 | class ASTUseQuery : public IAST |
14 | { |
15 | public: |
16 | String database; |
17 | |
18 | /** Get the text that identifies this element. */ |
19 | String getID(char delim) const override { return "UseQuery"+ (delim + database); } |
20 | |
21 | ASTPtr clone() const override { return std::make_shared<ASTUseQuery>(*this); } |
22 | |
23 | protected: |
24 | void formatImpl(const FormatSettings & settings, FormatState &, FormatStateStacked) const override |
25 | { |
26 | settings.ostr << (settings.hilite ? hilite_keyword : "") << "USE "<< (settings.hilite ? hilite_none : "") << backQuoteIfNeed(database); |
27 | return; |
28 | } |
29 | }; |
30 | |
31 | } |
32 |