1 | #pragma once |
---|---|
2 | |
3 | #include <Parsers/ASTWithAlias.h> |
4 | |
5 | |
6 | namespace DB |
7 | { |
8 | |
9 | /// Parameter in query with name and type of substitution ({name:type}). |
10 | /// Example: SELECT * FROM table WHERE id = {pid:UInt16}. |
11 | class ASTQueryParameter : public ASTWithAlias |
12 | { |
13 | public: |
14 | String name; |
15 | String type; |
16 | |
17 | ASTQueryParameter(const String & name_, const String & type_) : name(name_), type(type_) {} |
18 | |
19 | /** Get the text that identifies this element. */ |
20 | String getID(char delim) const override { return String("QueryParameter") + delim + name + ':' + type; } |
21 | |
22 | ASTPtr clone() const override { return std::make_shared<ASTQueryParameter>(*this); } |
23 | |
24 | protected: |
25 | void formatImplWithoutAlias(const FormatSettings & settings, FormatState &, FormatStateStacked) const override; |
26 | void appendColumnNameImpl(WriteBuffer & ostr) const override; |
27 | }; |
28 | |
29 | } |
30 |