1#pragma once
2
3#include <Core/Field.h>
4#include <Core/Types.h>
5#include <Common/FieldVisitors.h>
6#include <Common/quoteString.h>
7#include <Parsers/ASTExpressionList.h>
8#include <Parsers/ASTFunction.h>
9#include <Parsers/IAST.h>
10
11#include <vector>
12
13
14namespace DB
15{
16
17/** name BY expr TYPE typename(args) GRANULARITY int in create query
18 */
19class ASTIndexDeclaration : public IAST
20{
21public:
22 String name;
23 IAST * expr;
24 ASTFunction * type;
25 UInt64 granularity;
26
27 /** Get the text that identifies this element. */
28 String getID(char) const override { return "Index"; }
29
30 ASTPtr clone() const override
31 {
32 auto res = std::make_shared<ASTIndexDeclaration>();
33
34 res->name = name;
35 res->granularity = granularity;
36
37 if (expr)
38 res->set(res->expr, expr->clone());
39 if (type)
40 res->set(res->type, type->clone());
41 return res;
42 }
43
44 void formatImpl(const FormatSettings & s, FormatState & state, FormatStateStacked frame) const override
45 {
46 frame.need_parens = false;
47 std::string indent_str = s.one_line ? "" : std::string(4 * frame.indent, ' ');
48
49 s.ostr << s.nl_or_ws << indent_str;
50 s.ostr << backQuoteIfNeed(name);
51 s.ostr << " ";
52 expr->formatImpl(s, state, frame);
53 s.ostr << (s.hilite ? hilite_keyword : "") << " TYPE " << (s.hilite ? hilite_none : "");
54 type->formatImpl(s, state, frame);
55 s.ostr << (s.hilite ? hilite_keyword : "") << " GRANULARITY " << (s.hilite ? hilite_none : "");
56 s.ostr << granularity;
57 }
58};
59
60}
61