blob: 5b1abc36ae96b31957d7a72a2e6ee328428f9ac7 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
#pragma once
#include <Analyzer/IQueryTreeNode.h>
namespace DB
{
/** List node represents list of query tree nodes in query tree.
*
* Example: SELECT column_1, 1, 'constant_value' FROM table.
* column_1, 1, 'constant_value' is list query tree node.
*/
class ListNode;
using ListNodePtr = std::shared_ptr<ListNode>;
class ListNode final : public IQueryTreeNode
{
public:
using iterator = QueryTreeNodes::iterator;
using const_iterator = QueryTreeNodes::const_iterator;
/// Initialize list node with empty nodes
ListNode();
/// Initialize list node with nodes
explicit ListNode(QueryTreeNodes nodes);
/// Get list nodes
const QueryTreeNodes & getNodes() const
{
return children;
}
/// Get list nodes
QueryTreeNodes & getNodes()
{
return children;
}
QueryTreeNodeType getNodeType() const override
{
return QueryTreeNodeType::LIST;
}
void dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state, size_t indent) const override;
iterator begin() { return children.begin(); }
const_iterator begin() const { return children.begin(); }
iterator end() { return children.end(); }
const_iterator end() const { return children.end(); }
protected:
bool isEqualImpl(const IQueryTreeNode & rhs) const override;
void updateTreeHashImpl(HashState &) const override;
QueryTreeNodePtr cloneImpl() const override;
ASTPtr toASTImpl(const ConvertToASTOptions & options) const override;
};
}
|
