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made index parser

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This commit is contained in:
Nikita Vasilev 2018-12-25 21:42:43 +03:00
parent 7b0fcecdf2
commit 6f986495dd
1 changed files with 51 additions and 0 deletions
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51
dbms/src/Parsers/ASTIndexDeclaration.h Normal file
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#pragma once
#include <Core/Types.h>
#include <Parsers/IAST.h>
#include <Parsers/ASTExpressionList.h>
#include <Parsers/ASTFunction.h>
#include <vector>
namespace DB
{
/** Index name(expr) TYPE typename(args) in create query
*/
class ASTIndexQuery : public IAST
{
public:
struct Index
{
String name;
ASTPtr expression_list;
ASTFunction type;
};
using Indexes = std::vector<Index>;
Indexes indexes;
/** Get the text that identifies this element. */
String getID(char) const override { return "Index"; }
ASTPtr clone() const override { return std::make_shared<ASTIndexQuery>(*this); }
void formatImpl(const FormatSettings & s, FormatState &state, FormatStateStacked frame) const override
{
for (ASTIndexQuery::Indexes::const_iterator it = indexes.begin(); it != indexes.end(); ++it)
{
if (it != indexes.begin())
s.ostr << s.nl_or_ws;
s.ostr << (s.hilite ? hilite_keyword : "") << "INDEX" << (s.hilite ? hilite_none : "") << " " << it->name;
s.ostr << "(";
it->expression_list->formatImpl(s, state, frame);
s.ostr << ") " << (s.hilite ? hilite_keyword : "") << "TYPE" << (s.hilite ? hilite_none : "");
it->type.formatImpl(s, state, frame);
}
}
};
}