1 | #include <Parsers/ASTExpressionList.h> |
---|---|
2 | #include <Parsers/ParserCreateQuery.h> |
3 | #include <Interpreters/InterpreterCreateQuery.h> |
4 | #include <TableFunctions/parseColumnsListForTableFunction.h> |
5 | |
6 | |
7 | namespace DB |
8 | { |
9 | |
10 | namespace ErrorCodes |
11 | { |
12 | extern const int SYNTAX_ERROR; |
13 | } |
14 | |
15 | ColumnsDescription parseColumnsListFromString(const std::string & structure, const Context & context) |
16 | { |
17 | Expected expected; |
18 | |
19 | Tokens tokens(structure.c_str(), structure.c_str() + structure.size()); |
20 | IParser::Pos token_iterator(tokens); |
21 | |
22 | ParserColumnDeclarationList parser; |
23 | ASTPtr columns_list_raw; |
24 | |
25 | if (!parser.parse(token_iterator, columns_list_raw, expected)) |
26 | throw Exception("Cannot parse columns declaration list.", ErrorCodes::SYNTAX_ERROR); |
27 | |
28 | auto * columns_list = dynamic_cast<ASTExpressionList *>(columns_list_raw.get()); |
29 | if (!columns_list) |
30 | throw Exception("Could not cast AST to ASTExpressionList", ErrorCodes::LOGICAL_ERROR); |
31 | |
32 | return InterpreterCreateQuery::getColumnsDescription(*columns_list, context); |
33 | } |
34 | |
35 | } |
36 |