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TableFunctionDictionary.h
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32 lines (23 loc) · 881 Bytes
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#pragma once
#include <TableFunctions/ITableFunction.h>
namespace DB
{
class Context;
/// dictionary(dictionary_name) - creates a temporary storage from dictionary
class TableFunctionDictionary final : public ITableFunction
{
public:
static constexpr auto name = "dictionary";
std::string getName() const override
{
return name;
}
void parseArguments(const ASTPtr & ast_function, ContextPtr context) override;
ColumnsDescription getActualTableStructure(ContextPtr context, bool is_insert_query) const override;
StoragePtr executeImpl(const ASTPtr & ast_function, ContextPtr context, const std::string & table_name, ColumnsDescription, bool is_insert_query) const override;
const char * getStorageTypeName() const override { return "Dictionary"; }
private:
String dictionary_name;
ColumnsDescription dictionary_columns;
};
}