ClickHouse/dbms/TableFunctions/TableFunctionMerge.h

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#pragma once
#include <TableFunctions/ITableFunction.h>
namespace DB
{
/* merge (db_name, tables_regexp) - creates a temporary StorageMerge.
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* The structure of the table is taken from the first table that came up, suitable for regexp.
* If there is no such table, an exception is thrown.
*/
class TableFunctionMerge : public ITableFunction
{
public:
static constexpr auto name = "merge";
std::string getName() const override { return name; }
private:
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StoragePtr executeImpl(const ASTPtr & ast_function, const Context & context, const std::string & table_name) const override;
};
}