**Use case**
mysql repl to clickhouse

**Describe the solution you'd like**
Hope MaterializeMySQL engine can support MySQL prefix index



#include <Interpreters/MySQL/InterpretersMySQLDDLQuery.h>
#include <Parsers/IAST.h>
#include <Parsers/ASTLiteral.h>
#include <Parsers/ASTFunction.h>
#include <Parsers/ASTIdentifier.h>
#include <Parsers/ASTAlterQuery.h>
#include <Parsers/ASTCreateQuery.h>
#include <Parsers/ASTColumnDeclaration.h>
#include <Parsers/MySQL/ASTCreateQuery.h>
#include <Parsers/MySQL/ASTAlterCommand.h>
#include <Parsers/MySQL/ASTDeclareColumn.h>
#include <Parsers/MySQL/ASTDeclareOption.h>
#include <Parsers/MySQL/ASTCreateDefines.h>
#include <DataTypes/DataTypeFactory.h>
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeNullable.h>
#include <Parsers/MySQL/ASTDeclareIndex.h>
#include <Common/quoteString.h>
#include <Common/assert_cast.h>
#include <Interpreters/Context.h>
#include <Interpreters/InterpreterCreateQuery.h>
#include <Storages/IStorage.h>
namespace DB
{
namespace ErrorCodes
{
    extern const int UNKNOWN_TYPE;
    extern const int LOGICAL_ERROR;
    extern const int NOT_IMPLEMENTED;