[Feature] Support SQL string composition

The redshift connector currently supports parameterised queries (aka bind variables) which is great.

However some of our use cases require other parts of a Redshift SQL query to be dynamically created. These include components such as the table name, the schema... and are commonly referred to as Identifiers. For example ``` f"SELECT * FROM {schema}.{table}"```

Other libraries such as [pg8000](https://github.com/tlocke/pg8000#many-sql-statements-can-t-be-parameterized) and [psycopg](https://www.psycopg.org/docs/sql.html) have developed modules to escape these variables via identifiers.

Beyond usability, the main advantage of this approach is that it helps with SQL injection attacks.

首先检查 connector 现有的参数化查询支持，然后比较 pg8000 和 psycopg 文档中介绍的标识符组合方法。完成的标准是用户能够安全地组合动态 Redshift 标识符（例如 schema 和表名），并能防止 SQL injection。

由索引模型根据 Issue 内容生成。