README.md

You can make execution rules for databases, such as mysql, postgresql, redis, clickhouse, etc.

Grammar:

if
Condition 1
then
    Action 1
elseif
    Condition 2
then
    Action 2
else
    Action 3
end

Example:

```
1. str:
    '''
    if
    @fac.sql_type == "select"
    then
    @act.allow_execute "allow test ok"
    end
    '''
2. int or float:
    '''
    if
    @fac.is_admin_user == 1 and @fun.is_char_lower(@fac.sql_type)
    then
    @act.allow_execute
    end
    '''
3. list or dict:
    '''
    if
    @fac.sql_type in ["select","update"] or "address" not in {"name": "tom", "age": 18}
    then
    @act.allow_execute
    end
    '''
4. regex:
    ```
    if
    @fac.user matchs "ops_\\w+"
    then
    @act.allow_execute
    end
    ```

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