py_sql syntax suggestion

[tanshion]

类似以下这样的语法感觉更好阅读

#[py_sql2("
delete from biz_activity where delete_flag = 0
                  `if name != '':`
                     and name=#{name}
                  `if !ids.is_empty():`
                     and id in  ${ids.sql()}
")]
async fn py_exec(
    rb: &mut dyn Executor,
    name: &str,
    ids: &[i32],
) -> Result<ExecResult, Error> {
    impled!()
}

[zhuxiujia]

类似以下这样的语法感觉更好阅读

#[py_sql2("
delete from biz_activity where delete_flag = 0
                  `if name != '':`
                     and name=#{name}
                  `if !ids.is_empty():`
                     and id in  ${ids.sql()}
")]
async fn py_exec(
    rb: &mut dyn Executor,
    name: &str,
    ids: &[i32],
) -> Result<ExecResult, Error> {
    impled!()
}

` 符号用于标记字符串，而不是标记语法