// include the latest version of the regex crate in your Cargo.toml
extern crate regex;
use regex::Regex;
fn main() {
  let regex = Regex::new(r"(?mi)(select\s+|([^,]+as)|from.+)").unwrap();
  let string = "SELECT id, id_alarm, ne_name, extract(epoch from create_alarm_dt) as create_alarm_dt, extract(epoch from create_date) as create_date, extract(epoch from modify_date) as modify_date, create_user, modify_user, description FROM ecus.prog_ack_comments WHERE create_user='avpozov'
 id,id_alarm,   ne_name, extract(epoch from create_alarm_dt) as create_alarm_dt, extract(epoch from create_date) as create_date, extract(epoch from modify_date) as modify_date, create_user, modify_user, description";
  let substitution = "";
  
  // result will be a String with the substituted value
  let result = regex.replace_all(string, substitution);
  
  println!("{}", result);
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/