FROM method

Express FROM(
  1. Object express
)

Implementation

Express FROM(Object express) {
  this << "FROM";
  switch (express) {
    case String s:
      return this << s;
    case Express ex:
      return this << ex;
    case Type t:
      var p = TableProto.of(t);
      return this << p.nameSQL;
    case TableProto p:
      return this << p.nameSQL;
  }
  errorSQL("FROM not support parameter: $express");
}