docs: private boolean explanSpecialCondWithBothSidesAreLiterals(SQLBinaryOpExpr bExpr, Where where) throws SqlParseException {
          if ((bExpr.getLeft() instanceof SQLNumericLiteralExpr || bExpr.getLeft() instanceof SQLCharExpr) &&
                  (bExpr.getRight() instanceof SQLNumericLiteralExpr || bExpr.getRight() instanceof SQLCharExpr)
                  ) {
              SQLMethodInvokeExpr sqlMethodInvokeExpr = new SQLMethodInvokeExpr("script", null);
              String operator = bExpr.getOperator().getName();
              if (operator.equals("=")) {
                  operator = "==";
              }
              sqlMethodInvokeExpr.addParameter(
                      new SQLCharExpr(Util.expr2Object(bExpr.getLeft(), "'") +
                              " " + operator + " " +
                              Util.expr2Object(bExpr.getRight(), "'"))
              );
  
              explanCond("AND", sqlMethodInvokeExpr, where);
              return true;
          }
          return false;
      }