modifier.unset(field);
break;
case MqlParser.PUSH:
field = child(modiferTree, 0).getText();
value = readVariableLiteral(child(modiferTree, 1), ctx);
modifier.push(field, value);
break;
case MqlParser.PUSH_ALL:
field = child(modiferTree, 0).getText();
value = readVariableLiteral(child(modiferTree, 1), ctx);
assertType(value, modiferTree, Object[].class);