Correctly check subscripted column for IN expression

[tedyu]

In WhereExprState::AnalyzeColumnOp :

    case QL_OP_IN: {
      if (statement_type_ != TreeNodeOpcode::kPTSelectStmt) {
        return sem_context->Error(expr, "IN expression not supported for write operations",
                                  ErrorCode::FEATURE_NOT_YET_IMPLEMENTED);
      }

      if (col_args != nullptr) {
        return sem_context->Error(expr, "IN expression not supported for subscripted column",
                                  ErrorCode::CQL_STATEMENT_INVALID);

Looking at code in WhereExprState::AnalyzeColumnOp involving subscripted column,

            if (col_desc->ql_type()->IsJson()) {
              json_col_ops_->emplace_back(col_desc, col_args, value, expr->ql_op());
            } else {
              subscripted_col_ops_->emplace_back(col_desc, col_args, value, expr->ql_op());

It seems we should also check whether col_desc->ql_type()->IsJson() is false. Otherwise the error shouldn't be raised for json column.

There is more to be done in making IN clause involving json path expression work apart from refining this check.