The comments have been removed. The new/current format reflects my comments.
Sent from my iPhone > On May 9, 2016, at 5:06 AM, Till Westmann <[email protected]> wrote: > > Hi Preston, > > I don’t seem to be able to see your comments on the Wiki page [1]. > Where do I need to look? > > Cheers, > Till > >> On 8 May 2016, at 9:43, Preston Carman wrote: >> >> Nice job guys. I can see you are picking up how to create a data >> model. I have limited my comments to the wiki [1] for now. At a high >> level, I was impressed with your detail and thoughtful layouts. It >> reminds me of the age old trade off: speed vs space. At this time, >> lets error on saving space. The data model should the as compact as >> possible. >> >> I also found the AsterixDB serialization [2] we can use as a >> reference. Even though the AsterixDB data model includes object >> length, I would leave that out since all the XQuery data models do not >> include this property. >> >> Riyafa, take a look at the method AsterixDB uses for quick look ups (a >> hash value for the name). Consider the pros and cons between your >> method and AsterixDB's method: a list hash value for name and a sorted >> list of names. >> >> Also, take a look at my wiki comments. Its a great start! >> >> Mahalo, >> Preston >> >> [1] https://cwiki.apache.org/confluence/display/VXQUERY/JSONiq >> [2] >> https://cwiki.apache.org/confluence/display/ASTERIXDB/AsterixDB+Object+Serialization+Reference >> >>> On Sat, May 7, 2016 at 6:47 PM, christina pavlopoulou <[email protected]> >>> wrote: >>> Hi, >>> >>> I, also, designed an example for the json array [1] given the description I >>> wrote in the wiki page. >>> >>> [1] >>> https://docs.google.com/document/d/1GOAcvhw_F9cJrNmRq2TwZxI0wYRmvLEV3mywJS4H9Lg/edit >>> >>> Thank you, >>> Christina >>> >>> >>>> On 5/7/2016 11:22 AM, Riyafa Abdul Hameed wrote: >>>> >>>> Hi, >>>> >>>> I am attempting to create a doc on the JSONiq data model for objects[1] >>>> (It >>>> might be full of errors because I am doing the calculations manually). >>>> >>>> This is what I have come up on the data model for objects: >>>> >>>> The first byte would have the value tag, followed by the id (4 bytes) of >>>> the object. Then 4 bytes to represent the size of the object. Then another >>>> four bytes to represent the number of key-value pairs. Next few bytes >>>> represent the offsets of keys which follow (each offset is represented by >>>> 4 >>>> bytes). Ids would be assigned to the keys. Next few bytes would be a >>>> sorted >>>> list of ids for keys in alphabetical order. The following bytes would >>>> represent the keys in the object.Each key is a StringPointable followed by >>>> the id of the key. Each object would have a sequence pointable: the >>>> following bytes would be the number of Items (items are the values for >>>> keys) in the sequence. The next bytes would be the offset of each item in >>>> the sequence. The last bytes would be the values for each key followed by >>>> the respective id of the key. >>>> >>>> Hope it makes sense. >>>> >>>> My problem is, >>>> >>>> I have not provided for the white spaces in the object. What can I use to >>>> represent the white spaces? I cannot use a text node because object is not >>>> a node. >>>> >>>> >>>> [1] >>>> >>>> https://drive.google.com/open?id=1-wT0pE8rTTNIzuY4iTgvhqkdHmKGek4CgNthXN6mlm0 >>>> >>>> Thank you. >>>> >>>> Yours sincerely, >>>> Riyafa >>>> >>>> >>>>> On 26 April 2016 at 10:29, Preston Carman <[email protected]> wrote: >>>>> >>>>> We have two students working with us this summer through GSOC to complete >>>>> JSONiq specification for arrays and objects. I think the first step is to >>>>> define the data model used by JSONiq. The definition should be defined in >>>>> our wiki [1] before coding starts this summer. The wiki will allow the >>>>> community to discuss the JSON data model implementation in VXQuery. >>>>> >>>>> I updated the JSONiq wiki to help get the documentation started. Please >>>>> fill in the JSON data model based on the examples seen on our website >>>>> (links on the wiki page). >>>>> >>>>> Post here if you have any questions. >>>>> >>>>> [1] https://cwiki.apache.org/confluence/display/VXQUERY/JSONiq >>>
