Noob question - table row showing as JSON

I am trying to build a simple Retool table using data from a Mongo Atlas DB. Everything works fine, except that when I query an embedded document inside my Mongo data, I get each row populated with:

{ "key1" : 23, "key2": 24, "key3": 25 }

In other words, it presents the JSON and the values are correct, but it doesn't split it into columns. What am I missing here? Do I need to use a Transformer.



I recorded a video with the same data integrating a table, see if it helps.

Thank you very much for taking the time to record this. I am still trying to figure this out.

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No need to thank me, I like to help and knowledge needs to be shared.

I will try to connect more with the Retool community on the Forum, so let's go!

If you still cannot identify the problem, I will suggest the following steps:

Steps in Retool
1 - Try to create another app, another query and validate in a simple scenario, for example one table and one query.

Mongo DB steps
1 - Try to create the same data setup directly
2 - Try to create more data scenarios
3 - Test various scenarios also in other queries in Retool after that

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Yes, that makes sense. The main problem seems to be that my MongoDB contains nested objects so it is more like:

  "_id": {
    "$oid": "634cbaed57ed982055e0ded9"
  "date_str": "2022-10-16",
  "data": {
    "subdata1": 27.23,
    "subdata2": 28.1,
    "subdata3": 94.2

So, the problem is more how to extract elements from a subdocument like "data.subdata" and have each show up as a column in a table. This feels like it should be easy but I am missing something! :slight_smile:

Figured it out!

When creating the table column, in the Mapped Value field enter:


I do have to create a new column for each entry, but that is OK for my use case!


Yeah! Congratz!!!

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