Parsing JSON is not giving all values

[g2ktcf]

I am getting some odd behavior from attempting to expand a column with different JSON strings.  Each column can have different strings.  It appears that 

= Table.TransformColumns(#"Sorted Rows",{{"CustomFields", Json.Document}})

only grabs a certain number of records/rows.  I need it to see ALL of them.  We have sorted the table such that the problem row at 204 shows up at row 1, and everything works as expected.  But I have no control over where this record lies in production.  I am scratching my head here.  The image below is the newly sorted version.

[v-cgao-msft]

Hi @g2ktcf ，

Are you looking for output similar to this? Try unpivoting the expanded columns.

Advanced editor:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WUqiOUQpJLM52SSxJDcnMTTUyiVGyilEyMjAy0TUw0jU0CzEwsAIjPQMDgxglHTTlxijKjSwJKDdCVW6EprxWSUfJUClWJ1oJ6iy/sMQi54zEIhNTsEa4gTBxIwsLqEStAlCvEQV6jSnQa6IUGwsA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [CustomFields = _t, Column1 = _t]),
    #"Replaced Value" = Table.TransformColumnTypes(Source,{{"CustomFields", type text}, {"Column1", Int64.Type}}),
    #"Parsed JSON" = Table.TransformColumns(#"Replaced Value",{{"CustomFields", Json.Document}}),
    #"Expanded CustomFields" = Table.ExpandRecordColumn(#"Parsed JSON", "CustomFields", {"TaskDateTime24", "TaskDateTime23", "TaskDateTime22", "TaskNVarChar45", "TaskNVarChar288"}, {"TaskDateTime24", "TaskDateTime23", "TaskDateTime22", "TaskNVarChar45", "TaskNVarChar288"}),
    #"Unpivoted Columns" = Table.UnpivotOtherColumns(#"Expanded CustomFields", {"Column1"}, "Attribute", "Value")
in
    #"Unpivoted Columns"

If I misunderstood your question, could you tell me what your expected output is?

Best Regards,
Gao
Community Support Team

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[g2ktcf]

I need each Attribute to be its own Field/Column.  I have reached out to my data source for a possible SQL solution.   I thought that the parsing was working...but it only brings in partials.

[g2ktcf]

Sorry, I have an error above...each ROW can have different JSON pairs.