History comparison of deleted parameters with null values

Overview

Deleted parameters that contained null values are not displayed in historical comparisons. Additionally, they do not display Created At or Modified At Times.
A parameter named empty.empty contained a null value that was deleted . Since the parameter contained a null value empty.empty is not displayed in a projects historical differences table.
cloudtruth --project Demo parameters differences --as-of 2021-08-26
+-------------------+---------+----------------------+
| Parameter | Current | 2021-08-26T00:00:00Z |
+-------------------+---------+----------------------+
| empty | - | |
| empty.empty_empty | - | |
| lower | - | case |
| nil | - | |
| pill | red | - |
+-------------------+---------+----------------------+
The parameter empty.empty displays empty times when searching a project on a previous date.
cloudtruth --project Demo parameters ls -v --as-of 2021-08-26 --show-times
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+-----------------------------+-----------------------------+
| Name | Value | Source | Type | Secret | Description | Created At | Modified At |
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+-----------------------------+-----------------------------+
| CHARACTER | NEO | default | internal | false | | 2021-08-25T14:18:59.117018Z | 2021-08-25T14:18:59.117023Z |
| TF_VAR_resource_tags | {"Name":"Cloudtruth-Instance","project":"CloudTruth Run Terraform","environment":"default"} | default | internal | false | | 2021-08-25T14:18:59.129339Z | 2021-08-25T14:18:59.129344Z |
| empty | | default | internal | false | | 2021-08-25T14:18:59.119914Z | 2021-08-25T14:18:59.119919Z |
| empty.empty | - | | internal | false | | | |
| empty.empty_empty | | default | internal | false | | 2021-08-25T14:18:59.120008Z | 2021-08-25T14:18:59.120013Z |
| lower | case | default | internal | false | | 2021-08-25T14:18:59.122449Z | 2021-08-25T14:18:59.122454Z |
| nil | | default | internal | false | | 2021-08-25T14:18:59.122730Z | 2021-08-25T14:18:59.122735Z |
| node.name | "${NODE_NAME}" | default | internal | false | | 2021-08-25T14:18:59.122762Z | 2021-08-25T14:18:59.122766Z |
| secret | ***** | default | internal | true | | 2021-08-25T14:18:59.123741Z | 2021-08-25T14:18:59.123746Z |
| service.app.cpu | 4 | default | internal | false | | 2021-08-25T14:18:59.126921Z | 2021-08-25T14:18:59.126925Z |
| service.app.memory | 8 | default | internal | false | | 2021-08-25T14:18:59.126952Z | 2021-08-25T14:18:59.126957Z |
| service.demo.timeout | 200 | default | internal | false | | 2021-08-25T14:18:59.127014Z | 2021-08-25T14:18:59.127019Z |
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+-----------------------------+-----------------------------+

Resolution

You can view a list of values a project contained by directly passing a date to a project and viewing the values and comparing the parameters to a current listing.
Parameters listed as of 2021-08-26
cloudtruth --project Demo parameters ls -v --as-of 2021-08-26
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+
| Name | Value | Source | Type | Secret | Description |
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+
| CHARACTER | NEO | default | internal | false | |
| TF_VAR_resource_tags | {"Name":"Cloudtruth-Instance","project":"CloudTruth Run Terraform","environment":"default"} | default | internal | false | |
| empty | | default | internal | false | |
| empty.empty | - | | internal | false | |
| empty.empty_empty | | default | internal | false | |
| lower | case | default | internal | false | |
| nil | | default | internal | false | |
| node.name | "${NODE_NAME}" | default | internal | false | |
| secret | ***** | default | internal | true | |
| service.app.cpu | 4 | default | internal | false | |
| service.app.memory | 8 | default | internal | false | |
| service.demo.timeout | 200 | default | internal | false | |
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+
Comparing the current parameters
we can find the parameter empty.empty is a deleted and contained a null value.
cloudtruth --project Demo parameters ls -v
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+
| Name | Value | Source | Type | Secret | Description |
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+
| CHARACTER | NEO | default | internal | false | |
| TF_VAR_resource_tags | {"Name":"Cloudtruth-Instance","project":"CloudTruth Run Terraform","environment":"default"} | default | internal | false | |
| node.name | "${NODE_NAME}" | default | internal | false | |
| pill | red | default | internal | false | |
| secret | ***** | default | internal | true | |
| service.app.cpu | 4 | default | internal | false | |
| service.app.memory | 8 | default | internal | false | |
| service.demo.timeout | 200 | default | internal | false | |
+----------------------+---------------------------------------------------------------------------------------------+---------+----------+--------+-------------+
Last modified 11mo ago
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