Option to remember metadata for tools

[JonathonCavalieri]

In short:
Add an option to cache the metadata for a particular tool so that it doesn't forget when using tool that have dynamic metadata such as batch macros or alteryx metadata engine can't resolve such as python tool.

Longer explanation:

The Problem:

One of the issues I often encounter when making dynamic workflows or ones that require calling external services is that Alteryx often forgets the metadata of what columns to expect. This causes the workflow to forget configuration of downstream tools when a workflow is first opened or when the metadata engine refreshes. There is currently the option to disable the metadata engine from automatically refreshing but this isn't a good option because you miss out on much of the value it brings.

Some of the common tools where I encounter this issue:

• Json parse
• Batch macros
• Python tool
• Regex parsing to rows

Solution:

Instead could we add an option to cache the metadata for a particular tool, this would save the metadata from the last time the workflow ran to within the workflows XML so that it persists when closed and reopened. Then when the metadata engine runs when it gets to this tool instead of resolving the metadata from the tool it instead uses the saved version in the XML. Obviously when it actually runs it would ignore this and any errors would still occur.

This could be an option in navigation pane of each tool. Mockup below:

This would make developing dynamic workflows far easier and resolve issues of configuration being lost when the metadata changes and alteryx forgets the options.