eliteloser/mergecsv

Svendsen Tech's Merge-Csv is a PowerShell function for merging CSV files and/or custom PowerShell objects based on one or more shared ID properties

mergecsv's Issues

-AllowDuplicates doesn't appear to work with multiple ID properties

Will investigate. Brain hurts a bit more than usually.

No support for AliasProperty or column mapping

In the case where you have two objects with a column of matching data that has different name, it doesn't appear you can merge them. Two options would be to support a mapping parameter where you indicate IP on one maps to IPAddress on another, for example. The other would be to support alias properties that were added via Add-Member, for example:
$NoIpAddressColumn | Add-Member -MemberType AliasProperty -Name IPAddress -Value IP
I think the latter may be able to be accomplished by simply adding it to all your get-member calls:
Get-Member -MemberType NoteProperty,AliasProperty