gci and gci -recurse have different kind of outputs - powershell

Question

I'm trying to make a filesystem inventory.
This works, it gives me the ower and ACL of each entry
Get-ChildItem \\Server\Share\* | Select-Object #{n='Path';e={ (Get-Item $_.PSPath).FullName }}, PSIsContainer, #{n='Owner';e={ (Get-Acl $_).Owner}}, #{n='Accesstostring';e={ (Get-Acl $_).Accesstostring}}
But using -Recurse gives me empty Owner and Accesstostring
Get-ChildItem \\Server\Share\ -Recurse | Select-Object #{n='Path';e={ (Get-Item $_.PSPath).FullName }}, PSIsContainer, #{n='Owner';e={ (Get-Acl $_).Owner}}, #{n='Accesstostring';e={ (Get-Acl $_).Accesstostring}}
Why does gci is sending something different alon the pipe ?
How can i fix this ?
(I don't want to make an array because that would not fit into memory)

Answer 1

They are different because one array contains a list of files, but in recurse it is an array of directory objects and each of the directory object contains a list of files.
The code below will do what you wanted. Please note that path needs to be in quotes if it contains spaces.
Get-ChildItem \\Server\Share\ -Recurse | Select-Object #{n='Path';e={ $_.FullName }}, PSIsContainer, #{n='Owner';e={ (Get-Acl $_.FullName).Owner}}, #{n='Accesstostring';e={ (Get-Acl $_.FullName).Accesstostring}}

Answer 2

Expanding on #Edjs-perkums answer, this calls Get-Acl once and expands two of its properties in a second Select-Object in the pipe. (Also reformatted into multiple lines for clarity, but it's a single pipeline.)
Get-ChildItem \\Server\Share\ -Recurse `
| Select-Object #{n='Path';e={ $_.FullName }},
#{n='ACL';e={ (Get-Acl $_.Fullname) }},
PSIsContainer `
| Select-Object Path, PSIsContainer,
#{n='Owner';e={ $_.ACL.Owner}},
#{n='Accesstostring';e={ $_.ACL.Accesstostring}}