Sentinel query KQL with variables

Hello!
I need to use variables as parameters of functions in Sentinel Logs. I have:

• let t = "Syslog";
• let name = "my-Sentinel";
• let id = "abc123";

Well, if do this, it works fine:

• table("Syslog")
• table(t)
• workspace("my-Sentinel").table("Syslog")
• workspace("my-Sentinel").Syslog

But i need to work this:

• worskpace(name).table(t)
• or
  • let x=strcat("workspace('", name, "')");
  • let y=strcat("table('", t, "')");
  • x.y

In general seems that the function workspace() doesent work with a variable as parameter, but the function table() if alone it works:

• workspace("my-Sentinel") -> YES
• workspace(n) -> NO
• table("Syslog") -> OK
• table(t) -> OK

Any idea how to make it works? In particulary to do this: workspace(name).table(t)

Thanks!!!