Is your feature request related to a problem or challenge? Please describe what you are trying to do.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
(This section helps Arrow developers understand the context and why for this feature, in addition to the what)
I'd like to be able to assign a name to previously constructed logical plan.
Describe the solution you'd like
A clear and concise description of what you want to happen.
let mut ctx = ExecutionContext::new(...);
let table = ctx.table("t");
let df = table.filter(...);
ctx.register_table("filtered_t", something_corresponding_to_df);
Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
I haven't considered any alternatives.
Additional context
Add any other context or screenshots about the feature request here.
I'll have a PR up shortly for this.