Tortar commented on issue #492:
URL: https://github.com/apache/arrow-julia/issues/492#issuecomment-1773931920
ohh ok got it, the dataframe doesn't copy the content of the arrow table,
just steal the reference, if one tries:
```julia
julia> deleteat!(data_saved, 2)
ERROR: ArgumentError: `Arrow.Primitive{Int64, Vector{Int64}}` does not
support `deleteat!`; arrow data is by nature immutable
Stacktrace:
[1] deleteat!(x::Arrow.Primitive{Int64, Vector{Int64}}, inds::Vector{Int64})
@ Arrow
C:\Users\bob\.julia\packages\Arrow\R2Rvz\src\arraytypes\arraytypes.jl:32
[2] deleteat!(A::SentinelArrays.ChainedVector{Int64, Arrow.Primitive{Int64,
Vector{Int64}}}, inds::Vector{Int64})
@ SentinelArrays
C:\Users\bob\.julia\packages\SentinelArrays\cav7N\src\chainedvector.jl:560
[3] _deleteat!_helper(df::DataFrame, drop::Vector{Int64})
@ DataFrames
C:\Users\bob\.julia\packages\DataFrames\58MUJ\src\dataframe\dataframe.jl:919
[4] deleteat!(df::DataFrame, inds::Int64)
@ DataFrames
C:\Users\bob\.julia\packages\DataFrames\58MUJ\src\dataframe\dataframe.jl:861
[5] top-level scope
@ REPL[33]:1
```
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