Avoid unnecessary allocations

[simonvandel]

No description provided.

[codecov]

Codecov Report

Merging #559 (29d8bb4) into main (5776c81) will increase coverage by 0.00%.
The diff coverage is 40.00%.

@@           Coverage Diff           @@
##             main     #559   +/-   ##
=======================================
  Coverage   78.92%   78.93%           
=======================================
  Files         382      382           
  Lines       24275    24289   +14     
=======================================
+ Hits        19160    19172   +12     
- Misses       5115     5117    +2     

Impacted Files	Coverage Δ
src/ffi/schema.rs	65.15% <25.00%> (ø)
src/array/display.rs	50.37% <100.00%> (-0.73%)	⬇️
src/compute/arithmetics/time.rs	44.89% <0.00%> (-2.05%)	⬇️
src/datatypes/mod.rs	77.33% <0.00%> (-0.28%)	⬇️
src/array/union/mod.rs	79.41% <0.00%> (-0.20%)	⬇️
tests/it/array/mod.rs	100.00% <0.00%> (ø)
src/io/json_integration/schema.rs	46.05% <0.00%> (ø)
src/io/ipc/read/array/union.rs	76.74% <0.00%> (+1.74%)	⬆️

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