timsaucer opened a new pull request, #1167:
URL: https://github.com/apache/datafusion-python/pull/1167
# Which issue does this PR close?
None
# Rationale for this change
By design in a Jupyter notebook `display()` calls both `__repr__` and
`_repr_html_`. This currently causes `collect()` on DataFrames to occur twice,
which can lead to double the execution time during evaluation. This PR causes
collect to only happen once.
# What changes are included in this PR?
If we are in a jupyter notebook, `__repr__` will return an empty string.
Only `_repr_html_` will collect and display a formatted table. Users can still
use `df.show()` if they want the table view.
# Are there any user-facing changes?
None.
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