Merge branch 'fix-consistency-col-perf-min' into 'master'

Merged Yannick requested to merge cherry-pick-de0996b5 into release/0.16

fix perf bottle neck in function _get_curve_name_and_column_count

See issue #47 (closed) See merge request !595 (merged)

(cherry picked from commit de0996b5)

7b4a5f40 fix perf bottle neck in function _get_curve_name_and_column_count

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