Name to lowercase in renameDuplicateColumnHeaders #1197
Merged
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renameDuplicateColumnHeaders when allowDuplicateColumnNames is true is case sensitive which causes validateColumn(final Column<?> newColumn) to fail and throw IllegalArgumentException.
What was changed
Used toLowerCase while using HashMap.
Also thought of using treeMap, but get() in treeMap has timecomplexity of O(log(n))
Did you add a unit test?
No