SNOW-1105953 Fix Local Testing implementation of count_distinct #1304
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Fixes SNOW-1105953: count_distinct mock in local testing does not work correctly #1268 /SNOW-1105953
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Issue: The previous implementation does not work with pandas dataframe's row indexing. On Line 224,
dict_data
could already have a row indexing that's not a consecutive integer sequence starting from 0, sotemp_table
is not initialized correctly.PR: This PR implements
count_distinct
by merging all incoming columns into a column of tuples, then applyingpandas.DataFrame.nunique
.