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BUG: table.sort_by().count() generates incorrect code #1180

cpcloud opened this Issue Oct 21, 2017 · 0 comments


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cpcloud commented Oct 21, 2017

In [1]: con = ibis.postgres.connect(database='ibis_testing')

In [2]: t = con.table('batting')

In [3]: print(t.sort_by(ibis.desc(t.playerID)).count().compile().compile())
SELECT count(%(count_1)s) AS count 
FROM batting AS t0 ORDER BY t0."playerID" DESC

This is incorrect, because ORDER BY in an aggregation is meaningless without a GROUP BY.

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