Maryann Xue created SPARK-25505:
-----------------------------------
Summary: The output order of grouping columns in Pivot is
different from the input order
Key: SPARK-25505
URL: https://issues.apache.org/jira/browse/SPARK-25505
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.4.0
Reporter: Maryann Xue
For example,
{code}
SELECT * FROM (
SELECT course, earnings, "a" as a, "z" as z, "b" as b, "y" as y, "c" as c,
"x" as x, "d" as d, "w" as w
FROM courseSales
)
PIVOT (
sum(earnings)
FOR course IN ('dotNET', 'Java')
)
{code}
The output columns should be "a, z, b, y, c, x, d, w, ..." but now it is "a, b,
c, d, w, x, y, z, ..."
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