maropu commented on a change in pull request #32420:
URL: https://github.com/apache/spark/pull/32420#discussion_r624890341
##########
File path: sql/core/src/test/resources/tpcds-query-results/v1_4/q23a.sql.out
##########
@@ -3,4 +3,4 @@
-- !query schema
struct<sum(sales):decimal(28,2)>
-- !query output
-17030.91
+NULL
Review comment:
I've checked that the result is the same when using StringType instead
of CharType. It looks sf=1 is not enough to output valid rows, e.g., if sf=20,
this result will be;
```
213230904.79
```
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