cloud-fan commented on code in PR #48748:
URL: https://github.com/apache/spark/pull/48748#discussion_r1843594523
##########
sql/core/src/test/resources/sql-tests/results/listagg.sql.out:
##########
@@ -0,0 +1,436 @@
+-- Automatically generated by SQLQueryTestSuite
+-- !query
+CREATE TEMP VIEW df AS
+SELECT * FROM (VALUES ('a', 'b'), ('a', 'c'), ('b', 'c'), ('b', 'd'), (NULL,
NULL)) AS t(a, b)
+-- !query schema
+struct<>
+-- !query output
+
+
+
+-- !query
+CREATE TEMP VIEW df2 AS
+SELECT * FROM (VALUES (1, true), (2, false), (3, false)) AS t(a, b)
+-- !query schema
+struct<>
+-- !query output
+
+
+
+-- !query
+SELECT listagg(b) FROM df GROUP BY a
+-- !query schema
+struct<listagg(b, NULL):string>
+-- !query output
+NULL
+bc
+cd
+
+
+-- !query
+SELECT string_agg(b) FROM df GROUP BY a
+-- !query schema
+struct<string_agg(b, NULL):string>
+-- !query output
+NULL
+bc
+cd
+
+
+-- !query
+SELECT listagg(b, NULL) FROM df GROUP BY a
+-- !query schema
+struct<listagg(b, NULL):string>
+-- !query output
+NULL
+bc
+cd
+
+
+-- !query
+SELECT listagg(b) FROM df WHERE 1 != 1
+-- !query schema
+struct<listagg(b, NULL):string>
+-- !query output
+NULL
+
+
+-- !query
+SELECT listagg(b, '|') FROM df GROUP BY a
+-- !query schema
+struct<listagg(b, |):string>
+-- !query output
+NULL
+b|c
+c|d
+
+
+-- !query
+SELECT listagg(a) FROM df
+-- !query schema
+struct<listagg(a, NULL):string>
+-- !query output
+aabb
+
+
+-- !query
+SELECT listagg(DISTINCT a) FROM df
+-- !query schema
+struct<listagg(DISTINCT a, NULL):string>
+-- !query output
+ab
+
+
+-- !query
+SELECT listagg(a) WITHIN GROUP (ORDER BY a) FROM df
+-- !query schema
+struct<listagg(a, NULL) WITHIN GROUP (ORDER BY a ASC NULLS FIRST):string>
+-- !query output
+aabb
+
+
+-- !query
+SELECT listagg(a) WITHIN GROUP (ORDER BY a DESC) FROM df
+-- !query schema
+struct<listagg(a, NULL) WITHIN GROUP (ORDER BY a DESC NULLS LAST):string>
+-- !query output
+bbaa
+
+
+-- !query
+SELECT listagg(a) WITHIN GROUP (ORDER BY a DESC) OVER (PARTITION BY b) FROM df
+-- !query schema
+struct<listagg(a, NULL) WITHIN GROUP (ORDER BY a DESC NULLS LAST) OVER
(PARTITION BY b ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED
FOLLOWING):string>
+-- !query output
+NULL
+a
+b
+ba
+ba
+
+
+-- !query
+SELECT listagg(a) WITHIN GROUP (ORDER BY b) FROM df
+-- !query schema
+struct<listagg(a, NULL) WITHIN GROUP (ORDER BY b ASC NULLS FIRST):string>
+-- !query output
+aabb
+
+
+-- !query
+SELECT listagg(a) WITHIN GROUP (ORDER BY b DESC) FROM df
+-- !query schema
+struct<listagg(a, NULL) WITHIN GROUP (ORDER BY b DESC NULLS LAST):string>
+-- !query output
+baba
+
+
+-- !query
+SELECT listagg(a, '|') WITHIN GROUP (ORDER BY b DESC) FROM df
+-- !query schema
+struct<listagg(a, |) WITHIN GROUP (ORDER BY b DESC NULLS LAST):string>
+-- !query output
+b|a|b|a
+
+
+-- !query
+SELECT listagg(a) WITHIN GROUP (ORDER BY b DESC, a ASC) FROM df
+-- !query schema
+struct<listagg(a, NULL) WITHIN GROUP (ORDER BY b DESC NULLS LAST, a ASC NULLS
FIRST):string>
+-- !query output
+baba
+
+
+-- !query
+SELECT listagg(a) WITHIN GROUP (ORDER BY b DESC, a DESC) FROM df
+-- !query schema
+struct<listagg(a, NULL) WITHIN GROUP (ORDER BY b DESC NULLS LAST, a DESC NULLS
LAST):string>
+-- !query output
+bbaa
+
+
+-- !query
+SELECT listagg(c1) FROM (VALUES (X'DEAD'), (X'BEEF')) AS t(c1)
+-- !query schema
+struct<listagg(c1, NULL):binary>
+-- !query output
+ޭ��
+
+
+-- !query
+SELECT listagg(c1, NULL) FROM (VALUES (X'DEAD'), (X'BEEF')) AS t(c1)
+-- !query schema
+struct<listagg(c1, NULL):binary>
+-- !query output
+ޭ��
+
+
+-- !query
+SELECT listagg(c1, X'42') FROM (VALUES (X'DEAD'), (X'BEEF')) AS t(c1)
+-- !query schema
+struct<listagg(c1, X'42'):binary>
+-- !query output
+ޭB��
+
+
+-- !query
+SELECT listagg(a), listagg(b, ',') FROM df2
+-- !query schema
+struct<listagg(a, NULL):string,listagg(b, ,):string>
+-- !query output
+123 true,false,false
+
+
+-- !query
+SELECT listagg(c1) FROM (VALUES (ARRAY['a', 'b'])) AS t(c1)
+-- !query schema
+struct<>
+-- !query output
+org.apache.spark.sql.catalyst.parser.ParseException
+{
+ "errorClass" : "PARSE_SYNTAX_ERROR",
Review Comment:
what's the point of this test?
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