cryptoe commented on code in PR #16679:
URL: https://github.com/apache/druid/pull/16679#discussion_r1669795346
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extensions-core/datasketches/src/test/java/org/apache/druid/query/aggregation/datasketches/quantiles/sql/DoublesSketchSqlAggregatorTest.java:
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@@ -263,6 +269,143 @@ public void testQuantileOnComplexColumn()
);
}
+ @Test
+ public void testSubqueryWithNestedGroupBy()
+ {
+ final List<Object[]> expectedResults = ImmutableList.of(
+ new Object[]{946684800000L, "", 1L, "val1"},
+ new Object[]{946684800000L, "1", 1L, "val1"},
+ new Object[]{946684800000L, "10.1", 1L, "val1"},
+ new Object[]{946684800000L, "2", 1L, "val1"},
+ new Object[]{946684800000L, "abc", 1L, "val1"},
+ new Object[]{946684800000L, "def", 1L, "val1"}
+ );
+
+ testQuery(
+ "SELECT\n"
+ + " MILLIS_TO_TIMESTAMP(946684800000) AS __time,\n"
+ + " alias.\"user\",\n"
+ + " alias.days,\n"
+ + " (CASE WHEN alias.days < quantiles.first_quartile THEN 'val2' \n"
+ + " WHEN alias.days >= quantiles.first_quartile AND alias.days <
quantiles.third_quartile THEN 'val3' \n"
+ + " WHEN alias.days >= quantiles.third_quartile THEN 'val1' END) AS
val4\n"
+ + "FROM (\n"
+ + " SELECT\n"
+ + " APPROX_QUANTILE_DS(alias.days, 0.25) AS first_quartile,\n"
+ + " APPROX_QUANTILE_DS(alias.days, 0.75) AS third_quartile\n"
+ + " FROM (\n"
+ + " SELECT\n"
+ + " dim1 \"user\",\n"
+ + " COUNT(DISTINCT __time) AS days\n"
+ + " FROM \"foo\"\n"
+ + " GROUP BY 1\n"
+ + " ) AS alias\n"
+ + ") AS quantiles, (\n"
+ + " SELECT\n"
+ + " dim1 \"user\",\n"
+ + " COUNT(DISTINCT __time) AS days\n"
+ + " FROM \"foo\"\n"
+ + " GROUP BY 1\n"
+ + ") AS alias\n",
+ ImmutableMap.<String, Object>builder()
+ .putAll(QUERY_CONTEXT_DEFAULT)
+ .put(QueryContexts.MAX_SUBQUERY_BYTES_KEY, "100000")
+ // Disallows the fallback to row based limiting
+ .put(QueryContexts.MAX_SUBQUERY_ROWS_KEY, "10")
Review Comment:
+1 for the test case. Ideally we would want a similar test in processing
module. Is that possible ? Maybe use a test aggregator ?
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