siddharthteotia commented on code in PR #10120:
URL: https://github.com/apache/pinot/pull/10120#discussion_r1073980628
##########
pinot-query-runtime/src/test/resources/queries/Skew.json:
##########
@@ -0,0 +1,79 @@
+{
+ "skew": {
+ "tables": {
+ "tbl": {
+ "schema": [
+ {"name": "groupingCol", "type": "STRING"},
+ {"name": "partitionCol", "type": "STRING"},
+ {"name": "val", "type": "INT"}
+ ],
+ "inputs": [
+ ["a", "key1", 1],
+ ["a", "key2", 2],
+ ["a", "key3", 3],
+ ["a", "key1", 4],
+ ["a", "key2", 4],
+ ["a", "key3", 4],
+ ["a", "key1", 7],
+ ["a", "key2", 9],
+ ["b", "key3", 1],
+ ["b", "key1", 2],
+ ["b", "key2", 3],
+ ["b", "key3", 4],
+ ["b", "key1", 4],
+ ["b", "key2", 4],
+ ["b", "key3", 7],
+ ["b", "key1", 9]
+ ],
+ "partitionColumns": [
+ "partitionCol"
+ ]
+ },
+ "tbl2": {
+ "schema": [
+ {"name": "groupingCol", "type": "STRING"},
+ {"name": "partitionCol", "type": "STRING"},
+ {"name": "val", "type": "INT"}
+ ],
+ "inputs": [
+ ["a", "key1", 1],
+ ["a", "key2", 2],
+ ["a", "key3", 3],
+ ["a", "key1", 4],
+ ["a", "key2", 4],
+ ["a", "key3", 4],
+ ["a", "key1", 7],
+ ["a", "key2", 9],
+ ["b", "key3", 1],
+ ["b", "key1", 2],
+ ["b", "key2", 3],
+ ["b", "key3", 4],
+ ["b", "key1", 4],
+ ["b", "key2", 4],
+ ["b", "key3", 7],
+ ["b", "key1", 9]
+ ],
+ "partitionColumns": [
+ "partitionCol"
+ ]
+ }
+ },
+ "queries": [
+ {
+ "description": "skew for int column",
+ "sql": "SELECT groupingCol, SKEWNESS(val), KURTOSIS(val) FROM {tbl}
GROUP BY groupingCol",
+ "outputs": [
+ ["a", 0.8647536091225356, 0.3561662049861511],
+ ["b", 0.8647536091225356, 0.3561662049861511]
+ ]
+ },
+ {
+ "sql": "SELECT t1.groupingCol, SKEWNESS(t1.val + t2.val),
KURTOSIS(t1.val + t2.val) FROM {tbl} AS t1 LEFT JOIN {tbl2} AS t2 USING
(partitionCol) GROUP BY t1.groupingCol",
Review Comment:
yes, follow-up is fine
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