sql

lib/sql/test/CDB_QuantileBinsTest.sql

@@ -0,0 +1,17 @@
+WITH data AS (
+    SELECT array_agg(x::numeric) AS s
+    FROM generate_series(0, 99) AS x
+    ) 
+SELECT unnest(CDB_QuantileBins(s, 10))
+  FROM data;
+
+WITH data_nulls AS (
+    SELECT array_agg(x::numeric) AS s
+      FROM (
+        SELECT x FROM generate_series(0, 99) AS x
+        UNION ALL
+        SELECT null AS x FROM generate_series(1, 10) AS x
+        ) _wrap
+    )
+SELECT unnest(CDB_QuantileBins(s, 10))
+  FROM data_nulls;