[CALCITE-6140] Add percentile test on SqlParserTest

apache · Nov 28, 2023 · 855bf1f · 855bf1f
1 parent 578f44e
commit 855bf1f
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/testkit/src/main/java/org/apache/calcite/sql/parser/SqlParserTest.java b/testkit/src/main/java/org/apache/calcite/sql/parser/SqlParserTest.java
@@ -784,6 +784,13 @@ protected static SortedSet<String> keywords(@Nullable String dialect) {
         .fails("(?s)Encountered \"\\*\" at .*");
   }
 
+
+  @Test void testPercentile() {
+    sql("SELECT percentile(x, .5) within group (order by 3) from t")
+        .ok("SELECT `PERCENTILE`(`X`, 0.5) WITHIN GROUP (ORDER BY 3)\n"
+            + "FROM `T`");
+  }
+
   @Test void testPercentileCont() {
     sql("select percentile_cont(.5) within group (order by 3) from t")
         .ok("SELECT PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY 3)\n"
@@ -796,6 +803,13 @@ protected static SortedSet<String> keywords(@Nullable String dialect) {
             + "FROM `T`");
   }
 
+  @Test void testPercentileBigQuery() {
+    sql("select percentile(x, .5) over() from unnest(array[1,2,3,4]) as x")
+        .withDialect(BIG_QUERY)
+        .ok("SELECT (percentile(x, 0.5) OVER ())\n"
+            + "FROM UNNEST((ARRAY[1, 2, 3, 4])) AS x");
+  }
+
   /** Tests BigQuery's variant of PERCENTILE_CONT, which uses OVER rather than
    * WITHIN GROUP, and allows RESPECT/IGNORE NULLS inside the parentheses. */
   @Test void testPercentileContBigQuery() {