Skip exponential histogram coalesce tests in release builds (elastic#138272)

Author: JonasKunz

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/scalar/nulls/CoalesceTests.java

@@ -26,6 +26,7 @@
 import org.elasticsearch.xpack.esql.core.expression.FoldContext;
 import org.elasticsearch.xpack.esql.core.expression.Literal;
 import org.elasticsearch.xpack.esql.core.expression.Nullability;
+import org.elasticsearch.xpack.esql.core.plugin.EsqlCorePlugin;
 import org.elasticsearch.xpack.esql.core.tree.Source;
 import org.elasticsearch.xpack.esql.core.type.DataType;
 import org.elasticsearch.xpack.esql.core.type.EsField;
@@ -121,20 +122,21 @@ public static Iterable<Object[]> parameters() {
                 equalTo(firstDate == null ? secondDate : firstDate)
             );
         }));
-        noNullsSuppliers.add(new TestCaseSupplier(List.of(DataType.EXPONENTIAL_HISTOGRAM, DataType.EXPONENTIAL_HISTOGRAM), () -> {
-            ExponentialHistogram firstHisto = randomBoolean() ? null : EsqlTestUtils.randomExponentialHistogram();
-            ExponentialHistogram secondHisto = EsqlTestUtils.randomExponentialHistogram();
-            return new TestCaseSupplier.TestCase(
-                List.of(
-                    new TestCaseSupplier.TypedData(firstHisto, DataType.EXPONENTIAL_HISTOGRAM, "first"),
-                    new TestCaseSupplier.TypedData(secondHisto, DataType.EXPONENTIAL_HISTOGRAM, "second")
-                ),
-                "CoalesceExponentialHistogramEagerEvaluator[values=[Attribute[channel=0], Attribute[channel=1]]]",
-                DataType.EXPONENTIAL_HISTOGRAM,
-                equalTo(firstHisto == null ? secondHisto : firstHisto)
-            );
-        }));
-
+        if (EsqlCorePlugin.EXPONENTIAL_HISTOGRAM_FEATURE_FLAG.isEnabled()) {
+            noNullsSuppliers.add(new TestCaseSupplier(List.of(DataType.EXPONENTIAL_HISTOGRAM, DataType.EXPONENTIAL_HISTOGRAM), () -> {
+                ExponentialHistogram firstHisto = randomBoolean() ? null : EsqlTestUtils.randomExponentialHistogram();
+                ExponentialHistogram secondHisto = EsqlTestUtils.randomExponentialHistogram();
+                return new TestCaseSupplier.TestCase(
+                    List.of(
+                        new TestCaseSupplier.TypedData(firstHisto, DataType.EXPONENTIAL_HISTOGRAM, "first"),
+                        new TestCaseSupplier.TypedData(secondHisto, DataType.EXPONENTIAL_HISTOGRAM, "second")
+                    ),
+                    "CoalesceExponentialHistogramEagerEvaluator[values=[Attribute[channel=0], Attribute[channel=1]]]",
+                    DataType.EXPONENTIAL_HISTOGRAM,
+                    equalTo(firstHisto == null ? secondHisto : firstHisto)
+                );
+            }));
+        }
         List<TestCaseSupplier> suppliers = new ArrayList<>(noNullsSuppliers);
         for (TestCaseSupplier s : noNullsSuppliers) {
             for (int nullUpTo = 1; nullUpTo < s.types().size(); nullUpTo++) {