Maria has a median() function

hibernate · Oct 7, 2022 · 2a9f6da · 2a9f6da
1 parent bf7a51c
commit 2a9f6da
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diff --git a/hibernate-core/src/main/java/org/hibernate/dialect/MariaDBDialect.java b/hibernate-core/src/main/java/org/hibernate/dialect/MariaDBDialect.java
@@ -33,6 +33,7 @@
 import org.hibernate.type.descriptor.sql.internal.DdlTypeImpl;
 import org.hibernate.type.descriptor.sql.spi.DdlTypeRegistry;
 
+import static org.hibernate.query.sqm.produce.function.FunctionParameterType.NUMERIC;
 import static org.hibernate.type.SqlTypes.OTHER;
 import static org.hibernate.type.SqlTypes.UUID;
 
@@ -87,6 +88,11 @@ public void initializeFunctionRegistry(QueryEngine queryEngine) {
 						.resolve( StandardBasicTypes.BOOLEAN )
 		);
 		commonFunctionFactory.inverseDistributionOrderedSetAggregates_windowEmulation();
+		queryEngine.getSqmFunctionRegistry().patternDescriptorBuilder( "median", "median(?1) over ()" )
+				.setInvariantType( queryEngine.getTypeConfiguration().getBasicTypeRegistry().resolve( StandardBasicTypes.DOUBLE ) )
+				.setExactArgumentCount( 1 )
+				.setParameterTypes(NUMERIC)
+				.register();
 	}
 
 	@Override

diff --git a/hibernate-testing/src/main/java/org/hibernate/testing/orm/junit/DialectFeatureChecks.java b/hibernate-testing/src/main/java/org/hibernate/testing/orm/junit/DialectFeatureChecks.java
@@ -470,7 +470,8 @@ public static class SupportsMedian implements DialectFeatureCheck {
 		public boolean apply(Dialect dialect) {
 			return !( dialect instanceof MySQLDialect
 					|| dialect instanceof SybaseDialect
-					|| dialect instanceof DerbyDialect );
+					|| dialect instanceof DerbyDialect )
+				|| dialect instanceof MariaDBDialect;
 		}
 	}
 }