HHH-18368 Fix for older Informix

Author: VladoKuruc

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/InformixDialect.java

@@ -281,12 +281,15 @@ public void initializeFunctionRegistry(FunctionContributions functionContributio
 		functionFactory.stddev();
 		functionFactory.variance();
 		functionFactory.bitLength_pattern( "length(?1)*8" );
-		
+
 		if ( getVersion().isBefore( 12 ) ) {
-			functionContributions.getFunctionRegistry().register( "coalesce", new NvlCoalesceEmulation() );
+			functionContributions.getFunctionRegistry().register(
+					"coalesce",
+					new NvlCoalesceEmulation( SqlAstNodeRenderingMode.INLINE_ALL_PARAMETERS )
+			);
 		}
 		else {
-			functionFactory.coalesce(SqlAstNodeRenderingMode.INLINE_ALL_PARAMETERS);
+			functionFactory.coalesce( SqlAstNodeRenderingMode.INLINE_ALL_PARAMETERS );
 			functionFactory.locate_charindex();
 		}
 		functionContributions.getFunctionRegistry().register( "least", new CaseLeastGreatestEmulation( true ) );

hibernate-core/src/main/java/org/hibernate/dialect/function/NvlCoalesceEmulation.java

@@ -16,6 +16,7 @@
 import org.hibernate.query.sqm.produce.function.StandardFunctionReturnTypeResolvers;
 import org.hibernate.query.sqm.tree.SqmTypedNode;
 import org.hibernate.query.sqm.tree.expression.SqmExpression;
+import org.hibernate.sql.ast.SqlAstNodeRenderingMode;
 
 import java.util.List;
 
@@ -31,13 +32,20 @@
 public class NvlCoalesceEmulation
 		extends AbstractSqmFunctionDescriptor {
 
+	private final SqlAstNodeRenderingMode inferenceArgumentRenderingMode;
+
 	public NvlCoalesceEmulation() {
+		this( SqlAstNodeRenderingMode.DEFAULT );
+	}
+
+	public NvlCoalesceEmulation(SqlAstNodeRenderingMode inferenceArgumentRenderingMode) {
 		super(
 				"coalesce",
 				StandardArgumentsValidators.min( 2 ),
 				StandardFunctionReturnTypeResolvers.useFirstNonNull(),
 				StandardFunctionArgumentTypeResolvers.IMPLIED_RESULT_TYPE
 		);
+		this.inferenceArgumentRenderingMode = inferenceArgumentRenderingMode;
 	}
 
 	@Override
@@ -50,6 +58,7 @@ protected <T> SelfRenderingSqmFunction<T> generateSqmFunctionExpression(
 				queryEngine.getSqmFunctionRegistry()
 						.namedDescriptorBuilder("nvl")
 						.setExactArgumentCount(2)
+						.setArgumentRenderingMode( inferenceArgumentRenderingMode )
 						.descriptor();
 
 		int pos = arguments.size();