diff --git a/jOOQ/src/main/java/org/jooq/impl/ArrayTable.java b/jOOQ/src/main/java/org/jooq/impl/ArrayTable.java
index 4b456ab9a3..5edc425659 100644
--- a/jOOQ/src/main/java/org/jooq/impl/ArrayTable.java
+++ b/jOOQ/src/main/java/org/jooq/impl/ArrayTable.java
@@ -116,15 +116,6 @@ final class ArrayTable extends AbstractTable<Record> implements UNotYetImplement
         this.field = init(arrayType, this.alias, this.fieldAliases[0]);
     }
 
-    @SuppressWarnings("removal")
-    static final DataType<?> componentDataType(Object[] array) {
-        if (!isEmpty(array) && array[0] instanceof Field<?> f) {
-            return f.getDataType();
-        }
-        else
-            return DSL.getDataType(array.getClass().getComponentType());
-    }
-
     static final FieldsImpl<Record> init(Class<?> arrayType, Name alias, Name fieldAlias) {
 
         // [#1114] [#7863] VARRAY/TABLE of OBJECT have more than one field
diff --git a/jOOQ/src/main/java/org/jooq/impl/ArrayTableEmulation.java b/jOOQ/src/main/java/org/jooq/impl/ArrayTableEmulation.java
index 328a0460e2..fed5641350 100644
--- a/jOOQ/src/main/java/org/jooq/impl/ArrayTableEmulation.java
+++ b/jOOQ/src/main/java/org/jooq/impl/ArrayTableEmulation.java
@@ -43,6 +43,7 @@ import static org.jooq.impl.DSL.one;
 import static org.jooq.impl.DSL.using;
 import static org.jooq.impl.Names.N_ARRAY_TABLE;
 import static org.jooq.impl.Names.N_COLUMN_VALUE;
+import static org.jooq.impl.Tools.componentDataType;
 
 import org.jooq.Configuration;
 import org.jooq.Context;
@@ -83,7 +84,7 @@ final class ArrayTableEmulation extends AbstractTable<Record> implements UTransi
         this.array = array;
         this.alias = alias;
         this.fieldAlias = fieldAlias == null ? N_COLUMN_VALUE : fieldAlias;
-        this.field = new FieldsImpl<>(DSL.field(name(alias.last(), this.fieldAlias.last()), ArrayTable.componentDataType(array)));
+        this.field = new FieldsImpl<>(DSL.field(name(alias.last(), this.fieldAlias.last()), componentDataType(array)));
     }
 
     @Override
diff --git a/jOOQ/src/main/java/org/jooq/impl/DSL.java b/jOOQ/src/main/java/org/jooq/impl/DSL.java
index edba59d32e..bf7e8f0e48 100644
--- a/jOOQ/src/main/java/org/jooq/impl/DSL.java
+++ b/jOOQ/src/main/java/org/jooq/impl/DSL.java
@@ -125,6 +125,7 @@ import static org.jooq.impl.Tools.combine;
 import static org.jooq.impl.Tools.configuration;
 import static org.jooq.impl.Tools.isEmpty;
 import static org.jooq.impl.Tools.map;
+import static org.jooq.impl.Tools.mostSpecificArray;
 import static org.jooq.tools.StringUtils.isEmpty;
 
 import java.math.BigDecimal;
@@ -11261,8 +11262,12 @@ public class DSL {
     @NotNull
     @Support
     public static Table<?> unnest(Object[] array) {
-        if (!isEmpty(array) && array[0] instanceof Field)
+        boolean notEmpty = !isEmpty(array);
+
+        if (notEmpty && array[0] instanceof Field)
             return new ArrayOfValues(Tools.fieldsArray(array));
+        else if (notEmpty && array.getClass() == Object[].class)
+            return unnest0(val(mostSpecificArray(array)));
         else
             return unnest0(val(array));
     }
diff --git a/jOOQ/src/main/java/org/jooq/impl/Tools.java b/jOOQ/src/main/java/org/jooq/impl/Tools.java
index 4b69a6dce1..0166987444 100644
--- a/jOOQ/src/main/java/org/jooq/impl/Tools.java
+++ b/jOOQ/src/main/java/org/jooq/impl/Tools.java
@@ -7262,4 +7262,31 @@ final class Tools {
         return !FALSE.equals(ctx.settings().isRenderVariablesInDerivedTablesForEmulations())
             && !NO_SUPPORT_CORRELATED_DERIVED_TABLE.contains(ctx.dialect());
     }
+
+    @SuppressWarnings("removal")
+    static final DataType<?> componentDataType(Object[] array) {
+        if (!isEmpty(array) && array[0] instanceof Field<?> f) {
+            return f.getDataType();
+        }
+        else
+            return DSL.getDataType(array.getClass().getComponentType());
+    }
+
+    static final Object[] mostSpecificArray(Object[] array) {
+        if (isEmpty(array))
+            return array;
+
+        Class<?> type = null;
+        for (Object o : array)
+            if (o != null)
+                if (type == null)
+                    type = o.getClass();
+                else if (type != o.getClass())
+                    return array;
+
+        if (type == null)
+            return array;
+        else
+            return Convert.convertArray(array, type);
+    }
 }