diff --git a/src/Database/Schema/Blueprint.php b/src/Database/Schema/Blueprint.php
index e2a83ed..bfe2ce3 100644
--- a/src/Database/Schema/Blueprint.php
+++ b/src/Database/Schema/Blueprint.php
@@ -7,16 +7,16 @@
 class Blueprint extends IlluminateBlueprint
 {
     /**
-     * Column key one for creating a composite key for a range partitioned table.
+     * Column key one for creating a composite key for a range partitioned table. Use NULL if table has no primary key
      *
-     * @var string
+     * @var string|null
      */
     public $pkCompositeOne;
 
     /**
-     * Column key two for creating a composite key for range partitioned table.
+     * Column key two for creating a composite key for range partitioned table. Use NULL if table has no primary key
      *
-     * @var string
+     * @var string|null
      */
     public $pkCompositeTwo;
 
diff --git a/src/Database/Schema/Builder.php b/src/Database/Schema/Builder.php
index 9eda967..9821bf5 100755
--- a/src/Database/Schema/Builder.php
+++ b/src/Database/Schema/Builder.php
@@ -23,13 +23,13 @@ public function __construct(Connection $connection)
      *
      * @param string $table
      * @param Closure $callback
-     * @param string $pkCompositeOne
-     * @param string $pkCompositeTwo
+     * @param string|null $pkCompositeOne
+     * @param string|null $pkCompositeTwo
      * @param string $rangeKey
      * @return void
      * @throws BindingResolutionException
      */
-    public function createRangePartitioned(string $table, Closure $callback, string $pkCompositeOne, string $pkCompositeTwo, string $rangeKey)
+    public function createRangePartitioned(string $table, Closure $callback, ?string $pkCompositeOne = null, ?string $pkCompositeTwo = null, string $rangeKey)
     {
         $this->build(tap($this->createBlueprint($table), function ($blueprint) use ($callback, $pkCompositeOne, $pkCompositeTwo, $rangeKey) {
             $blueprint->createRangePartitioned();
diff --git a/src/Database/Schema/Grammars/PostgresGrammar.php b/src/Database/Schema/Grammars/PostgresGrammar.php
index c72b08b..497d7ca 100755
--- a/src/Database/Schema/Grammars/PostgresGrammar.php
+++ b/src/Database/Schema/Grammars/PostgresGrammar.php
@@ -17,11 +17,17 @@ class PostgresGrammar extends IlluminatePostgresGrammar
      */
     public function compileCreateRangePartitioned(Blueprint $blueprint, Fluent $command)
     {
+        $columns = implode(', ', $this->getColumns($blueprint));
+
+        if ($primaryKey = $this->shouldUsePrimaryKey($blueprint)) {
+            $columns = sprintf('%s, %s', $columns, sprintf('primary key (%s, %s)', $blueprint->pkCompositeOne, $blueprint->pkCompositeTwo));
+        }
+
         return array_values(array_filter(array_merge([sprintf('create table %s (%s) partition by range (%s)',
             $this->wrapTable($blueprint),
-            sprintf('%s, %s', implode(', ', $this->getColumns($blueprint)), sprintf('primary key (%s, %s)', $blueprint->pkCompositeOne, $blueprint->pkCompositeTwo)),
+            $columns,
             $blueprint->rangeKey
-        )], $this->compileAutoIncrementStartingValues($blueprint))));
+        )], $primaryKey ? $this->compileAutoIncrementStartingValues($blueprint, $command) : [])));
     }
 
     /**
@@ -39,7 +45,7 @@ public function compileCreateRangePartition(Blueprint $blueprint, Fluent $comman
             str_replace("\"", "", $this->wrapTable($blueprint)),
             $blueprint->startDate,
             $blueprint->endDate
-        )], $this->compileAutoIncrementStartingValues($blueprint))));
+        )], $this->shouldUsePrimaryKey($blueprint) ? $this->compileAutoIncrementStartingValues($blueprint, $command) : [])));
     }
 
     /**
@@ -117,11 +123,17 @@ public function compileAttachListPartition(Blueprint $blueprint, Fluent $command
      */
     public function compileCreateHashPartitioned(Blueprint $blueprint, Fluent $command)
     {
+        $columns = implode(', ', $this->getColumns($blueprint));
+
+        if ($primaryKey = $this->shouldUsePrimaryKey($blueprint)) {
+            $columns = sprintf('%s, %s', $columns, sprintf('primary key (%s, %s)', $blueprint->pkCompositeOne, $blueprint->pkCompositeTwo));
+        }
+
         return array_values(array_filter(array_merge([sprintf('create table %s (%s) partition by hash(%s)',
             $this->wrapTable($blueprint),
-            sprintf('%s, %s', implode(', ', $this->getColumns($blueprint)), sprintf('primary key (%s, %s)', $blueprint->pkCompositeOne, $blueprint->pkCompositeTwo)),
+            $columns,
             $blueprint->hashPartitionKey
-        )], $this->compileAutoIncrementStartingValues($blueprint))));
+        )], $primaryKey ? $this->compileAutoIncrementStartingValues($blueprint, $command) : [])));
     }
 
     /**
@@ -215,4 +227,15 @@ public function compileDetachPartition(Blueprint $blueprint, Fluent $command)
             $blueprint->partitionTableName
         );
     }
+
+    /**
+     * Does the table have a primary key
+     *
+     * @param Blueprint $blueprint
+     * @return bool
+     */
+    public function shouldUsePrimaryKey(Blueprint $blueprint)
+    {
+        return $blueprint->pkCompositeOne && $blueprint->pkCompositeTwo;
+    }
 }
diff --git a/src/Support/Facades/Schema.php b/src/Support/Facades/Schema.php
index 32a11b6..577bf07 100755
--- a/src/Support/Facades/Schema.php
+++ b/src/Support/Facades/Schema.php
@@ -8,7 +8,7 @@
 
 /**
  * Range partitioning related methods.
- * @method static  createRangePartitioned(string $table, \Closure $callback, string $pkCompositeOne, string $pkCompositeTwo, string $rangeKey)
+ * @method static  createRangePartitioned(string $table, \Closure $callback, ?string $pkCompositeOne = null, ?string $pkCompositeTwo = null, string $rangeKey)
  * @method static  createRangePartition(string $table, \Closure $callback, string $suffixForPartition, string $startDate, string $endDate)
  * @method static  attachRangePartition(string $table, \Closure $callback, string $partitionTableName, string $startDate, string $endDate)
  * @method static  getAllRangePartitionedTables()