diff --git a/generated/functionsList.php b/generated/functionsList.php
index 7a195dd4..e030273a 100644
--- a/generated/functionsList.php
+++ b/generated/functionsList.php
@@ -710,6 +710,7 @@
     'pg_result_error_field',
     'pg_result_seek',
     'pg_select',
+    'pg_set_chunked_rows_size',
     'pg_socket',
     'pg_trace',
     'pg_update',
diff --git a/generated/pgsql.php b/generated/pgsql.php
index 502ed781..346519fb 100644
--- a/generated/pgsql.php
+++ b/generated/pgsql.php
@@ -1267,6 +1267,24 @@ function pg_select($connection, string $table_name, array $conditions, int $flag
 }
 
 
+/**
+ *
+ *
+ * @param \PgSql\Connection $connection An PgSql\Connection instance.
+ * @param int $size
+ * @throws PgsqlException
+ *
+ */
+function pg_set_chunked_rows_size(\PgSql\Connection $connection, int $size): void
+{
+    error_clear_last();
+    $safeResult = \pg_set_chunked_rows_size($connection, $size);
+    if ($safeResult === false) {
+        throw PgsqlException::createFromPhpError();
+    }
+}
+
+
 /**
  * pg_socket returns a read only resource
  * corresponding to the socket underlying the given PostgreSQL connection.
diff --git a/rector-migrate.php b/rector-migrate.php
index e5628942..e94882d6 100644
--- a/rector-migrate.php
+++ b/rector-migrate.php
@@ -717,6 +717,7 @@
             'pg_result_error_field' => 'Safe\pg_result_error_field',
             'pg_result_seek' => 'Safe\pg_result_seek',
             'pg_select' => 'Safe\pg_select',
+            'pg_set_chunked_rows_size' => 'Safe\pg_set_chunked_rows_size',
             'pg_socket' => 'Safe\pg_socket',
             'pg_trace' => 'Safe\pg_trace',
             'pg_update' => 'Safe\pg_update',