Update copyright for 2023

Backpatch-through: 11

src/backend/utils/mmgr/alignedalloc.c

@@ -8,7 +8,7 @@
  * operations such as pfree() and repalloc() to work correctly on a memory
  * chunk that was allocated by palloc_aligned().
  *
- * Portions Copyright (c) 2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2022-2023, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *	  src/backend/utils/mmgr/alignedalloc.c

src/backend/utils/mmgr/aset.c

@@ -7,7 +7,7 @@
  * type.
  *
  *
- * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/utils/mmgr/dsa.c

@@ -39,7 +39,7 @@
  * empty and be returned to the free page manager, and whole segments can
  * become empty and be returned to the operating system.
  *
- * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/utils/mmgr/freepage.c

@@ -42,7 +42,7 @@
  * where memory fragmentation is very severe, only a tiny fraction of
  * the pages under management are consumed by this btree.
  *
- * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/utils/mmgr/generation.c

@@ -6,7 +6,7 @@
  * Generation is a custom MemoryContext implementation designed for cases of
  * chunks with similar lifespan.
  *
- * Portions Copyright (c) 2017-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2017-2023, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *	  src/backend/utils/mmgr/generation.c

src/backend/utils/mmgr/mcxt.c

@@ -9,7 +9,7 @@
  * context's MemoryContextMethods struct.
  *
  *
- * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/utils/mmgr/memdebug.c

@@ -5,7 +5,7 @@
  *	  public API of the memory management subsystem.
  *
  *
- * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/backend/utils/mmgr/memdebug.c

src/backend/utils/mmgr/meson.build

@@ -1,4 +1,4 @@
-# Copyright (c) 2022, PostgreSQL Global Development Group
+# Copyright (c) 2022-2023, PostgreSQL Global Development Group
 
 backend_sources += files(
   'alignedalloc.c',

src/backend/utils/mmgr/portalmem.c

@@ -8,7 +8,7 @@
  * doesn't actually run the executor for them.
  *
  *
- * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/utils/mmgr/slab.c

@@ -8,7 +8,7 @@
  * with minimal memory wastage and fragmentation.
  *
  *
- * Portions Copyright (c) 2017-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2017-2023, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *	  src/backend/utils/mmgr/slab.c