Update copyrights for 2020

Backpatch-through: update all files in master, backpatch legal files through 9.4

src/include/commands/alter.h

@@ -4,7 +4,7 @@
  *	  prototypes for commands/alter.c
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/alter.h

src/include/commands/async.h

@@ -3,7 +3,7 @@
  * async.h
  *	  Asynchronous notification: NOTIFY, LISTEN, UNLISTEN
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/async.h

src/include/commands/cluster.h

@@ -3,7 +3,7 @@
  * cluster.h
  *	  header file for postgres cluster command stuff
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994-5, Regents of the University of California
  *
  * src/include/commands/cluster.h

src/include/commands/collationcmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for collationcmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/collationcmds.h

src/include/commands/comment.h

@@ -7,7 +7,7 @@
  *
  * Prototypes for functions in commands/comment.c
  *
- * Copyright (c) 1999-2019, PostgreSQL Global Development Group
+ * Copyright (c) 1999-2020, PostgreSQL Global Development Group
  *
  *-------------------------------------------------------------------------
  */

src/include/commands/conversioncmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for conversioncmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/conversioncmds.h

src/include/commands/copy.h

@@ -4,7 +4,7 @@
  *	  Definitions for using the POSTGRES copy command.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/copy.h

src/include/commands/createas.h

@@ -4,7 +4,7 @@
  *	  prototypes for createas.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/createas.h

src/include/commands/dbcommands.h

@@ -4,7 +4,7 @@
  *		Database management commands (create/drop database).
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/dbcommands.h

src/include/commands/dbcommands_xlog.h

@@ -4,7 +4,7 @@
  *		Database resource manager XLOG definitions (create/drop database).
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/dbcommands_xlog.h

src/include/commands/defrem.h

@@ -4,7 +4,7 @@
  *	  POSTGRES define and remove utility definitions.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/defrem.h

src/include/commands/discard.h

@@ -4,7 +4,7 @@
  *	  prototypes for discard.c.
  *
  *
- * Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Copyright (c) 1996-2020, PostgreSQL Global Development Group
  *
  * src/include/commands/discard.h
  *

src/include/commands/event_trigger.h

@@ -3,7 +3,7 @@
  * event_trigger.h
  *	  Declarations for command trigger handling.
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/event_trigger.h

src/include/commands/explain.h

@@ -3,7 +3,7 @@
  * explain.h
  *	  prototypes for explain.c
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994-5, Regents of the University of California
  *
  * src/include/commands/explain.h

src/include/commands/extension.h

@@ -4,7 +4,7 @@
  *		Extension management commands (create/drop extension).
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/extension.h

src/include/commands/lockcmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for lockcmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/lockcmds.h

src/include/commands/matview.h

@@ -4,7 +4,7 @@
  *	  prototypes for matview.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/matview.h

src/include/commands/policy.h

@@ -4,7 +4,7 @@
  *	  prototypes for policy.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/policy.h

src/include/commands/portalcmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for portalcmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/portalcmds.h

src/include/commands/prepare.h

@@ -4,7 +4,7 @@
  *	  PREPARE, EXECUTE and DEALLOCATE commands, and prepared-stmt storage
  *
  *
- * Copyright (c) 2002-2019, PostgreSQL Global Development Group
+ * Copyright (c) 2002-2020, PostgreSQL Global Development Group
  *
  * src/include/commands/prepare.h
  *

src/include/commands/progress.h

@@ -7,7 +7,7 @@
  *	  constants, you probably also need to update the views based on them
  *	  in system_views.sql.
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/progress.h

src/include/commands/publicationcmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for publicationcmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/publicationcmds.h

src/include/commands/schemacmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for schemacmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/schemacmds.h

src/include/commands/seclabel.h

@@ -3,7 +3,7 @@
  *
  * Prototypes for functions in commands/seclabel.c
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  */
 #ifndef SECLABEL_H

src/include/commands/sequence.h

@@ -3,7 +3,7 @@
  * sequence.h
  *	  prototypes for sequence.c.
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/sequence.h

src/include/commands/subscriptioncmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for subscriptioncmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/subscriptioncmds.h

src/include/commands/tablecmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for tablecmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/tablecmds.h

src/include/commands/tablespace.h

@@ -4,7 +4,7 @@
  *		Tablespace management commands (create/drop tablespace).
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/tablespace.h

src/include/commands/trigger.h

@@ -3,7 +3,7 @@
  * trigger.h
  *	  Declarations for trigger handling.
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/trigger.h

src/include/commands/typecmds.h

@@ -4,7 +4,7 @@
  *	  prototypes for typecmds.c.
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/typecmds.h

src/include/commands/vacuum.h

@@ -4,7 +4,7 @@
  *	  header file for postgres vacuum cleaner and statistics analyzer
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/vacuum.h

src/include/commands/variable.h

@@ -2,7 +2,7 @@
  * variable.h
  *		Routines for handling specialized SET variables.
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/variable.h

src/include/commands/view.h

@@ -4,7 +4,7 @@
  *
  *
  *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/commands/view.h