Update copyrights for 2020

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

12 files changed, 12 insertions, 12 deletions

diff --git a/src/include/lib/binaryheap.h b/src/include/lib/binaryheap.h
index 21f96b9ca6..8d5db56468 100644
--- a/src/include/lib/binaryheap.h
+++ b/src/include/lib/binaryheap.h
@@ -3,7 +3,7 @@
  *
  * A simple binary heap implementation
  *
- * Portions Copyright (c) 2012-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2012-2020, PostgreSQL Global Development Group
  *
  * src/include/lib/binaryheap.h
  */
diff --git a/src/include/lib/bipartite_match.h b/src/include/lib/bipartite_match.h
index 7997a5d5a6..a4c3e7dcf5 100644
--- a/src/include/lib/bipartite_match.h
+++ b/src/include/lib/bipartite_match.h
@@ -1,7 +1,7 @@
 /*
  * bipartite_match.h
  *
- * Copyright (c) 2015-2019, PostgreSQL Global Development Group
+ * Copyright (c) 2015-2020, PostgreSQL Global Development Group
  *
  * src/include/lib/bipartite_match.h
  */
diff --git a/src/include/lib/bloomfilter.h b/src/include/lib/bloomfilter.h
index 3b952fbed9..52343ba40b 100644
--- a/src/include/lib/bloomfilter.h
+++ b/src/include/lib/bloomfilter.h
@@ -3,7 +3,7 @@
  * bloomfilter.h
  *	  Space-efficient set membership testing
  *
- * Copyright (c) 2018-2019, PostgreSQL Global Development Group
+ * Copyright (c) 2018-2020, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *    src/include/lib/bloomfilter.h
diff --git a/src/include/lib/dshash.h b/src/include/lib/dshash.h
index fa2e28ff3e..b86df68e77 100644
--- a/src/include/lib/dshash.h
+++ b/src/include/lib/dshash.h
@@ -3,7 +3,7 @@
  * dshash.h
  *	  Concurrent hash tables backed by dynamic shared memory areas.
  *
- * 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
  *
  * IDENTIFICATION
diff --git a/src/include/lib/hyperloglog.h b/src/include/lib/hyperloglog.h
index 508a3cf706..dea4138e98 100644
--- a/src/include/lib/hyperloglog.h
+++ b/src/include/lib/hyperloglog.h
@@ -3,7 +3,7 @@
  *
  * A simple HyperLogLog cardinality estimator implementation
  *
- * Portions Copyright (c) 2014-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2014-2020, PostgreSQL Global Development Group
  *
  * Based on Hideaki Ohno's C++ implementation.  The copyright terms of Ohno's
  * original version (the MIT license) follow.
diff --git a/src/include/lib/ilist.h b/src/include/lib/ilist.h
index b1a5974ee4..98db885f6f 100644
--- a/src/include/lib/ilist.h
+++ b/src/include/lib/ilist.h
@@ -96,7 +96,7 @@
  * }
  *
  *
- * 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
  *
  * IDENTIFICATION
diff --git a/src/include/lib/integerset.h b/src/include/lib/integerset.h
index a7882c1a26..67bf5c5039 100644
--- a/src/include/lib/integerset.h
+++ b/src/include/lib/integerset.h
@@ -2,7 +2,7 @@
  * integerset.h
  *	  In-memory data structure to hold a large set of integers efficiently
  *
- * Portions Copyright (c) 2012-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2012-2020, PostgreSQL Global Development Group
  *
  * src/include/lib/integerset.h
  */
diff --git a/src/include/lib/knapsack.h b/src/include/lib/knapsack.h
index 14fb75ca8b..2d90dc4239 100644
--- a/src/include/lib/knapsack.h
+++ b/src/include/lib/knapsack.h
@@ -1,7 +1,7 @@
 /*
  * knapsack.h
  *
- * Copyright (c) 2017-2019, PostgreSQL Global Development Group
+ * Copyright (c) 2017-2020, PostgreSQL Global Development Group
  *
  * src/include/lib/knapsack.h
  */
diff --git a/src/include/lib/pairingheap.h b/src/include/lib/pairingheap.h
index 4fbed1d9c5..7c5c0f765f 100644
--- a/src/include/lib/pairingheap.h
+++ b/src/include/lib/pairingheap.h
@@ -3,7 +3,7 @@
  *
  * A Pairing Heap implementation
  *
- * Portions Copyright (c) 2012-2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2012-2020, PostgreSQL Global Development Group
  *
  * src/include/lib/pairingheap.h
  */
diff --git a/src/include/lib/qunique.h b/src/include/lib/qunique.h
index 4d620f82ee..73aa10f165 100644
--- a/src/include/lib/qunique.h
+++ b/src/include/lib/qunique.h
@@ -2,7 +2,7 @@
  *
  * qunique.h
  *		inline array unique functions
- * Portions Copyright (c) 2019, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2019-2020, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *		src/include/lib/qunique.h
diff --git a/src/include/lib/rbtree.h b/src/include/lib/rbtree.h
index 6d79a24015..cd2c2fdb7d 100644
--- a/src/include/lib/rbtree.h
+++ b/src/include/lib/rbtree.h
@@ -3,7 +3,7 @@
  * rbtree.h
  *	  interface for PostgreSQL generic Red-Black binary tree package
  *
- * Copyright (c) 2009-2019, PostgreSQL Global Development Group
+ * Copyright (c) 2009-2020, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *		src/include/lib/rbtree.h
diff --git a/src/include/lib/stringinfo.h b/src/include/lib/stringinfo.h
index e27942728e..5a2a3dbfbc 100644
--- a/src/include/lib/stringinfo.h
+++ b/src/include/lib/stringinfo.h
@@ -8,7 +8,7 @@
  * (null-terminated text) or arbitrary binary data.  All storage is allocated
  * with palloc() (falling back to malloc in frontend code).
  *
- * 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/lib/stringinfo.h