Update copyrights for 2013

Fully update git head, and update back branches in ./COPYRIGHT and
legal.sgml files.

src/backend/executor/execAmi.c

@@ -3,7 +3,7 @@
  * execAmi.c
  *	  miscellaneous executor access method routines
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *	src/backend/executor/execAmi.c

src/backend/executor/execCurrent.c

@@ -3,7 +3,7 @@
  * execCurrent.c
  *	  executor support for WHERE CURRENT OF cursor
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *	src/backend/executor/execCurrent.c

src/backend/executor/execGrouping.c

@@ -7,7 +7,7 @@
  * collation-sensitive, so the code in this file has no support for passing
  * collation settings through from callers.  That may have to change someday.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/execJunk.c

@@ -3,7 +3,7 @@
  * execJunk.c
  *	  Junk attribute support stuff....
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/execMain.c

@@ -26,7 +26,7 @@
  *	before ExecutorEnd.  This can be omitted only in case of EXPLAIN,
  *	which should also omit ExecutorRun.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/execProcnode.c

@@ -7,7 +7,7 @@
  *	 ExecProcNode, or ExecEndNode on its subnodes and do the appropriate
  *	 processing.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/execQual.c

@@ -3,7 +3,7 @@
  * execQual.c
  *	  Routines to evaluate qualification and targetlist expressions
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/execScan.c

@@ -7,7 +7,7 @@
  *	  stuff - checking the qualification and projecting the tuple
  *	  appropriately.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/execTuples.c

@@ -12,7 +12,7 @@
  *	  This information is needed by routines manipulating tuples
  *	  (getattribute, formtuple, etc.).
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/execUtils.c

@@ -3,7 +3,7 @@
  * execUtils.c
  *	  miscellaneous executor utility routines
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/functions.c

@@ -3,7 +3,7 @@
  * functions.c
  *	  Execution of SQL-language functions
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/instrument.c

@@ -4,7 +4,7 @@
  *	 functions for instrumentation of plan execution
  *
  *
- * Copyright (c) 2001-2012, PostgreSQL Global Development Group
+ * Copyright (c) 2001-2013, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *	  src/backend/executor/instrument.c

src/backend/executor/nodeAgg.c

@@ -67,7 +67,7 @@
  *	  but direct examination of the node is needed to use it before 9.0.
  *
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/executor/nodeAppend.c

@@ -3,7 +3,7 @@
  * nodeAppend.c
  *	  routines to handle append nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeBitmapAnd.c

@@ -3,7 +3,7 @@
  * nodeBitmapAnd.c
  *	  routines to handle BitmapAnd nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeBitmapHeapscan.c

@@ -16,7 +16,7 @@
  * index qual conditions.
  *
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeBitmapIndexscan.c

@@ -3,7 +3,7 @@
  * nodeBitmapIndexscan.c
  *	  Routines to support bitmapped index scans of relations
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeBitmapOr.c

@@ -3,7 +3,7 @@
  * nodeBitmapOr.c
  *	  routines to handle BitmapOr nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeCtescan.c

@@ -3,7 +3,7 @@
  * nodeCtescan.c
  *	  routines to handle CteScan nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeForeignscan.c

@@ -3,7 +3,7 @@
  * nodeForeignscan.c
  *	  Routines to support scans of foreign tables
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeFunctionscan.c

@@ -3,7 +3,7 @@
  * nodeFunctionscan.c
  *	  Support routines for scanning RangeFunctions (functions in rangetable).
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeGroup.c

@@ -3,7 +3,7 @@
  * nodeGroup.c
  *	  Routines to handle group nodes (used for queries with GROUP BY clause).
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeHash.c

@@ -3,7 +3,7 @@
  * nodeHash.c
  *	  Routines to hash relations for hashjoin
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeHashjoin.c

@@ -3,7 +3,7 @@
  * nodeHashjoin.c
  *	  Routines to handle hash join nodes
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeIndexonlyscan.c

@@ -3,7 +3,7 @@
  * nodeIndexonlyscan.c
  *	  Routines to support index-only scans
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeIndexscan.c

@@ -3,7 +3,7 @@
  * nodeIndexscan.c
  *	  Routines to support indexed scans of relations
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeLimit.c

@@ -3,7 +3,7 @@
  * nodeLimit.c
  *	  Routines to handle limiting of query results where appropriate
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeLockRows.c

@@ -3,7 +3,7 @@
  * nodeLockRows.c
  *	  Routines to handle FOR UPDATE/FOR SHARE row locking
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeMaterial.c

@@ -3,7 +3,7 @@
  * nodeMaterial.c
  *	  Routines to handle materialization nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeMergeAppend.c

@@ -3,7 +3,7 @@
  * nodeMergeAppend.c
  *	  routines to handle MergeAppend nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeMergejoin.c

@@ -3,7 +3,7 @@
  * nodeMergejoin.c
  *	  routines supporting merge joins
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeModifyTable.c

@@ -3,7 +3,7 @@
  * nodeModifyTable.c
  *	  routines to handle ModifyTable nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeNestloop.c

@@ -3,7 +3,7 @@
  * nodeNestloop.c
  *	  routines to support nest-loop joins
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeRecursiveunion.c

@@ -3,7 +3,7 @@
  * nodeRecursiveunion.c
  *	  routines to handle RecursiveUnion nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeResult.c

@@ -34,7 +34,7 @@
  *		plan normally and pass back the results.
  *
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/executor/nodeSeqscan.c

@@ -3,7 +3,7 @@
  * nodeSeqscan.c
  *	  Support routines for sequential scans of relations.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeSetOp.c

@@ -32,7 +32,7 @@
  * input group.
  *
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeSort.c

@@ -3,7 +3,7 @@
  * nodeSort.c
  *	  Routines to handle sorting of relations.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeSubplan.c

@@ -3,7 +3,7 @@
  * nodeSubplan.c
  *	  routines to support subselects
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/executor/nodeSubqueryscan.c

@@ -7,7 +7,7 @@
  * we need two sets of code.  Ought to look at trying to unify the cases.
  *
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeTidscan.c

@@ -3,7 +3,7 @@
  * nodeTidscan.c
  *	  Routines to support direct tid scans of relations
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeUnique.c

@@ -11,7 +11,7 @@
  * (It's debatable whether the savings justifies carrying two plan node
  * types, though.)
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeValuesscan.c

@@ -4,7 +4,7 @@
  *	  Support routines for scanning Values lists
  *	  ("VALUES (...), (...), ..." in rangetable).
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/nodeWindowAgg.c

@@ -23,7 +23,7 @@
  * aggregate function over all rows in the current row's window frame.
  *
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/executor/nodeWorktablescan.c

@@ -3,7 +3,7 @@
  * nodeWorktablescan.c
  *	  routines to handle WorkTableScan nodes.
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/spi.c

@@ -3,7 +3,7 @@
  * spi.c
  *				Server Programming Interface
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/executor/tstoreReceiver.c

@@ -9,7 +9,7 @@
  * data even if the underlying table is dropped.
  *
  *
- * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION