Update to Postgres 10.16 and refresh source with new patches

Makefile

@@ -5,7 +5,7 @@ ARLIB = lib$(TARGET).a
 PGDIR = $(root_dir)/tmp/postgres
 PGDIRBZ2 = $(root_dir)/tmp/postgres.tar.bz2
 
-PG_VERSION = 10.15
+PG_VERSION = 10.16
 
 SRC_FILES := $(wildcard src/*.c src/postgres/*.c)
 OBJ_FILES := $(SRC_FILES:.c=.o)

pg_query.h

@@ -51,9 +51,9 @@ void pg_query_free_fingerprint_result(PgQueryFingerprintResult result);
 void pg_query_exit(void);
 
 // Postgres version information
-#define PG_VERSION "10.15"
+#define PG_VERSION "10.16"
 #define PG_MAJORVERSION "10"
-#define PG_VERSION_NUM 100015
+#define PG_VERSION_NUM 100016
 
 // Deprecated APIs below
 

src/postgres/include/c.h

@@ -1224,3 +1224,5 @@ extern unsigned long long strtoull(const char *str, char **endptr, int base);
 #include "port.h"
 
 #endif							/* C_H */
+#undef StaticAssertDecl
+#define StaticAssertDecl(condition, errmessage)

src/postgres/include/nodes/memnodes.h

@@ -76,7 +76,7 @@ typedef struct MemoryContextData
 	/* these two fields are placed here to minimize alignment wastage: */
 	bool		isReset;		/* T = no space alloced since last reset */
 	bool		allowInCritSection; /* allow palloc in critical section */
-	MemoryContextMethods *methods;	/* virtual function table */
+	const MemoryContextMethods *methods;	/* virtual function table */
 	MemoryContext parent;		/* NULL if no parent (toplevel context) */
 	MemoryContext firstchild;	/* head of linked list of children */
 	MemoryContext prevchild;	/* previous child of same parent */

src/postgres/include/nodes/parsenodes.h

@@ -664,6 +664,7 @@ typedef struct TableLikeClause
 	NodeTag		type;
 	RangeVar   *relation;
 	bits32		options;		/* OR of TableLikeOption flags */
+	Oid			relationOid;	/* If table has been looked up, its OID */
 } TableLikeClause;
 
 typedef enum TableLikeOption

src/postgres/include/nodes/relation.h

@@ -674,6 +674,7 @@ typedef struct IndexOptInfo
 	bool		amhasgettuple;	/* does AM have amgettuple interface? */
 	bool		amhasgetbitmap; /* does AM have amgetbitmap interface? */
 	bool		amcanparallel;	/* does AM support parallel scan? */
+	bool		amcanmarkpos;	/* does AM support mark/restore? */
 	/* Rather than include amapi.h here, we declare amcostestimate like this */
 	void		(*amcostestimate) ();	/* AM's cost estimator */
 } IndexOptInfo;

src/postgres/include/pg_config.h

@@ -744,7 +744,7 @@
 #define PACKAGE_NAME "PostgreSQL"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "PostgreSQL 10.15"
+#define PACKAGE_STRING "PostgreSQL 10.16"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "postgresql"
@@ -753,7 +753,7 @@
 #define PACKAGE_URL ""
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "10.15"
+#define PACKAGE_VERSION "10.16"
 
 /* Define to the name of a signed 128-bit integer type. */
 #define PG_INT128_TYPE __int128
@@ -772,13 +772,13 @@
 #define PG_PRINTF_ATTRIBUTE printf
 
 /* PostgreSQL version as a string */
-#define PG_VERSION "10.15"
+#define PG_VERSION "10.16"
 
 /* PostgreSQL version as a number */
-#define PG_VERSION_NUM 100015
+#define PG_VERSION_NUM 100016
 
 /* A string containing the version number, platform, and C compiler */
-#define PG_VERSION_STR "PostgreSQL 10.15 on x86_64-apple-darwin19.6.0, compiled by Apple clang version 12.0.0 (clang-1200.0.32.28), 64-bit"
+#define PG_VERSION_STR "PostgreSQL 10.16 on x86_64-apple-darwin19.6.0, compiled by Apple clang version 12.0.0 (clang-1200.0.32.29), 64-bit"
 
 /* Define to 1 to allow profiling output to be saved separately for each
    process. */

src/postgres/include/postmaster/bgworker_internals.h

@@ -46,11 +46,12 @@ extern slist_head BackgroundWorkerList;
 
 extern Size BackgroundWorkerShmemSize(void);
 extern void BackgroundWorkerShmemInit(void);
-extern void BackgroundWorkerStateChange(void);
+extern void BackgroundWorkerStateChange(bool allow_new_workers);
 extern void ForgetBackgroundWorker(slist_mutable_iter *cur);
 extern void ReportBackgroundWorkerPID(RegisteredBgWorker *);
 extern void ReportBackgroundWorkerExit(slist_mutable_iter *cur);
 extern void BackgroundWorkerStopNotifications(pid_t pid);
+extern void ForgetUnstartedBackgroundWorkers(void);
 extern void ResetBackgroundWorkerCrashTimes(void);
 
 /* Function to start a background worker, called from postmaster.c */

src/postgres/include/storage/lock.h

@@ -47,10 +47,10 @@ extern bool Debug_deadlocks;
 
 /*
  * Top-level transactions are identified by VirtualTransactionIDs comprising
- * the BackendId of the backend running the xact, plus a locally-assigned
- * LocalTransactionId.  These are guaranteed unique over the short term,
- * but will be reused after a database restart; hence they should never
- * be stored on disk.
+ * PGPROC fields backendId and lxid.  For prepared transactions, the
+ * LocalTransactionId is an ordinary XID.  These are guaranteed unique over
+ * the short term, but will be reused after a database restart or XID
+ * wraparound; hence they should never be stored on disk.
  *
  * Note that struct VirtualTransactionId can not be assumed to be atomically
  * assignable as a whole.  However, type LocalTransactionId is assumed to
@@ -62,15 +62,16 @@ extern bool Debug_deadlocks;
  */
 typedef struct
 {
-	BackendId	backendId;		/* determined at backend startup */
-	LocalTransactionId localTransactionId;	/* backend-local transaction id */
+	BackendId	backendId;		/* backendId from PGPROC */
+	LocalTransactionId localTransactionId;	/* lxid from PGPROC */
 } VirtualTransactionId;
 
 #define InvalidLocalTransactionId		0
 #define LocalTransactionIdIsValid(lxid) ((lxid) != InvalidLocalTransactionId)
 #define VirtualTransactionIdIsValid(vxid) \
-	(((vxid).backendId != InvalidBackendId) && \
-	 LocalTransactionIdIsValid((vxid).localTransactionId))
+	(LocalTransactionIdIsValid((vxid).localTransactionId))
+#define VirtualTransactionIdIsPreparedXact(vxid) \
+	((vxid).backendId == InvalidBackendId)
 #define VirtualTransactionIdEquals(vxid1, vxid2) \
 	((vxid1).backendId == (vxid2).backendId && \
 	 (vxid1).localTransactionId == (vxid2).localTransactionId)

src/postgres/include/utils/memutils.h

@@ -133,7 +133,7 @@ GetMemoryChunkContext(void *pointer)
  * specific creation routines, and noplace else.
  */
 extern MemoryContext MemoryContextCreate(NodeTag tag, Size size,
-					MemoryContextMethods *methods,
+					const MemoryContextMethods *methods,
 					MemoryContext parent,
 					const char *name);
 

src/postgres/include/utils/timestamp.h

@@ -72,6 +72,8 @@ extern TimestampTz GetSQLCurrentTimestamp(int32 typmod);
 extern Timestamp GetSQLLocalTimestamp(int32 typmod);
 extern void TimestampDifference(TimestampTz start_time, TimestampTz stop_time,
 					long *secs, int *microsecs);
+extern long TimestampDifferenceMilliseconds(TimestampTz start_time,
+											TimestampTz stop_time);
 extern bool TimestampDifferenceExceeds(TimestampTz start_time,
 						   TimestampTz stop_time,
 						   int msec);

src/postgres/src_backend_nodes_copyfuncs.c

@@ -3554,6 +3554,7 @@ _copyTableLikeClause(const TableLikeClause *from)
 
 	COPY_NODE_FIELD(relation);
 	COPY_SCALAR_FIELD(options);
+	COPY_SCALAR_FIELD(relationOid);
 
 	return newnode;
 }

src/postgres/src_backend_nodes_equalfuncs.c

@@ -1478,6 +1478,7 @@ _equalTableLikeClause(const TableLikeClause *a, const TableLikeClause *b)
 {
 	COMPARE_NODE_FIELD(relation);
 	COMPARE_SCALAR_FIELD(options);
+	COMPARE_SCALAR_FIELD(relationOid);
 
 	return true;
 }

src/postgres/src_backend_nodes_list.c

@@ -3,6 +3,7 @@
  * - lappend
  * - new_list
  * - new_tail_cell
+ * - check_list_invariants
  * - lcons
  * - new_head_cell
  * - list_concat