Make the order of the header file includes consistent in backend modules.

Similar to commits 7e735035f2 and dddf4cdc33, this commit makes the order
of header file inclusion consistent for backend modules.

In the passing, removed a couple of duplicate inclusions.

Author: Vignesh C
Reviewed-by: Kuntal Ghosh and Amit Kapila
Discussion: https://postgr.es/m/CALDaNm2Sznv8RR6Ex-iJO6xAdsxgWhCoETkaYX=+9DW3q0QCfA@mail.gmail.com

src/backend/executor/execAmi.c

@@ -28,7 +28,6 @@
 #include "executor/nodeGather.h"
 #include "executor/nodeGatherMerge.h"
 #include "executor/nodeGroup.h"
-#include "executor/nodeGroup.h"
 #include "executor/nodeHash.h"
 #include "executor/nodeHashjoin.h"
 #include "executor/nodeIndexonlyscan.h"
@@ -62,7 +61,6 @@
 #include "utils/rel.h"
 #include "utils/syscache.h"
 
-
 static bool IndexSupportsBackwardScan(Oid indexid);
 
 

src/backend/executor/execExprInterp.c

@@ -62,22 +62,21 @@
 #include "executor/execExpr.h"
 #include "executor/nodeSubplan.h"
 #include "funcapi.h"
-#include "utils/array.h"
-#include "utils/memutils.h"
 #include "miscadmin.h"
 #include "nodes/nodeFuncs.h"
 #include "parser/parsetree.h"
 #include "pgstat.h"
+#include "utils/array.h"
 #include "utils/builtins.h"
 #include "utils/date.h"
 #include "utils/datum.h"
 #include "utils/expandedrecord.h"
 #include "utils/lsyscache.h"
+#include "utils/memutils.h"
 #include "utils/timestamp.h"
 #include "utils/typcache.h"
 #include "utils/xml.h"
 
-
 /*
  * Use computed-goto-based opcode dispatch when computed gotos are available.
  * But use a separate symbol so that it's easy to adjust locally in this file

src/backend/executor/execGrouping.c

@@ -21,8 +21,8 @@
 #include "access/parallel.h"
 #include "executor/executor.h"
 #include "miscadmin.h"
-#include "utils/lsyscache.h"
 #include "utils/hashutils.h"
+#include "utils/lsyscache.h"
 #include "utils/memutils.h"
 
 static uint32 TupleHashTableHash(struct tuplehash_hash *tb, const MinimalTuple tuple);

src/backend/executor/execParallel.c

@@ -31,14 +31,15 @@
 #include "executor/nodeForeignscan.h"
 #include "executor/nodeHash.h"
 #include "executor/nodeHashjoin.h"
-#include "executor/nodeIndexscan.h"
 #include "executor/nodeIndexonlyscan.h"
+#include "executor/nodeIndexscan.h"
 #include "executor/nodeSeqscan.h"
 #include "executor/nodeSort.h"
 #include "executor/nodeSubplan.h"
 #include "executor/tqueue.h"
 #include "jit/jit.h"
 #include "nodes/nodeFuncs.h"
+#include "pgstat.h"
 #include "storage/spin.h"
 #include "tcop/tcopprot.h"
 #include "utils/datum.h"
@@ -46,7 +47,6 @@
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
 #include "utils/snapmgr.h"
-#include "pgstat.h"
 
 /*
  * Magic numbers for parallel executor communication.  We use constants

src/backend/executor/execProcnode.c

@@ -113,9 +113,8 @@
 #include "executor/nodeValuesscan.h"
 #include "executor/nodeWindowAgg.h"
 #include "executor/nodeWorktablescan.h"
-#include "nodes/nodeFuncs.h"
 #include "miscadmin.h"
-
+#include "nodes/nodeFuncs.h"
 
 static TupleTableSlot *ExecProcNodeFirst(PlanState *node);
 static TupleTableSlot *ExecProcNodeInstr(PlanState *node);

src/backend/executor/execTuples.c

@@ -60,8 +60,8 @@
 #include "access/heaptoast.h"
 #include "access/htup_details.h"
 #include "access/tupdesc_details.h"
-#include "funcapi.h"
 #include "catalog/pg_type.h"
+#include "funcapi.h"
 #include "nodes/nodeFuncs.h"
 #include "storage/bufmgr.h"
 #include "utils/builtins.h"
@@ -69,7 +69,6 @@
 #include "utils/lsyscache.h"
 #include "utils/typcache.h"
 
-
 static TupleDesc ExecTypeFromTLInternal(List *targetList,
 										bool skipjunk);
 static pg_attribute_always_inline void slot_deform_heap_tuple(TupleTableSlot *slot, HeapTuple tuple, uint32 *offp,

src/backend/executor/nodeAgg.c

@@ -231,13 +231,12 @@
 #include "parser/parse_coerce.h"
 #include "utils/acl.h"
 #include "utils/builtins.h"
+#include "utils/datum.h"
 #include "utils/expandeddatum.h"
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
 #include "utils/syscache.h"
 #include "utils/tuplesort.h"
-#include "utils/datum.h"
-
 
 static void select_current_set(AggState *aggstate, int setno, bool is_hash);
 static void initialize_phase(AggState *aggstate, int newphase);

src/backend/executor/nodeBitmapHeapscan.c

@@ -49,9 +49,8 @@
 #include "storage/predicate.h"
 #include "utils/memutils.h"
 #include "utils/rel.h"
-#include "utils/spccache.h"
 #include "utils/snapmgr.h"
-
+#include "utils/spccache.h"
 
 static TupleTableSlot *BitmapHeapNext(BitmapHeapScanState *node);
 static inline void BitmapDoneInitializingSharedState(ParallelBitmapHeapState *pstate);

src/backend/executor/nodeCustom.c

@@ -13,16 +13,15 @@
 #include "access/parallel.h"
 #include "executor/executor.h"
 #include "executor/nodeCustom.h"
+#include "miscadmin.h"
 #include "nodes/execnodes.h"
 #include "nodes/extensible.h"
 #include "nodes/plannodes.h"
-#include "miscadmin.h"
 #include "parser/parsetree.h"
 #include "utils/hsearch.h"
 #include "utils/memutils.h"
 #include "utils/rel.h"
 
-
 static TupleTableSlot *ExecCustomScan(PlanState *pstate);
 
 

src/backend/executor/nodeHash.c

@@ -38,11 +38,10 @@
 #include "pgstat.h"
 #include "port/atomics.h"
 #include "utils/dynahash.h"
-#include "utils/memutils.h"
 #include "utils/lsyscache.h"
+#include "utils/memutils.h"
 #include "utils/syscache.h"
 
-
 static void ExecHashIncreaseNumBatches(HashJoinTable hashtable);
 static void ExecHashIncreaseNumBuckets(HashJoinTable hashtable);
 static void ExecParallelHashIncreaseNumBatches(HashJoinTable hashtable);

src/backend/executor/nodeSubplan.c

@@ -32,14 +32,13 @@
 #include "access/htup_details.h"
 #include "executor/executor.h"
 #include "executor/nodeSubplan.h"
+#include "miscadmin.h"
 #include "nodes/makefuncs.h"
 #include "nodes/nodeFuncs.h"
-#include "miscadmin.h"
 #include "utils/array.h"
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
 
-
 static Datum ExecHashSubPlan(SubPlanState *node,
 							 ExprContext *econtext,
 							 bool *isNull);

src/backend/executor/nodeTableFuncscan.c

@@ -22,17 +22,16 @@
  */
 #include "postgres.h"
 
-#include "nodes/execnodes.h"
 #include "executor/executor.h"
 #include "executor/nodeTableFuncscan.h"
 #include "executor/tablefunc.h"
 #include "miscadmin.h"
+#include "nodes/execnodes.h"
 #include "utils/builtins.h"
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
 #include "utils/xml.h"
 
-
 static TupleTableSlot *TableFuncNext(TableFuncScanState *node);
 static bool TableFuncRecheck(TableFuncScanState *node, TupleTableSlot *slot);
 

src/backend/executor/nodeWindowAgg.c

@@ -46,8 +46,8 @@
 #include "parser/parse_coerce.h"
 #include "utils/acl.h"
 #include "utils/builtins.h"
-#include "utils/expandeddatum.h"
 #include "utils/datum.h"
+#include "utils/expandeddatum.h"
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
 #include "utils/regproc.h"