Make ExplainPropertyInteger accept 64bit input, remove *Long variant.

'long' is not useful type across platforms, as it's 32bit on 32 bit
platforms, and even on some 64bit platforms (e.g. windows) it's still
only 32bits wide.

As ExplainPropertyInteger should never be performance critical, change
it to accept a 64bit argument and remove ExplainPropertyLong.

Author: Andres Freund
Discussion: https://postgr.es/m/20180314164832.n56wt7zcbpzi6zxe@alap3.anarazel.de

contrib/file_fdw/file_fdw.c

@@ -622,8 +622,8 @@ fileExplainForeignScan(ForeignScanState *node, ExplainState *es)
 
 		if (!is_program &&
 			stat(filename, &stat_buf) == 0)
-			ExplainPropertyLong("Foreign File Size", (long) stat_buf.st_size,
-								es);
+			ExplainPropertyInteger("Foreign File Size",
+								   (int64) stat_buf.st_size, es);
 	}
 }
 

src/backend/commands/explain.c

@@ -1400,8 +1400,9 @@ ExplainNode(PlanState *planstate, List *ancestors,
 				show_instrumentation_count("Rows Removed by Filter", 1,
 										   planstate, es);
 			if (es->analyze)
-				ExplainPropertyLong("Heap Fetches",
-									((IndexOnlyScanState *) planstate)->ioss_HeapFetches, es);
+				ExplainPropertyInteger("Heap Fetches",
+									   ((IndexOnlyScanState *) planstate)->ioss_HeapFetches,
+									   es);
 			break;
 		case T_BitmapIndexScan:
 			show_scan_qual(((BitmapIndexScan *) plan)->indexqualorig,
@@ -2325,7 +2326,7 @@ show_sort_info(SortState *sortstate, ExplainState *es)
 		else
 		{
 			ExplainPropertyText("Sort Method", sortMethod, es);
-			ExplainPropertyLong("Sort Space Used", spaceUsed, es);
+			ExplainPropertyInteger("Sort Space Used", spaceUsed, es);
 			ExplainPropertyText("Sort Space Type", spaceType, es);
 		}
 	}
@@ -2366,7 +2367,7 @@ show_sort_info(SortState *sortstate, ExplainState *es)
 				ExplainOpenGroup("Worker", NULL, true, es);
 				ExplainPropertyInteger("Worker Number", n, es);
 				ExplainPropertyText("Sort Method", sortMethod, es);
-				ExplainPropertyLong("Sort Space Used", spaceUsed, es);
+				ExplainPropertyInteger("Sort Space Used", spaceUsed, es);
 				ExplainPropertyText("Sort Space Type", spaceType, es);
 				ExplainCloseGroup("Worker", NULL, true, es);
 			}
@@ -2445,13 +2446,13 @@ show_hash_info(HashState *hashstate, ExplainState *es)
 
 		if (es->format != EXPLAIN_FORMAT_TEXT)
 		{
-			ExplainPropertyLong("Hash Buckets", hinstrument.nbuckets, es);
-			ExplainPropertyLong("Original Hash Buckets",
+			ExplainPropertyInteger("Hash Buckets", hinstrument.nbuckets, es);
+			ExplainPropertyInteger("Original Hash Buckets",
 								hinstrument.nbuckets_original, es);
-			ExplainPropertyLong("Hash Batches", hinstrument.nbatch, es);
-			ExplainPropertyLong("Original Hash Batches",
+			ExplainPropertyInteger("Hash Batches", hinstrument.nbatch, es);
+			ExplainPropertyInteger("Original Hash Batches",
 								hinstrument.nbatch_original, es);
-			ExplainPropertyLong("Peak Memory Usage", spacePeakKb, es);
+			ExplainPropertyInteger("Peak Memory Usage", spacePeakKb, es);
 		}
 		else if (hinstrument.nbatch_original != hinstrument.nbatch ||
 				 hinstrument.nbuckets_original != hinstrument.nbuckets)
@@ -2484,8 +2485,10 @@ show_tidbitmap_info(BitmapHeapScanState *planstate, ExplainState *es)
 {
 	if (es->format != EXPLAIN_FORMAT_TEXT)
 	{
-		ExplainPropertyLong("Exact Heap Blocks", planstate->exact_pages, es);
-		ExplainPropertyLong("Lossy Heap Blocks", planstate->lossy_pages, es);
+		ExplainPropertyInteger("Exact Heap Blocks",
+							   planstate->exact_pages, es);
+		ExplainPropertyInteger("Lossy Heap Blocks",
+							   planstate->lossy_pages, es);
 	}
 	else
 	{
@@ -2695,16 +2698,26 @@ show_buffer_usage(ExplainState *es, const BufferUsage *usage)
 	}
 	else
 	{
-		ExplainPropertyLong("Shared Hit Blocks", usage->shared_blks_hit, es);
-		ExplainPropertyLong("Shared Read Blocks", usage->shared_blks_read, es);
-		ExplainPropertyLong("Shared Dirtied Blocks", usage->shared_blks_dirtied, es);
-		ExplainPropertyLong("Shared Written Blocks", usage->shared_blks_written, es);
-		ExplainPropertyLong("Local Hit Blocks", usage->local_blks_hit, es);
-		ExplainPropertyLong("Local Read Blocks", usage->local_blks_read, es);
-		ExplainPropertyLong("Local Dirtied Blocks", usage->local_blks_dirtied, es);
-		ExplainPropertyLong("Local Written Blocks", usage->local_blks_written, es);
-		ExplainPropertyLong("Temp Read Blocks", usage->temp_blks_read, es);
-		ExplainPropertyLong("Temp Written Blocks", usage->temp_blks_written, es);
+		ExplainPropertyInteger("Shared Hit Blocks",
+							   usage->shared_blks_hit, es);
+		ExplainPropertyInteger("Shared Read Blocks",
+							   usage->shared_blks_read, es);
+		ExplainPropertyInteger("Shared Dirtied Blocks",
+							   usage->shared_blks_dirtied, es);
+		ExplainPropertyInteger("Shared Written Blocks",
+							   usage->shared_blks_written, es);
+		ExplainPropertyInteger("Local Hit Blocks",
+							   usage->local_blks_hit, es);
+		ExplainPropertyInteger("Local Read Blocks",
+							   usage->local_blks_read, es);
+		ExplainPropertyInteger("Local Dirtied Blocks",
+							   usage->local_blks_dirtied, es);
+		ExplainPropertyInteger("Local Written Blocks",
+							   usage->local_blks_written, es);
+		ExplainPropertyInteger("Temp Read Blocks",
+							   usage->temp_blks_read, es);
+		ExplainPropertyInteger("Temp Written Blocks",
+							   usage->temp_blks_written, es);
 		if (track_io_timing)
 		{
 			ExplainPropertyFloat("I/O Read Time", INSTR_TIME_GET_MILLISEC(usage->blk_read_time), 3, es);
@@ -3309,23 +3322,11 @@ ExplainPropertyText(const char *qlabel, const char *value, ExplainState *es)
  * Explain an integer-valued property.
  */
 void
-ExplainPropertyInteger(const char *qlabel, int value, ExplainState *es)
+ExplainPropertyInteger(const char *qlabel, int64 value, ExplainState *es)
 {
 	char		buf[32];
 
-	snprintf(buf, sizeof(buf), "%d", value);
-	ExplainProperty(qlabel, buf, true, es);
-}
-
-/*
- * Explain a long-integer-valued property.
- */
-void
-ExplainPropertyLong(const char *qlabel, long value, ExplainState *es)
-{
-	char		buf[32];
-
-	snprintf(buf, sizeof(buf), "%ld", value);
+	snprintf(buf, sizeof(buf), INT64_FORMAT, value);
 	ExplainProperty(qlabel, buf, true, es);
 }
 

src/include/commands/explain.h

@@ -93,10 +93,8 @@ extern void ExplainPropertyListNested(const char *qlabel, List *data,
 						  ExplainState *es);
 extern void ExplainPropertyText(const char *qlabel, const char *value,
 					ExplainState *es);
-extern void ExplainPropertyInteger(const char *qlabel, int value,
+extern void ExplainPropertyInteger(const char *qlabel, int64 value,
 					   ExplainState *es);
-extern void ExplainPropertyLong(const char *qlabel, long value,
-					ExplainState *es);
 extern void ExplainPropertyFloat(const char *qlabel, double value, int ndigits,
 					 ExplainState *es);
 extern void ExplainPropertyBool(const char *qlabel, bool value,