From: Pierre Ducroquet <p.psql@pinaraf.info>
Date: Thu, 27 Jul 2023 10:04:51 +0200
Subject: [PATCH 3/4] store oids as integer instead of string

---
 src/bin/pg_dump/pg_backup_archiver.c | 63 ++++++++++++++++++----------
 1 file changed, 42 insertions(+), 21 deletions(-)

diff --git a/src/bin/pg_dump/pg_backup_archiver.c b/src/bin/pg_dump/pg_backup_archiver.c
index 0fd6510c10..b33cf60546 100644
--- a/src/bin/pg_dump/pg_backup_archiver.c
+++ b/src/bin/pg_dump/pg_backup_archiver.c
@@ -2466,7 +2466,6 @@ void
 WriteToc(ArchiveHandle *AH)
 {
 	TocEntry   *te;
-	char		workbuf[32];
 	int			tocCount;
 	int			i;
 
@@ -2490,11 +2489,8 @@ WriteToc(ArchiveHandle *AH)
 		WriteInt(AH, te->dumpId);
 		WriteInt(AH, te->dataDumper ? 1 : 0);
 
-		/* OID is recorded as a string for historical reasons */
-		sprintf(workbuf, "%u", te->catalogId.tableoid);
-		WriteStr(AH, workbuf);
-		sprintf(workbuf, "%u", te->catalogId.oid);
-		WriteStr(AH, workbuf);
+		WriteInt(AH, te->catalogId.tableoid);
+		WriteInt(AH, te->catalogId.oid);
 
 		WriteStr(AH, te->tag);
 		WriteStr(AH, te->desc);
@@ -2510,10 +2506,9 @@ WriteToc(ArchiveHandle *AH)
 		/* Dump list of dependencies */
 		for (i = 0; i < te->nDeps; i++)
 		{
-			sprintf(workbuf, "%d", te->dependencies[i]);
-			WriteStr(AH, workbuf);
+			WriteInt(AH, te->dependencies[i]);
 		}
-		WriteStr(AH, NULL);		/* Terminate List */
+		WriteInt(AH, -1);		/* Terminate List */
 
 		if (AH->WriteExtraTocPtr)
 			AH->WriteExtraTocPtr(AH, te);
@@ -2525,6 +2520,7 @@ ReadToc(ArchiveHandle *AH)
 {
 	int			i;
 	char	   *tmp;
+	int			depId;
 	DumpId	   *deps;
 	int			depIdx;
 	int			depSize;
@@ -2549,7 +2545,11 @@ ReadToc(ArchiveHandle *AH)
 
 		te->hadDumper = ReadInt(AH);
 
-		if (AH->version >= K_VERS_1_8)
+		if (AH->version >= K_VERS_1_16)
+		{
+			te->catalogId.tableoid = ReadInt(AH);
+		}
+		else if (AH->version >= K_VERS_1_8)
 		{
 			tmp = ReadStr(AH);
 			te->catalogId.tableoid = strtoul(tmp, NULL, 10);
@@ -2557,9 +2557,15 @@ ReadToc(ArchiveHandle *AH)
 		}
 		else
 			te->catalogId.tableoid = InvalidOid;
-		tmp = ReadStr(AH);
-		te->catalogId.oid = strtoul(tmp, NULL, 10);
-		free(tmp);
+
+		if (AH->version >= K_VERS_1_16)
+			te->catalogId.oid = ReadInt(AH);
+		else
+		{
+			tmp = ReadStr(AH);
+			te->catalogId.oid = strtoul(tmp, NULL, 10);
+			free(tmp);
+		}
 
 		te->tag = ReadStr(AH);
 		te->desc = ReadStr(AH);
@@ -2634,16 +2640,31 @@ ReadToc(ArchiveHandle *AH)
 			depIdx = 0;
 			for (;;)
 			{
-				tmp = ReadStr(AH);
-				if (!tmp)
-					break;		/* end of list */
-				if (depIdx >= depSize)
+				if (AH->version >= K_VERS_1_16)
 				{
-					depSize *= 2;
-					deps = (DumpId *) pg_realloc(deps, sizeof(DumpId) * depSize);
+					depId = ReadInt(AH);
+					if (depId == -1)
+						break;		/* end of list */
+					if (depIdx >= depSize)
+					{
+						depSize *= 2;
+						deps = (DumpId *) pg_realloc(deps, sizeof(DumpId) * depSize);
+					}
+					deps[depIdx] = depId;
+				}
+				else
+				{
+					tmp = ReadStr(AH);
+					if (!tmp)
+						break;		/* end of list */
+					if (depIdx >= depSize)
+					{
+						depSize *= 2;
+						deps = (DumpId *) pg_realloc(deps, sizeof(DumpId) * depSize);
+					}
+					deps[depIdx] = strtoul(tmp, NULL, 10);
+					free(tmp);
 				}
-				deps[depIdx] = strtoul(tmp, NULL, 10);
-				free(tmp);
 				depIdx++;
 			}
 
-- 
2.41.0


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