fix-dump-if-exists-on-public-schema.patch

diff --git a/src/bin/pg_dump/pg_backup_archiver.c b/src/bin/pg_dump/pg_backup_archiver.c
index 7f7a0f1ce7..ba5e6acbbb 100644
--- a/src/bin/pg_dump/pg_backup_archiver.c
+++ b/src/bin/pg_dump/pg_backup_archiver.c
@@ -538,9 +538,14 @@ RestoreArchive(Archive *AHX)
 				 */
 				if (*te->dropStmt != '\0')
 				{
-					if (!ropt->if_exists)
+					if (!ropt->if_exists ||
+						strncmp(te->dropStmt, "--", 2) == 0)
 					{
-						/* No --if-exists?	Then just use the original */
+						/*
+						 * Without --if-exists, or if it's just a comment (as
+						 * happens for the public schema), print the dropStmt
+						 * as-is.
+						 */
 						ahprintf(AH, "%s", te->dropStmt);
 					}
 					else