1 files changed, 69 insertions, 0 deletions
diff --git a/src/bin/pg_upgrade/dump.c b/src/bin/pg_upgrade/dump.c
new file mode 100644
index 0000000..90060d0
--- /dev/null
+++ b/src/bin/pg_upgrade/dump.c
@@ -0,0 +1,69 @@
+/*
+ *	dump.c
+ *
+ *	dump functions
+ *
+ *	Copyright (c) 2010-2021, PostgreSQL Global Development Group
+ *	src/bin/pg_upgrade/dump.c
+ */
+
+#include "postgres_fe.h"
+
+#include "fe_utils/string_utils.h"
+#include "pg_upgrade.h"
+
+void
+generate_old_dump(void)
+{
+	int			dbnum;
+
+	prep_status("Creating dump of global objects");
+
+	/* run new pg_dumpall binary for globals */
+	exec_prog(UTILITY_LOG_FILE, NULL, true, true,
+			  "\"%s/pg_dumpall\" %s --globals-only --quote-all-identifiers "
+			  "--binary-upgrade %s -f %s",
+			  new_cluster.bindir, cluster_conn_opts(&old_cluster),
+			  log_opts.verbose ? "--verbose" : "",
+			  GLOBALS_DUMP_FILE);
+	check_ok();
+
+	prep_status("Creating dump of database schemas\n");
+
+	/* create per-db dump files */
+	for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
+	{
+		char		sql_file_name[MAXPGPATH],
+					log_file_name[MAXPGPATH];
+		DbInfo	   *old_db = &old_cluster.dbarr.dbs[dbnum];
+		PQExpBufferData connstr,
+					escaped_connstr;
+
+		initPQExpBuffer(&connstr);
+		appendPQExpBufferStr(&connstr, "dbname=");
+		appendConnStrVal(&connstr, old_db->db_name);
+		initPQExpBuffer(&escaped_connstr);
+		appendShellString(&escaped_connstr, connstr.data);
+		termPQExpBuffer(&connstr);
+
+		pg_log(PG_STATUS, "%s", old_db->db_name);
+		snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
+		snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
+
+		parallel_exec_prog(log_file_name, NULL,
+						   "\"%s/pg_dump\" %s --schema-only --quote-all-identifiers "
+						   "--binary-upgrade --format=custom %s --file=\"%s\" %s",
+						   new_cluster.bindir, cluster_conn_opts(&old_cluster),
+						   log_opts.verbose ? "--verbose" : "",
+						   sql_file_name, escaped_connstr.data);
+
+		termPQExpBuffer(&escaped_connstr);
+	}
+
+	/* reap all children */
+	while (reap_child(true) == true)
+		;
+
+	end_progress_output();
+	check_ok();
+}