1 files changed, 63 insertions, 0 deletions
diff --git a/src/backend/access/rmgrdesc/dbasedesc.c b/src/backend/access/rmgrdesc/dbasedesc.c
new file mode 100644
index 0000000..2660984
--- /dev/null
+++ b/src/backend/access/rmgrdesc/dbasedesc.c
@@ -0,0 +1,63 @@
+/*-------------------------------------------------------------------------
+ *
+ * dbasedesc.c
+ *	  rmgr descriptor routines for commands/dbcommands.c
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *	  src/backend/access/rmgrdesc/dbasedesc.c
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "postgres.h"
+
+#include "commands/dbcommands_xlog.h"
+#include "lib/stringinfo.h"
+
+
+void
+dbase_desc(StringInfo buf, XLogReaderState *record)
+{
+	char	   *rec = XLogRecGetData(record);
+	uint8		info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
+
+	if (info == XLOG_DBASE_CREATE)
+	{
+		xl_dbase_create_rec *xlrec = (xl_dbase_create_rec *) rec;
+
+		appendStringInfo(buf, "copy dir %u/%u to %u/%u",
+						 xlrec->src_tablespace_id, xlrec->src_db_id,
+						 xlrec->tablespace_id, xlrec->db_id);
+	}
+	else if (info == XLOG_DBASE_DROP)
+	{
+		xl_dbase_drop_rec *xlrec = (xl_dbase_drop_rec *) rec;
+		int			i;
+
+		appendStringInfoString(buf, "dir");
+		for (i = 0; i < xlrec->ntablespaces; i++)
+			appendStringInfo(buf, " %u/%u",
+							 xlrec->tablespace_ids[i], xlrec->db_id);
+	}
+}
+
+const char *
+dbase_identify(uint8 info)
+{
+	const char *id = NULL;
+
+	switch (info & ~XLR_INFO_MASK)
+	{
+		case XLOG_DBASE_CREATE:
+			id = "CREATE";
+			break;
+		case XLOG_DBASE_DROP:
+			id = "DROP";
+			break;
+	}
+
+	return id;
+}