From 613c31fcf3866dcdb996727cea29e68ac20121e1 Mon Sep 17 00:00:00 2001
From: YuQing <384681@qq.com>
Date: Mon, 18 Apr 2022 08:59:07 +0800
Subject: [PATCH] sf_binlog_writer_change_order_by check if versioned writer

---
 src/sf_binlog_writer.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/sf_binlog_writer.c b/src/sf_binlog_writer.c
index a0d0bed..bd25949 100644
--- a/src/sf_binlog_writer.c
+++ b/src/sf_binlog_writer.c
@@ -471,6 +471,15 @@ int sf_binlog_writer_change_order_by(SFBinlogWriterInfo *writer,
         return EINVAL;
     }
 
+    if (order_by == SF_BINLOG_WRITER_TYPE_ORDER_BY_VERSION) {
+        if (writer->version_ctx.ring.slots == NULL) {
+            logError("file: "__FILE__", line: %d, "
+                    "the writer is NOT versioned writer, can't "
+                    "set order by to %d!", __LINE__, order_by);
+            return EINVAL;
+        }
+    }
+
     if ((buffer=sf_binlog_writer_alloc_versioned_buffer_ex(writer, order_by,
                     order_by, SF_BINLOG_BUFFER_TYPE_CHANGE_ORDER_TYPE)) == NULL)
     {