From a470a3ff180e18adc97a3d33bf7ea7effd6cbc40 Mon Sep 17 00:00:00 2001
From: wangmm0220 <wangmm0220@gmail.com>
Date: Thu, 28 Oct 2021 19:47:11 +0800
Subject: [PATCH] support join for json tag

---
 src/query/src/qTsbuf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/query/src/qTsbuf.c b/src/query/src/qTsbuf.c
index f2e7a28369..38e88ad690 100644
--- a/src/query/src/qTsbuf.c
+++ b/src/query/src/qTsbuf.c
@@ -267,7 +267,8 @@ static void writeDataToDisk(STSBuf* pTSBuf) {
   metaLen += (int32_t)fwrite(&pBlock->tag.nType, 1, sizeof(pBlock->tag.nType), pTSBuf->f);
 
   int32_t trueLen = pBlock->tag.nLen;
-  if (pBlock->tag.nType == TSDB_DATA_TYPE_BINARY || pBlock->tag.nType == TSDB_DATA_TYPE_NCHAR) {
+  if (pBlock->tag.nType == TSDB_DATA_TYPE_BINARY || pBlock->tag.nType == TSDB_DATA_TYPE_NCHAR ||
+      pBlock->tag.nType == TSDB_DATA_TYPE_JSON) {
     metaLen += (int32_t)fwrite(&pBlock->tag.nLen, 1, sizeof(pBlock->tag.nLen), pTSBuf->f);
     metaLen += (int32_t)fwrite(pBlock->tag.pz, 1, (size_t)pBlock->tag.nLen, pTSBuf->f);
   } else if (pBlock->tag.nType == TSDB_DATA_TYPE_FLOAT) {
-- 
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