From 5d1c708ca629f54866a81e4629038582594c60bb Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Fri, 9 Jul 2021 17:18:01 +0800
Subject: [PATCH] [td-225]fix precision problem.

---
 src/client/src/tscSQLParser.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 5fceb0cca3..d2992583a0 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -8181,6 +8181,8 @@ static int32_t doLoadAllTableMeta(SSqlObj* pSql, SQueryInfo* pQueryInfo, SSqlNod
 }
 
 static STableMeta* extractTempTableMetaFromSubquery(SQueryInfo* pUpstream) {
+  STableMetaInfo* pUpstreamTableMetaInfo = tscGetMetaInfo(pUpstream, 0);
+
   int32_t numOfColumns = pUpstream->fieldsInfo.numOfOutput;
 
   STableMeta* meta = calloc(1, sizeof(STableMeta) + sizeof(SSchema) * numOfColumns);
@@ -8188,6 +8190,7 @@ static STableMeta* extractTempTableMetaFromSubquery(SQueryInfo* pUpstream) {
 
   STableComInfo *info = &meta->tableInfo;
   info->numOfColumns = numOfColumns;
+  info->precision = pUpstreamTableMetaInfo->pTableMeta->tableInfo.precision;
   info->numOfTags = 0;
 
   int32_t n = 0;