From b04048091f115fba76db79e69d74e9640d2e31bb Mon Sep 17 00:00:00 2001
From: shenglian zhou <slzhou@taosdata.com>
Date: Fri, 23 Jul 2021 15:53:15 +0800
Subject: [PATCH] [TD-5484]<fix>:fix tag column modify total length check that
 checked columns instead of tags

---
 src/client/src/tscParseLineProtocol.c | 1 +
 src/client/src/tscSQLParser.c         | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/client/src/tscParseLineProtocol.c b/src/client/src/tscParseLineProtocol.c
index 98d9c3ec65..e0aa2b4327 100644
--- a/src/client/src/tscParseLineProtocol.c
+++ b/src/client/src/tscParseLineProtocol.c
@@ -1824,6 +1824,7 @@ int taos_insert_lines(TAOS* taos, char* lines[], int numLines) {
 cleanup:
   tscDebug("taos_insert_lines finish inserting %d lines. code: %d", numLines, code);
   points = TARRAY_GET_START(lpPoints);
+  numPoints = taosArrayGetSize(lpPoints);
   for (int i=0; i<numPoints; ++i) {
     destroySmlDataPoint(points+i);
   }
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 5bd981d379..39b1a5e8d3 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -6066,11 +6066,11 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
       return invalidOperationMsg(pMsg, msg22);
     }
 
-    SSchema* pSchema = (SSchema*) pTableMetaInfo->pTableMeta->schema;
-    int16_t numOfColumns = pTableMetaInfo->pTableMeta->tableInfo.numOfColumns;
+    SSchema* pSchema = tscGetTableTagSchema(pTableMetaInfo->pTableMeta);
+    int16_t numOfTags = tscGetNumOfTags(pTableMetaInfo->pTableMeta);
     int16_t i;
     uint32_t nLen = 0;
-    for (i = 0; i < numOfColumns; ++i) {
+    for (i = 0; i < numOfTags; ++i) {
       nLen += pSchema[i].colId != columnIndex.columnIndex ? pSchema[i].bytes : pItem->bytes;
     }
     if (nLen >= TSDB_MAX_TAGS_LEN) {
-- 
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