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[TD-591]fix alter table tag value bugs

This commit is contained in:
liu0x54 2020-06-15 07:44:22 +00:00
parent 60050e5294
commit e0754a90e3
2 changed files with 6 additions and 4 deletions
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2
src/client/src/tscSQLParser.c
View File

@ -4479,7 +4479,7 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
if (pTagsSchema->type != TSDB_DATA_TYPE_BINARY && pTagsSchema->type != TSDB_DATA_TYPE_NCHAR) {
len = tDataTypeDesc[pTagsSchema->type].nSize;
} else {
len = varDataLen(pUpdateMsg->data);
len = varDataTLen(pUpdateMsg->data);
}
pUpdateMsg->tagValLen = htonl(len); // length may be changed after dump data

8
src/query/src/tvariant.c
View File

@ -800,12 +800,13 @@ int32_t tVariantDump(tVariant *pVariant, char *payload, int16_t type, bool inclu
break;
}
case TSDB_DATA_TYPE_NCHAR: {
int32_t newlen = 0;
if (!includeLengthPrefix) {
if (pVariant->nType == TSDB_DATA_TYPE_NULL) {
*(uint32_t *)payload = TSDB_DATA_NCHAR_NULL;
} else {
if (pVariant->nType != TSDB_DATA_TYPE_NCHAR) {
toNchar(pVariant, &payload, &pVariant->nLen);
toNchar(pVariant, &payload, &newlen);
} else {
wcsncpy((wchar_t *)payload, pVariant->wpz, pVariant->nLen);
}
@ -817,12 +818,13 @@ int32_t tVariantDump(tVariant *pVariant, char *payload, int16_t type, bool inclu
char *p = varDataVal(payload);
if (pVariant->nType != TSDB_DATA_TYPE_NCHAR) {
toNchar(pVariant, &p, &pVariant->nLen);
toNchar(pVariant, &p, &newlen);
} else {
wcsncpy((wchar_t *)p, pVariant->wpz, pVariant->nLen);
newlen = pVariant->nLen;
}
varDataSetLen(payload, pVariant->nLen); // the length may be changed after toNchar function called
varDataSetLen(payload, newlen); // the length may be changed after toNchar function called
assert(p == varDataVal(payload));
}
}