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[TD-225]

This commit is contained in:
Haojun Liao 2020-11-10 10:32:43 +08:00
parent 909ca7edeb
commit 837701752c
1 changed files with 3 additions and 2 deletions
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5
src/tsdb/src/tsdbRead.c
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@ -2314,12 +2314,13 @@ void filterPrepare(void* expr, void* param) {
if (pInfo->optr == TSDB_RELATION_IN) { if (pInfo->optr == TSDB_RELATION_IN) {
pInfo->q = (char*) pCond->arr; pInfo->q = (char*) pCond->arr;
} else { } else if (pCond != NULL) {
uint32_t size = pCond->nLen * TSDB_NCHAR_SIZE; uint32_t size = pCond->nLen * TSDB_NCHAR_SIZE;
if (size < (uint32_t)pSchema->bytes) { if (size < (uint32_t)pSchema->bytes) {
size = pSchema->bytes; size = pSchema->bytes;
} }
pInfo->q = calloc(1, size + TSDB_NCHAR_SIZE); // to make sure tonchar does not cause invalid write, since the '\0' needs at least sizeof(wchar_t) space.
pInfo->q = calloc(1, size + TSDB_NCHAR_SIZE); // to make sure tonchar does not cause invalid write, since the '\0' needs at least sizeof(wchar_t) space.
tVariantDump(pCond, pInfo->q, pSchema->type, true); tVariantDump(pCond, pInfo->q, pSchema->type, true);
} }
} }