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add null pointer check

This commit is contained in:
dapan1121 2021-06-11 16:11:06 +08:00
parent 63d68915ba
commit d198dcbb88
1 changed files with 5 additions and 0 deletions
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5
src/client/src/tscPrepare.c
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@ -879,6 +879,11 @@ int taos_stmt_prepare(TAOS_STMT* stmt, const char* sql, unsigned long length) {
return TSDB_CODE_TSC_DISCONNECTED;
}
if (sql == NULL) {
tscError("sql is NULL");
return TSDB_CODE_TSC_APP_ERROR;
}
SSqlObj* pSql = pStmt->pSql;
size_t sqlLen = strlen(sql);