Github user xwq commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/430#discussion_r59959894
--- Diff: core/conn/jdbc_type2/native/SqlInterface.cpp ---
@@ -246,10 +246,14 @@ SQLRETURN GetJDBCValues( SQLItemDesc_def *SQLItemDesc,
SQLItemDesc->signType = TRUE;
break;
case SQLTYPECODE_DATETIME:
+ // Calculate the length based on YYYY/MM/DD HH:MM:SS.ffffff
+ SQLItemDesc->maxLen = 20 + 6;
--- End diff --
The issue is not about getMemoryAllocInfo here. Since the maxLen is hard
code to 26, so the length of the memory is always enough.
When use MT-DCS, the maxLen will be passed to driver side. ODBC driver will
check if the maxLen is equal to the real length of the value, for example , the
maxLen of DATE should be 10.
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