[jira] [Created] (TRAFODION-2725) SQL types are REAL, FLOAT, and DOUBLE. Some values are inserted, a stack overflow occurs when SQLGetData is executed.

["苏锦佩 (JIRA)" <ji...@apache.org>]

苏锦佩 created TRAFODION-2725:
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             Summary: SQL types are REAL, FLOAT, and DOUBLE. Some values are inserted, a stack overflow occurs when SQLGetData is executed.
                 Key: TRAFODION-2725
                 URL: https://issues.apache.org/jira/browse/TRAFODION-2725
             Project: Apache Trafodion
          Issue Type: Bug
          Components: client-odbc-windows
    Affects Versions: 2.2-incubating
            Reporter: 苏锦佩
             Fix For: 2.2-incubating


The inserted value is -2.22507e-308, and the SQLGetData receive buffer is greater than 256，when the double column data is fetched, the program sends a crash.
example:
TCHAR tempbuf[256] = {0};
SQLExecDirect(hstmt, (SQLTCHAR*)"CREATE TABLE TB_DOUBLE (ID INT, C DOUBLE PRECISION)", SQL_NTS);
SQLExecDirect(hstmt, (SQLTCHAR*)"INSERT INTO TB_DOUBLE VALUES (1,-2.22507e-308)", SQL_NTS);
SQLExecDirect(hstmt, (SQLTCHAR*)"SELECT * FROM TB_DOUBLE", SQL_NTS);
SQLNumResultCols(hstmt, &numOfCols);
SQLFetch(hstmt);
for(i = 1; i <= numOfCols; i++){
SQLGetData(hstmt,(SWORD)i,SQL_C_CHAR,tempbuf,sizeof(tempbuf),&len);
｝



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