Re: Fwd: Carto ODBC_FDW issue "ERROR: Connecting to driver" from PG to DB2

On 04/11/2018 11:22 AM, karthik kumar wrote:
> Hello Adrian
>
> I built fdw with debug option and ran it with debug option.  Here is the
> output
>
> postgres=# select * from odbc_testt;
> DEBUG:  StartTransactionCommand
> DEBUG:  StartTransaction
> DEBUG:  name: unnamed; blockState:       DEFAULT; state: INPROGR,
> xid/subid/cid: 0/1/0, nestlvl: 1, children:
> DEBUG:  odbcGetForeignRelSize
> DEBUG:  odbcGetTableOptions
> DEBUG:  odbcGetOptions
> DEBUG:  extract_odbcFdwOptions
> DEBUG:  CONN STR: database=SAMPLE;DRIVER=SAMPLE;UID=db2inst1;PWD=db2inst1
> DEBUG:  Error result (-1): Connecting to driver
> ERROR:  Connecting to driver
>
> Looking at the code this is the place where the error is coming from:
>
> /* Allocate a connection handle */
>     SQLAllocHandle(SQL_HANDLE_DBC, *env, dbc);
>     /* Connect to the DSN */
>     ret = SQLDriverConnect(*dbc, NULL, (SQLCHAR *) conn_str.data, SQL_NTS,
>                            OutConnStr, 1024, &OutConnStrLen,
> SQL_DRIVER_COMPLETE);
>     check_return(ret, "Connecting to driver", dbc, SQL_HANDLE_DBC);
> }
>
> Trouble is, I can't get any unixodbc manual to indicate the meaning of -1.
>

Per Steven's suggestion:

https://docs.microsoft.com/en-us/sql/connect/odbc/linux-mac/data-access-tracing-with-the-odbc-driver-on-linux

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com