How to properly perform this?

Hi, ALL,
I'm trying to execute following query:

draft=# SELECT c.relname AS name, ixs.tablespace, ARRAY(SELECT
a.attname FROM pg_attribute a WHERE a.attrelid = idx.indrelid AND
a.attnum = ANY(idx.indkey) AND a.attnum > 0 ORDER BY
array_position(idx.indkey, a.attnum) OFFSET idx.indnkeyatts) AS
included, c.reloptions AS storage FROM pg_index idx, pg_class c,
pg_namespace n, pg_class t, pg_indexes ixs WHERE ixs.indexname =
c.relname AND c.oid = idx.indexrelid AND t.oid = idx.indrelid AND
n.oid = c.relnamespace AND idx.indisprimary AND n.nspname = 'public'
AND t.relname = 'leagues';
name | tablespace | included | storage
--------------+------------+----------+---------
leagues_pkey | | {} |
(1 row)

My code is as follows:

while( ( ret = SQLGetData( m_hstmt, 4, SQL_C_WCHAR,
index_param.get(), 255, &ind[3] ) ) != SQL_NO_DATA )
{
if( ret == SQL_SUCCESS || ret == SQL_SUCCESS_WITH_INFO )
{
auto numBytes = ind[3];
if( ind[3] == SQL_NO_TOTAL )
numBytes = 255;
else if( ind[3] > 255 )
numBytes = 255;
str_to_uc_cpy( options, index_param.get() );
}
else
{
GetErrorMessage( errorMsg, STMT_ERROR );
result = 1;
}
}
Unfortunately it goes into the loop because apparently the driver or
the server keeps seeing the last column as having data and returns
SQL_SUCCESS.

What is the proper way to resolve this?

I'm using unixODBC with PostgreSQL 16.

My odbc.ini looks like this:

[code]
[postgres]
Driver=Postgres
Description=Postgres ODBC Driver
UserId=postgres
Password=XXX
Servername=localhost
Database=draft
Port=5432

[/code]

What is the best way to proceed?

Thank you.