SDDPG - PostgreSQL SDD driver, APPEND BLANK Segmentation fault 

Error can be reproduced with test_append_blank.prg (link with unmodified libsddpg.a):

https://github.com/hernad/harbour_core/blob/1fa4f85fe740cb767d883f223bed6755a285ad8f/contrib/sddpg/tests/test_append_blank.prg#L42