Fix foreign key sytnax bug, patch from Wes Griffin.
Fix foreign key sytnax bug, patch from Wes Griffin.

Distrotech/psqlodbc,hlinnaka/psqlodbc,treasure-data/prestogres-odbc,hlinnaka/psqlodbc,gavioto/psqlodbc,Distrotech/psqlodbc,gavioto/psqlodbc,hlinnaka/psqlodbc,treasure-data/prestogres-odbc,treasure-data/prestogres-odbc,Distrotech/psqlodbc,gavioto/psqlodbc