Prevent setting a connstrout value when the max length is set to zero.
Prevent setting a connstrout value when the max length is set to zero.

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