Cargo Features

[dependencies]
odbc-sys = { version = "0.24.0", default-features = false, features = ["iodbc", "odbc_version_3_50", "odbc_version_3_80", "odbc_version_4"] }
default = odbc_version_3_80

The odbc_version_3_80 feature is set by default whenever odbc-sys is added without default-features = false somewhere in the dependency tree.

static iodbc
odbc_version_3_50 odbc_version_3_80
odbc_version_3_80 default odbc_version_4? = odbc_version_3_50

Affects functions::SQLCompleteAsync

odbc_version_4 = odbc_version_3_80