presto-main/src/main/java/io/prestosql/sql/analyzer/FeaturesConfig.java/FeaturesConfig/setSpillEnabled
class FeaturesConfig:    @Config(SPILL_ENABLED)
    @LegacyConfig("experimental.spill-enabled")
    public FeaturesConfig setSpillEnabled(boolean spillEnabled)
    {
        this.spillEnabled = spillEnabled;
        return this;
    }