fixes

Signed-off-by: Robert Kruszewski <github@robertk.io>

Author: robert3005

vortex-test/compat-gen/src/fixtures/arrays/synthetic/encodings/dict.rs

@@ -16,6 +16,7 @@ use vortex::array::session::ArraySession;
 use vortex::array::validity::Validity;
 use vortex::error::VortexResult;
 use vortex::session::VortexSession;
+use vortex_array::aggregate_fn::session::AggregateFnSession;
 
 use super::N;
 use crate::fixtures::FlatLayoutFixture;
@@ -87,6 +88,7 @@ impl FlatLayoutFixture for DictFixture {
             .collect();
         let insertion_ordered_col = VarBinArray::from_strs(insertion_ordered);
         let mut ctx = VortexSession::empty()
+            .with::<AggregateFnSession>()
             .with::<ArraySession>()
             .create_execution_ctx();