WIP

Author: habedi

test/sql/test_decimal_features.test

@@ -1,7 +1,10 @@
 # name: test/sql/test_decimal_features.test
 # group: [infera]
 
-# Validate DECIMAL feature inputs work (via implicit cast) and return correct results
+# Validate DECIMAL feature inputs work and return correct results.
+# Note: bare DECIMAL literals (DECIMAL '1.0') have no precision/scale in DuckDB main
+# and resolve to PhysicalType::INVALID, which crashes Vector initialization. Use
+# explicit precision (::DECIMAL(10,2)) so the type has a valid physical representation.
 
 statement ok
 pragma enable_verification
@@ -12,9 +15,9 @@ load 'build/release/extension/infera/infera.duckdb_extension'
 statement ok
 select infera_load_model('linear_dec', 'test/models/linear.onnx')
 
-# Use DECIMAL features; expected y = 2*1 - 1*2 + 0.5*3 + 0.25 = 1.75
+# Use DECIMAL(10,2) features; expected y = 2*1 - 1*2 + 0.5*3 + 0.25 = 1.75
 query I
-select abs(infera_predict('linear_dec', DECIMAL '1.0', DECIMAL '2.0', DECIMAL '3.0') - 1.75) < 1e-5
+select abs(infera_predict('linear_dec', 1.0::DECIMAL(10,2), 2.0::DECIMAL(10,2), 3.0::DECIMAL(10,2)) - 1.75) < 1e-5
 ----
 true