diff --git a/integration_tests/data/materializations/bigquery/data_incremental_expected.csv b/integration_tests/data/materializations/bigquery/data_incremental_expected.csv
index e90c4830..5bad3085 100644
--- a/integration_tests/data/materializations/bigquery/data_incremental_expected.csv
+++ b/integration_tests/data/materializations/bigquery/data_incremental_expected.csv
@@ -1,8 +1,8 @@
-id,start_tstamp
-1,2021-01-01 00:00:00
-1,2021-03-05 00:00:00
-2,2021-03-02 00:00:00
-2,2021-03-02 00:00:00
-3,2021-03-07 00:00:00
-4,2021-03-04 00:00:00
-5,2021-03-08 00:00:00
+id,id2,start_tstamp
+1,1,2021-01-01 00:00:00
+1,1,2021-03-05 00:00:00
+2,2,2021-03-02 00:00:00
+2,2,2021-03-02 00:00:00
+3,3,2021-03-07 00:00:00
+4,4,2021-03-04 00:00:00
+5,5,2021-03-08 00:00:00
diff --git a/integration_tests/data/materializations/data_incremental.csv b/integration_tests/data/materializations/data_incremental.csv
index d11ba2ba..851501be 100644
--- a/integration_tests/data/materializations/data_incremental.csv
+++ b/integration_tests/data/materializations/data_incremental.csv
@@ -1,10 +1,10 @@
-run,id,start_tstamp
-1,1,2021-01-01 00:00:00
-1,2,2021-03-01 00:00:00
-1,2,2021-03-03 00:00:00
-1,3,2021-03-03 00:00:00
-1,4,2021-03-04 00:00:00
-2,1,2021-03-05 00:00:00
-2,2,2021-03-02 00:00:00
-2,3,2021-03-07 00:00:00
-2,5,2021-03-08 00:00:00
+run,id,id2,start_tstamp
+1,1,1,2021-01-01 00:00:00
+1,2,2,2021-03-01 00:00:00
+1,2,2,2021-03-03 00:00:00
+1,3,3,2021-03-03 00:00:00
+1,4,4,2021-03-04 00:00:00
+2,1,1,2021-03-05 00:00:00
+2,2,2,2021-03-02 00:00:00
+2,3,3,2021-03-07 00:00:00
+2,5,5,2021-03-08 00:00:00
diff --git a/integration_tests/data/materializations/databricks/data_incremental_expected.csv b/integration_tests/data/materializations/databricks/data_incremental_expected.csv
index e90c4830..5bad3085 100644
--- a/integration_tests/data/materializations/databricks/data_incremental_expected.csv
+++ b/integration_tests/data/materializations/databricks/data_incremental_expected.csv
@@ -1,8 +1,8 @@
-id,start_tstamp
-1,2021-01-01 00:00:00
-1,2021-03-05 00:00:00
-2,2021-03-02 00:00:00
-2,2021-03-02 00:00:00
-3,2021-03-07 00:00:00
-4,2021-03-04 00:00:00
-5,2021-03-08 00:00:00
+id,id2,start_tstamp
+1,1,2021-01-01 00:00:00
+1,1,2021-03-05 00:00:00
+2,2,2021-03-02 00:00:00
+2,2,2021-03-02 00:00:00
+3,3,2021-03-07 00:00:00
+4,4,2021-03-04 00:00:00
+5,5,2021-03-08 00:00:00
diff --git a/integration_tests/data/materializations/default/data_incremental_expected.csv b/integration_tests/data/materializations/default/data_incremental_expected.csv
index d350319d..2c1eb458 100644
--- a/integration_tests/data/materializations/default/data_incremental_expected.csv
+++ b/integration_tests/data/materializations/default/data_incremental_expected.csv
@@ -1,7 +1,7 @@
-id,start_tstamp
-1,2021-01-01 00:00:00
-4,2021-03-04 00:00:00
-5,2021-03-08 00:00:00
-1,2021-03-05 00:00:00
-2,2021-03-02 00:00:00
-3,2021-03-07 00:00:00
+id,id2,start_tstamp
+1,1,2021-01-01 00:00:00
+4,4,2021-03-04 00:00:00
+5,5,2021-03-08 00:00:00
+1,1,2021-03-05 00:00:00
+2,2,2021-03-02 00:00:00
+3,3,2021-03-07 00:00:00
diff --git a/integration_tests/data/materializations/snowflake/data_incremental_expected.csv b/integration_tests/data/materializations/snowflake/data_incremental_expected.csv
index 1fa3b843..3173b9b6 100644
--- a/integration_tests/data/materializations/snowflake/data_incremental_expected.csv
+++ b/integration_tests/data/materializations/snowflake/data_incremental_expected.csv
@@ -1,7 +1,7 @@
-id,start_tstamp
-1,2021-01-01 00:00:00
-1,2021-03-05 00:00:00
-2,2021-03-02 00:00:00
-3,2021-03-07 00:00:00
-4,2021-03-04 00:00:00
-5,2021-03-08 00:00:00
+id,id2,start_tstamp
+1,1,2021-01-01 00:00:00
+1,1,2021-03-05 00:00:00
+2,2,2021-03-02 00:00:00
+3,3,2021-03-07 00:00:00
+4,4,2021-03-04 00:00:00
+5,5,2021-03-08 00:00:00
diff --git a/integration_tests/models/materializations/default_strategy/test_incremental.sql b/integration_tests/models/materializations/default_strategy/test_incremental.sql
index 01ff137f..9b08b3dc 100644
--- a/integration_tests/models/materializations/default_strategy/test_incremental.sql
+++ b/integration_tests/models/materializations/default_strategy/test_incremental.sql
@@ -12,7 +12,7 @@ You may obtain a copy of the Snowplow Personal and Academic License Version 1.0
 {{
   config(
     materialized='incremental',
-    unique_key='id',
+    unique_key=['id', 'id2'],
     upsert_date_key='start_tstamp',
     partition_by = snowplow_utils.get_value_by_target_type(bigquery_val={
       "field": "start_tstamp",
@@ -36,6 +36,7 @@ with data as (
 
   select
     id,
+    id2,
     start_tstamp
 
   from data
@@ -45,6 +46,7 @@ with data as (
 
   select
     id,
+    id2,
     start_tstamp
 
   from data
diff --git a/integration_tests/models/materializations/snowflake_delete_insert/test_incremental_delete_insert.sql b/integration_tests/models/materializations/snowflake_delete_insert/test_incremental_delete_insert.sql
index 3c55c04c..d405d09b 100644
--- a/integration_tests/models/materializations/snowflake_delete_insert/test_incremental_delete_insert.sql
+++ b/integration_tests/models/materializations/snowflake_delete_insert/test_incremental_delete_insert.sql
@@ -13,7 +13,7 @@ You may obtain a copy of the Snowplow Personal and Academic License Version 1.0
   config(
     materialized='incremental',
     incremental_strategy='delete+insert',
-    unique_key='id',
+    unique_key=['id', 'id2'],
     upsert_date_key='start_tstamp',
     tags=["requires_script"],
     snowplow_optimize=true
@@ -28,6 +28,7 @@ with data as (
 
   select
     id,
+    id2,
     start_tstamp
 
   from data
@@ -37,6 +38,7 @@ with data as (
 
   select
     id,
+    id2,
     start_tstamp
 
   from data
diff --git a/macros/materializations/base_incremental/common/get_merge_sql.sql b/macros/materializations/base_incremental/common/get_merge_sql.sql
index 33689e93..23145616 100644
--- a/macros/materializations/base_incremental/common/get_merge_sql.sql
+++ b/macros/materializations/base_incremental/common/get_merge_sql.sql
@@ -99,7 +99,7 @@ You may obtain a copy of the Snowplow Personal and Academic License Version 1.0
         {% set lower_limit, upper_limit = limits[0], limits[1] %}
         -- use those calculated min + max values to limit 'target' scan, to only the days with new data
         {% set predicate_override %}
-            {{ date_column }} between '{{ lower_limit }}' and '{{ upper_limit }}'
+            {{target_tb}}.{{ date_column }} between '{{ lower_limit }}' and '{{ upper_limit }}'
         {% endset %}
     {% endif %}
     {# Combine predicates with user provided ones #}