diff --git a/ee/scripts/schema/db/init_dbs/clickhouse/1.23.0/1.23.0.sql b/ee/scripts/schema/db/init_dbs/clickhouse/1.23.0/1.23.0.sql
index 953c86662..fea95d46b 100644
--- a/ee/scripts/schema/db/init_dbs/clickhouse/1.23.0/1.23.0.sql
+++ b/ee/scripts/schema/db/init_dbs/clickhouse/1.23.0/1.23.0.sql
@@ -1,3 +1,16 @@
+SELECT 1
+FROM (SELECT throwIf(platform = 'ios', 'IOS sessions found')
+      FROM experimental.sessions) AS raw
+LIMIT 1;
+
+SELECT 1
+FROM (SELECT throwIf(platform = 'android', 'Android sessions found')
+      FROM experimental.sessions) AS raw
+LIMIT 1;
+
+ALTER TABLE experimental.sessions
+    MODIFY COLUMN platform Enum8('web'=1,'mobile'=2) DEFAULT 'web';
+
 CREATE OR REPLACE FUNCTION openreplay_version AS() -> 'v1.23.0-ee';
 
 DROP TABLE IF EXISTS product_analytics.all_events;
diff --git a/ee/scripts/schema/db/init_dbs/clickhouse/create/init_schema.sql b/ee/scripts/schema/db/init_dbs/clickhouse/create/init_schema.sql
index 2a892ea5d..7d1a9559a 100644
--- a/ee/scripts/schema/db/init_dbs/clickhouse/create/init_schema.sql
+++ b/ee/scripts/schema/db/init_dbs/clickhouse/create/init_schema.sql
@@ -134,7 +134,7 @@ CREATE TABLE IF NOT EXISTS experimental.sessions
     metadata_8           Nullable(String),
     metadata_9           Nullable(String),
     metadata_10          Nullable(String),
-    _timestamp           DateTime                           DEFAULT now()
+    _timestamp           DateTime                  DEFAULT now()
 ) ENGINE = ReplacingMergeTree(_timestamp)
       PARTITION BY toYYYYMMDD(datetime)
       ORDER BY (project_id, datetime, session_id)
@@ -791,8 +791,7 @@ CREATE TABLE IF NOT EXISTS product_analytics.property_values_samples
     ENGINE = ReplacingMergeTree(_timestamp)
         ORDER BY (project_id, property_name, is_event_property);
 -- Incremental materialized view to get random examples of property values using $properties & properties
-CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.property_values_sampler_mv
-    REFRESH EVERY 30 HOUR TO product_analytics.property_values_samples AS
+CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.property_values_sampler_mvREFRESHEVERY30HOURTOproduct_analytics.property_values_samples AS
 SELECT project_id,
        property_name,
        TRUE                                                      AS is_event_property,
@@ -843,8 +842,7 @@ CREATE TABLE IF NOT EXISTS product_analytics.autocomplete_events_grouped
       ORDER BY (project_id, value)
       TTL _timestamp + INTERVAL 1 MONTH;
 
-CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.autocomplete_events_grouped_mv
-    REFRESH EVERY 30 MINUTE TO product_analytics.autocomplete_events_grouped AS
+CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.autocomplete_events_grouped_mvREFRESHEVERY30MINUTETOproduct_analytics.autocomplete_events_grouped AS
 SELECT project_id,
        value,
        count(1)        AS data_count,
@@ -873,7 +871,8 @@ SELECT project_id,
        _timestamp
 FROM product_analytics.events
          ARRAY JOIN JSONExtractKeys(toString(`$properties`)) as property_name
-WHERE length(value) > 0 AND isNull(toFloat64OrNull(value))
+WHERE length(value) > 0
+  AND isNull(toFloat64OrNull(value))
   AND _timestamp > now() - INTERVAL 1 MONTH;
 
 
@@ -889,8 +888,7 @@ CREATE TABLE IF NOT EXISTS product_analytics.autocomplete_event_properties_group
       ORDER BY (project_id, event_name, property_name, value)
       TTL _timestamp + INTERVAL 1 MONTH;
 
-CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.autocomplete_event_properties_grouped_mv
-    REFRESH EVERY 30 MINUTE TO product_analytics.autocomplete_event_properties_grouped AS
+CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.autocomplete_event_properties_grouped_mvREFRESHEVERY30MINUTETOproduct_analytics.autocomplete_event_properties_grouped AS
 SELECT project_id,
        event_name,
        property_name,
diff --git a/scripts/schema/db/init_dbs/clickhouse/1.23.0/1.23.0.sql b/scripts/schema/db/init_dbs/clickhouse/1.23.0/1.23.0.sql
index d8472807d..50dd204bb 100644
--- a/scripts/schema/db/init_dbs/clickhouse/1.23.0/1.23.0.sql
+++ b/scripts/schema/db/init_dbs/clickhouse/1.23.0/1.23.0.sql
@@ -1,3 +1,16 @@
+SELECT 1
+FROM (SELECT throwIf(platform = 'ios', 'IOS sessions found')
+      FROM experimental.sessions) AS raw
+LIMIT 1;
+
+SELECT 1
+FROM (SELECT throwIf(platform = 'android', 'Android sessions found')
+      FROM experimental.sessions) AS raw
+LIMIT 1;
+
+ALTER TABLE experimental.sessions
+    MODIFY COLUMN platform Enum8('web'=1,'mobile'=2) DEFAULT 'web';
+
 CREATE OR REPLACE FUNCTION openreplay_version AS() -> 'v1.23.0';
 
 
@@ -155,8 +168,7 @@ CREATE TABLE IF NOT EXISTS product_analytics.property_values_samples
     ENGINE = ReplacingMergeTree(_timestamp)
         ORDER BY (project_id, property_name, is_event_property);
 
-CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.property_values_sampler_mv
-    REFRESH EVERY 30 HOUR TO product_analytics.property_values_samples AS
+CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.property_values_sampler_mvREFRESHEVERY30HOURTOproduct_analytics.property_values_samples AS
 SELECT project_id,
        property_name,
        TRUE                                                      AS is_event_property,
@@ -207,8 +219,7 @@ CREATE TABLE IF NOT EXISTS product_analytics.autocomplete_events_grouped
       ORDER BY (project_id, value)
       TTL _timestamp + INTERVAL 1 MONTH;
 
-CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.autocomplete_events_grouped_mv
-    REFRESH EVERY 30 MINUTE TO product_analytics.autocomplete_events_grouped AS
+CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.autocomplete_events_grouped_mvREFRESHEVERY30MINUTETOproduct_analytics.autocomplete_events_grouped AS
 SELECT project_id,
        value,
        count(1)        AS data_count,
@@ -237,7 +248,8 @@ SELECT project_id,
        _timestamp
 FROM product_analytics.events
          ARRAY JOIN JSONExtractKeys(toString(`$properties`)) as property_name
-WHERE length(value) > 0 AND isNull(toFloat64OrNull(value))
+WHERE length(value) > 0
+  AND isNull(toFloat64OrNull(value))
   AND _timestamp > now() - INTERVAL 1 MONTH;
 
 
@@ -253,8 +265,7 @@ CREATE TABLE IF NOT EXISTS product_analytics.autocomplete_event_properties_group
       ORDER BY (project_id, event_name, property_name, value)
       TTL _timestamp + INTERVAL 1 MONTH;
 
-CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.autocomplete_event_properties_grouped_mv
-    REFRESH EVERY 30 MINUTE TO product_analytics.autocomplete_event_properties_grouped AS
+CREATE MATERIALIZED VIEW IF NOT EXISTS product_analytics.autocomplete_event_properties_grouped_mvREFRESHEVERY30MINUTETOproduct_analytics.autocomplete_event_properties_grouped AS
 SELECT project_id,
        event_name,
        property_name,