Event data properties refactor and design

db/clickhouse/schema.sql

@@ -305,4 +305,42 @@ CREATE TABLE umami.session_replay
 ENGINE = MergeTree()
 PARTITION BY toYYYYMM(created_at)
 ORDER BY (replay_id, website_id, session_id, visit_id, chunk_index)
-SETTINGS index_granularity = 8192;
+SETTINGS index_granularity = 8192;
+
+-- Create event_data_pivot
+CREATE TABLE IF NOT EXISTS umami.event_data_pivot
+(
+    website_id      UUID,
+    session_id      UUID,
+    event_id        UUID,
+    event_name      LowCardinality(String),
+    url_path        String,
+    created_at      DateTime('UTC'),
+    property_keys   AggregateFunction(groupArray, String),
+    property_values AggregateFunction(groupArray, String),
+    property_types  AggregateFunction(groupArray, UInt32)
+)
+ENGINE = AggregatingMergeTree()
+PARTITION BY toYYYYMM(created_at)
+ORDER BY (website_id, event_name, created_at, event_id)
+SETTINGS index_granularity = 8192;
+
+CREATE MATERIALIZED VIEW IF NOT EXISTS umami.event_data_pivot_mv
+TO umami.event_data_pivot
+AS SELECT
+    website_id,
+    session_id,
+    event_id,
+    event_name,
+    url_path,
+    created_at,
+    groupArrayState(data_key) AS property_keys,
+    groupArrayState(multiIf(
+        data_type = 1, ifNull(string_value, ''),
+        data_type = 2, toString(ifNull(number_value, 0)),
+        data_type = 4, toString(ifNull(date_value, toDateTime(0))),
+        ''
+    )) AS property_values,
+    groupArrayState(data_type) AS property_types
+FROM umami.event_data
+GROUP BY website_id, session_id, event_id, event_name, url_path, created_at;