Yicong-Huang commented on code in PR #5967:
URL: https://github.com/apache/texera/pull/5967#discussion_r3488362169


##########
sql/updates/26.sql:
##########
@@ -0,0 +1,47 @@
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--   http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing,
+-- software distributed under the License is distributed on an
+-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+-- KIND, either express or implied.  See the License for the
+-- specific language governing permissions and limitations
+-- under the License.
+
+-- ============================================
+-- 1. Connect to the texera_db database
+-- ============================================
+\c texera_db
+
+SET search_path TO texera_db;
+
+-- ============================================
+-- 2. Add the operator_port_cache table
+-- ============================================
+BEGIN;
+
+-- Caches a materialized output port result across executions, keyed by the 
cache
+-- key (a SHA-256 hash of the upstream sub-DAG). cache_key_json holds the JSON
+-- the cache key is computed from.
+CREATE TABLE IF NOT EXISTS operator_port_cache
+(
+    workflow_id         INT NOT NULL,
+    global_port_id      VARCHAR(200) NOT NULL,
+    cache_key           CHAR(64) NOT NULL,
+    cache_key_json      TEXT NOT NULL,
+    result_uri          TEXT NOT NULL,

Review Comment:
   please change  to `storage_uri`. `result` indicates direction. 



##########
sql/updates/26.sql:
##########
@@ -0,0 +1,47 @@
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--   http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing,
+-- software distributed under the License is distributed on an
+-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+-- KIND, either express or implied.  See the License for the
+-- specific language governing permissions and limitations
+-- under the License.
+
+-- ============================================
+-- 1. Connect to the texera_db database
+-- ============================================
+\c texera_db
+
+SET search_path TO texera_db;
+
+-- ============================================
+-- 2. Add the operator_port_cache table
+-- ============================================
+BEGIN;
+
+-- Caches a materialized output port result across executions, keyed by the 
cache
+-- key (a SHA-256 hash of the upstream sub-DAG). cache_key_json holds the JSON
+-- the cache key is computed from.
+CREATE TABLE IF NOT EXISTS operator_port_cache
+(
+    workflow_id         INT NOT NULL,
+    global_port_id      VARCHAR(200) NOT NULL,
+    cache_key           CHAR(64) NOT NULL,
+    cache_key_json      TEXT NOT NULL,

Review Comment:
   why do we have two parts?



##########
sql/texera_ddl.sql:
##########
@@ -371,6 +372,24 @@ CREATE TABLE operator_port_executions
     FOREIGN KEY (workflow_execution_id) REFERENCES workflow_executions(eid) ON 
DELETE CASCADE
 );
 
+-- operator_port_cache
+-- Caches a materialized output port result across executions, keyed by the 
cache
+-- key (a SHA-256 hash of the upstream sub-DAG). cache_key_json holds the JSON
+-- the cache key is computed from.
+CREATE TABLE operator_port_cache
+(
+    workflow_id         INT NOT NULL,
+    global_port_id      VARCHAR(200) NOT NULL,
+    cache_key           CHAR(64) NOT NULL,
+    cache_key_json      TEXT NOT NULL,
+    result_uri          TEXT NOT NULL,
+    tuple_count         BIGINT,
+    source_execution_id BIGINT,
+    updated_at          TIMESTAMPTZ NOT NULL DEFAULT now(),
+    PRIMARY KEY (workflow_id, global_port_id, cache_key),

Review Comment:
   how come execution id is not part of primary key?



##########
sql/updates/26.sql:
##########
@@ -0,0 +1,47 @@
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--   http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing,
+-- software distributed under the License is distributed on an
+-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+-- KIND, either express or implied.  See the License for the
+-- specific language governing permissions and limitations
+-- under the License.
+
+-- ============================================
+-- 1. Connect to the texera_db database
+-- ============================================
+\c texera_db
+
+SET search_path TO texera_db;
+
+-- ============================================
+-- 2. Add the operator_port_cache table
+-- ============================================
+BEGIN;
+
+-- Caches a materialized output port result across executions, keyed by the 
cache
+-- key (a SHA-256 hash of the upstream sub-DAG). cache_key_json holds the JSON
+-- the cache key is computed from.
+CREATE TABLE IF NOT EXISTS operator_port_cache
+(
+    workflow_id         INT NOT NULL,
+    global_port_id      VARCHAR(200) NOT NULL,
+    cache_key           CHAR(64) NOT NULL,
+    cache_key_json      TEXT NOT NULL,
+    result_uri          TEXT NOT NULL,
+    tuple_count         BIGINT,

Review Comment:
   do we want to store statistics separately? I think iceberg catalog has this 
info already, is this duplicate?



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