Add Redshift + Materialized Views

Fix Cassaandra Classification

README.md

@@ -180,6 +180,7 @@ For instance, take into account the snaptshot above. If you already know how to
           * [Sharding & Database Partitioning | System Design Basics](https://www.youtube.com/watch?v=RynPj8C0BXA) 📼 🆓
           * [System Design - Sharding | Data Partitioning](https://www.youtube.com/watch?v=yNrVexoEnFM) 📼 🆓
       * SQL
+        * Row-based
           * PostgreSQL
             * [Postgres: Up & Running](https://learning.oreilly.com/library/view/postgresql-up-and/9781491963401/) 📕 💰 ⭐️
             * [Learning PostgreSQL 11](https://learning.oreilly.com/library/view/learning-postgresql-11/9781789535464/) 📕 💰
@@ -225,6 +226,12 @@ For instance, take into account the snaptshot above. If you already know how to
                * [Getting Started with Aurora Serverless Data API](https://www.youtube.com/watch?v=b_BzV1G1iRs) 📼 🆓
            * Cross-region Replication
              * [Best practices for Amazon RDS for PostgreSQL cross-Region read replicas](https://aws.amazon.com/blogs/database/best-practices-for-amazon-rds-for-postgresql-cross-region-read-replicas/) 📰 🆓
+        * Column-based
+          * Redshift
+            * Materialized Views
+              * [Docs](https://docs.aws.amazon.com/redshift/latest/dg/materialized-view-overview.html) 📰 🆓
+              * [Overview](https://www.youtube.com/watch?v=mQAs44MHmeY) 📼 🆓
+              * [Deep-Dive](https://www.youtube.com/watch?v=PjBMZW4Ze0c) 📼 🆓
       * NoSQL
         * KeyValue
           * [BoJack](https://github.com/marceloboeira/bojack) ✍🏼 💻 🆓

resources/topic-graph.mmd

@@ -33,15 +33,18 @@ graph TD
         DBT --> DBTR[Replication]
         DBT --> DBTX[Sharding]
       DB --> SQL[SQL]
-        SQL --> PgSQL
-        SQL --> MySQL
-        SQL --> Cassandra
+        SQL --> rSQL[Row-oriented]
+          rSQL --> PgSQL
+          rSQL --> MySQL
+        SQL --> cSQL[Column-oriented]
+          cSQL --> Redshift
       DB --> NoSQL[NoSQL]
         NoSQL --> KV[KeyValue]
           KV --> Rd[Redis]
         NoSQL --> DoS[DocumentStore]
           DoS --> Mng[Mongo]
           DoS --> ES[ElasticSearch]
+        NoSQL --> CS[Cassandra]
     SW --> LD[Ledgers]
 
   SW --> DSi[Distributed Systems]