tables Archives

Tech Optimizer

May 1, 2026

Ghost: A Database for Our Times?

Ghost, developed by ghost.build, is an "agent-first" Postgres database platform designed for AI-related applications, allowing developers and AI agents to create, fork, inspect, query, manipulate, and delete databases easily. It is free to use and hosted on Ghost’s Cloud infrastructure, making it suitable for testing, prototyping, and disposable database environments. Users can create databases on demand, execute SQL queries, and discard them when finished, contrasting with traditional managed databases. Ghost integrates with AI tools like Codex and Claude Code, providing direct database management capabilities through its MCP server. To install Ghost, users need a supported coding agent and a GitHub account. Installation commands differ for Linux, macOS, and Windows. After installation, users can verify the Ghost MCP server and interact with it through their coding agents. Examples of using Ghost include creating a sales data database, utilizing Ghost CLI commands, and experimenting with databases through AI agents. Ghost allows for rapid database manipulation and is ideal for proofs of concept and experimentation, although caution is advised before using it for production data.

Tech Optimizer

April 30, 2026

Inside the Architecture of an MCP Server for PostgreSQL

The Model Context Protocol (MCP) serves as a standard interface between large language models (LLMs) and external systems like PostgreSQL, emphasizing the importance of control over mere connectivity. An MCP server must act as a mediation and policy layer, enforcing security boundaries and ensuring that connections default to read-only. It should validate AI-generated SQL as untrusted input, encapsulate queries within transactions, and apply execution-time controls. The server must separate query generation from execution approval to manage operational costs and enforce guardrails on query types, such as limiting the number of rows returned. Token efficiency is crucial, with design considerations for compact data representation and schema introspection. In production, connection management is vital to prevent data leakage among multiple AI agents, and observability through logging executed queries and metadata is necessary for debugging and compliance. Long-running sessions require support for paginated responses to manage context effectively. Overall, the MCP server must integrate security, query safety, token efficiency, and observability into its design from the outset.

AppWizard

April 21, 2026

Minecraft Maps Guide: How to Master the 1.21 Grid and Find Trial Chambers | Attack of the Fanboy

Maps in Minecraft have become essential for navigating underground Trial Chambers introduced in the 1.21 Tricky Trials update. Players can create maps using a Cartography Table, which requires only two pieces of paper and four wooden planks, making it more efficient than the traditional crafting table method. An empty map costs one piece of paper, and scaling maps up or down also only requires one piece of paper. For Bedrock Edition players, creating a locator map with a compass is necessary to display their position. Maps can be scaled from level 0 to level 4, with each level covering increasingly larger areas but with less detail. Level 0 covers a 128 by 128 block area, while level 4 spans 2048 by 2048 blocks. The Trial Explorer Map, obtainable from a Cartographer for 12 emeralds and a compass, helps players locate Trial Chambers, which are hidden within deepslate layers at Y levels between 0 and -64. Minecraft maps do not center on the player but snap to a fixed grid, requiring players to move specific distances to align maps correctly. Players can use a white dot that appears on the edge of their map for navigation and can mark locations using renamed banners. Additionally, maps display the highest block in a vertical column, allowing for creative map art projects. The lore suggests a connection to an ancient civilization of builders, with villagers continuing their legacy through cartography.

AppWizard

April 19, 2026

A new Project Zomboid update could make multiplayer servers much more deadly

The upcoming update for Project Zomboid, build 42.17, will enhance the sandbox experience and multiplayer gameplay with various improvements. Players can choose any 'Exclusion Zone' town as their starting point in sandbox mode, although occupational spawns are limited to four 'canon' towns. The update introduces a new selection of VHS tapes for skill training, which can be found throughout the game world. Balancing adjustments include increased points for the Smoker and High Thirst traits, a reduced cost for the Nutritionist trait, and changes to how Chefs and Farmers function. Loot drop rates for 'other loot' have been increased, and vehicles in Apocalypse mode are more likely to contain fuel. Stendo's Firearms Emporium is being updated for better consistency in store loot. A prototype feature allowing players to enable sprinters in multiplayer has been introduced, adding urgency to gameplay. The Indie Stone is also working on improving controller support based on player feedback.

Tech Optimizer

April 15, 2026

Postgres to Iceberg in 13 minutes: How Supermetal compares to Flink, Kafka Connect, and Spark

Supermetal introduced Iceberg sink support, allowing for data transfer from Postgres to Iceberg. In a performance comparison, Supermetal completed snapshotting in 13 minutes, while Flink took 90 to 116 minutes, Kafka Connect required 120 minutes, and Spark exceeded 3 hours. The tests focused on throughput during the snapshotting phase rather than latency. The setup used the TPC-H dataset with a scale factor of 50 and involved AWS infrastructure. Supermetal operates independently of Kafka, enabling direct data delivery from source to sink. It utilizes a JSON configuration file for deployment, supporting various catalogs and advanced configuration options. Supermetal's Iceberg writer can adjust settings based on the CDC source phase. Throughout the tests, Supermetal maintained low CPU and memory usage, while other tools faced challenges with performance and resource management. Data synchronization was validated across all tools, with Supermetal achieving at least 7x faster snapshotting performance without tuning.

Tech Optimizer

April 11, 2026

Database Branching in Postgres: Git-Style Workflows with Databricks Lakebase

Database branching is a modern approach that addresses the limitations of traditional database management in development workflows. Unlike conventional database copies, which require significant time and resources to duplicate data and schema, database branching allows for the creation of isolated environments that share the same underlying storage. This method utilizes a copy-on-write mechanism, enabling branches to be created in seconds regardless of database size, with storage costs tied only to the changes made. Key features of database branching include: - Branch creation time: Seconds, constant regardless of database size. - Storage cost: Proportional to changes only, not the total data size. - Isolation: Each branch has its own Postgres connection string and compute endpoint. - Automatic scaling: Idle branches can scale compute to zero, incurring costs only when active. The architecture supporting this approach separates compute from storage, allowing multiple branches to reference the same data without conflict. This design facilitates time travel capabilities, enabling branches to be created from any point in the past for instant recovery and inspection. Database branching unlocks new workflows, such as: - One branch per developer, providing isolated environments for each engineer. - One branch per pull request, automating branch creation and deletion tied to PRs. - One branch per test run, provisioning fresh databases for each CI pipeline execution. - Instant recovery from any point in time within a designated restore window. - Ephemeral environments for AI agents, allowing programmatic database provisioning. Databricks Lakebase offers this database branching capability, transforming the database from a bottleneck into a streamlined component of the development process.

Winsage

April 10, 2026

Microsoft begins removing Copilot from Windows 11, starting with Notepad, Snipping Tool

Microsoft has removed the Copilot branding from the Notepad app for Windows Insiders, replacing it with a "Writing tools" icon in the latest update (version 11.2512.28.0). Despite the removal of the logo, AI functionality remains intact, and users can disable the feature through the Settings menu under "Advanced Features." The Snipping Tool has also eliminated the Copilot button and currently shows no AI integration. Microsoft is scaling back unnecessary Copilot integration in various apps, including Notepad and Snipping Tool, while still maintaining underlying AI capabilities.

Tech Optimizer

April 8, 2026

PostgreSQL logical replication: How to replicate only the data that you need

Many organizations using PostgreSQL face challenges in replicating data across different logical databases while controlling shared information. PostgreSQL 15 introduces native logical replication with column-level and row-level filtering within publications, allowing precise control over data transfer between PostgreSQL databases. Logical replication operates on a publish-subscribe model, where the source database logs changes to the Write-Ahead Log (WAL) and applies publication filters to transmit only the relevant data to the target database. Two filtering modes are available: column-level filtering allows users to specify which columns to replicate, while row-level filtering uses WHERE clauses to determine which rows to include. Both filtering modes can be combined in a single publication. The SQL syntax for creating publications and subscriptions is consistent across various PostgreSQL environments, with specific configurations required for enabling logical replication. Use cases for logical replication include multi-tenant SaaS data isolation, regional data distribution for ecommerce, PCI DSS compliance in financial services, development and testing environments, and retail inventory management. Prerequisites for implementing logical replication include using PostgreSQL 15 or later, ensuring network connectivity, having a user with replication privileges, enabling logical replication on the source instance, and monitoring WAL retention. Logical replication has limitations, such as the need for a replica identity for UPDATE and DELETE operations, the non-replication of DDL changes and sequences, and potential performance overhead during initial synchronization and ongoing replication. After testing, it is advisable to clean up by removing replication resources to prevent unnecessary costs.

AppWizard

April 8, 2026

Minecraft village features, loot, trades, and how to find them

Minecraft villages are important locations in the game, serving as resource-rich hubs for players. They can be found by looking for flickering lights at dusk or scanning for house silhouettes during the day. Players can also use specific seeds to locate villages directly. Villages contain various buildings, including libraries and cleric temples, which provide valuable resources like bookshelves and brewing stands. Villagers have specific trades that can be beneficial, such as: - Fletcher: Ideal for acquiring emeralds. - Librarian: Source of enchanted books. - Cartographer: Offers maps to mansions and oceans. Villagers can adopt professions when a profession block is placed nearby, except for Nitwits. Once traded with, a villager's trades remain fixed unless their profession block is removed. A list of villagers and their corresponding profession blocks includes: - Armorer - Blast Furnace - Butcher - Smoker - Cartographer - Cartography Table - Cleric - Brewing Stand - Farmer - Composter - Fisherman - Barrel - Fletcher - Fletching Table - Leatherworker - Cauldron - Librarian - Lectern - Mason - Stonecutter - Shepherd - Loom - Toolsmith - Smithing Table - Weaponsmith - Grindstone The fletcher is a good starting point for earning emeralds by trading sticks. Players can create and repeatedly break a fletching table to encourage trades. The librarian is crucial for obtaining enchanted books, with sought-after enchantments like Mending and Fortune linked to specific biomes. The cartographer offers maps to Woodland Mansions and Trial Chambers, which are essential for exploration.

Winsage

April 7, 2026

Notepad (25H2)

Microsoft has transformed its Notepad text editor in Windows 11, introducing features such as a tabbed user interface, basic session state management, a "Recent files" option, and AI-driven writing tools. Notepad now supports Markdown markup language for light formatting and includes customizable settings for themes, fonts, document opening preferences, and the ability to disable certain features. Users can access AI writing tools through a Copilot button, which requires a Microsoft account and an active Microsoft 365 subscription. The classic Notepad version is still available, allowing users to revert to the previous interface, although it cannot be set as the default app for text files.