statistics Archives

Tech Optimizer

October 11, 2026

Query Plan Hints in PostgreSQL 19: A New Postgres Feature You Will Probably Never Need

PostgreSQL 19 features an advanced query planner that utilizes table statistics from pg_statistic, gathered during the ANALYZE process, to generate and evaluate potential query plans based on their costs. The planner assesses various configurations, especially in complex joins, to select the most efficient option. Instances of poor planning are treated as bugs and addressed promptly. To improve query performance, users are advised to refresh statistics with ANALYZE, use CREATE STATISTICS for column correlations, modify indexes, and adjust memory settings. In cases where the query cannot be altered, providing planner advice may be necessary, particularly when the planner misestimates the output of PL/pgSQL functions or other custom functions, leading to inefficient query execution.

Tech Optimizer

October 10, 2026

DBtune autonomous optimization blows PostgreSQL bottlenecks away

DBtune, a startup based in Malmö/Lund, Sweden, was founded in 2020 by Dr. Luigi Nardi as a spin-off from Stanford University and Lund University. The company focuses on enhancing PostgreSQL's capabilities through autonomous database optimization technology and has raised .4 million in a seed round from various investors in July 2023, with support from the Wallenberg Foundation and Vinnova. DBtune's technology utilizes agentic AI for optimizing PostgreSQL databases by tuning server parameters, optimizing indexes, and monitoring autovacuum processes. The release of DBtune version 4.0 incorporates machine learning and AI to dynamically adjust server parameters and suggest optimal indexing strategies. The platform identifies and ranks potential index opportunities based on workload and provides recommendations for new indexes and maintenance of existing ones. A case study with Midwest Tape demonstrated a 10.8x performance improvement in database query runtime after employing DBtune for performance tuning. Benchmarking tests showed a transaction throughput increase of 87% during initial optimization, with a further 17% improvement on an already optimized system. Disk I/O activity was reduced by 43%, and WAL generation decreased by 23%. Dr. Nardi emphasizes the need for AI-driven optimization to manage the complexities of PostgreSQL databases and rising cloud costs, suggesting that significant code adaptations will be necessary for achieving fully autonomous PostgreSQL.

AppWizard

October 9, 2026

14 Open-Source Android Apps for Privacy & Control

Users are increasingly seeking control over their digital privacy, leading to the rise of open-source Android applications that provide ad-free experiences and offline functionalities. A selection of 14 vetted applications includes: - Essentials: Unlocks system-level customization without rooting, allowing tweaks like custom notifications and app management. - PhotoU: Uses swipe-based sorting to organize photo galleries offline, enhancing user control over images. - PDF ToolKit: Manages PDF documents locally, enabling merging, splitting, and password protection without cloud uploads. - DNSNet: Acts as a local VPN to block malicious sites and ads before they load, enhancing browsing privacy. - Traffic Light: Monitors network usage in real-time, helping users identify data-draining apps. - CareSleep: Provides offline soundscapes for focus, free from ads and subscriptions. - Weather Master: Customizes weather displays with themes and layouts while respecting user privacy. - Block Ads: Filters ads system-wide without disrupting essential apps through smart split routing. - Nora: A privacy-focused browser that optimizes social media use while blocking trackers. - AB Download Manager: Enhances large file downloads through multi-threading and scheduling. - PixelPlayer: A local music player that adapts to wallpaper and operates ad-free. - MPV EX Video Player: Delivers high-quality video playback without ads, utilizing gesture controls. - CaptureCap: A lightweight screen recorder that captures internal audio without rooting. - Deep De-Noiser: Uses offline AI to remove background noise from recordings, ensuring clear audio quality.

AppWizard

October 7, 2026

Will Android apps struggle on Intel Googlebooks? Google and Intel offer different answers

Support for independent tech journalism is emphasized, with Chrome Unboxed encouraging contributions through its membership program. The text discusses the challenges of running Android applications on Intel versus ARM processors in the context of the new Googlebook OS, which is built on Android 17. Google has warned that Intel-based Googlebooks may face challenges with certain Android apps, particularly those designed for ARM processors, although 96.6% of the top 10,000 Android apps reportedly run well on Intel devices. Intel disputes the need for developer adjustments, promoting its Intel Bridge Technology as a solution for application compatibility and performance. The ongoing public disagreement highlights concerns for potential buyers regarding the performance of Intel-powered Googlebooks, especially for resource-intensive applications.

AppWizard

October 7, 2026

Connecticut’s attorney general announces investigation into Kik messenger app

- 55% of households utilizing food pantries have children. - 65% of pantry-dependent households rely on food pantries multiple times each month. - 26% of individuals seeking assistance from food pantries are newcomers who have turned to these resources within the last six months.

Tech Optimizer

October 7, 2026

Antivirus: Do you still need it?

Purchasing antivirus software is often seen as necessary but can be frustrating, especially with built-in security features available on most computers. Windows includes Microsoft Defender Antivirus, which has been independently tested and scored well for protection, performance, and usability. Mac users have XProtect for malware detection. Users should verify that their existing protection is enabled and up-to-date before considering a subscription. Antivirus programs combat various types of malware, using methods like signature scanning and heuristic analysis, but they are not infallible. Research on antivirus effectiveness varies, with scores reflecting different criteria and not universally applicable detection rates. Subscriptions may be worthwhile if they offer specific features, but users should be cautious about renewal prices and unnecessary multiple installations. Maintaining updated software and practicing good security habits are essential for protection. For everyday use, built-in protection is often sufficient unless additional benefits justify the cost of extra software.

AppWizard

October 5, 2026

NBC goes all in on Mike Tomlin’s Minecraft era on ‘Football Night In America’

Mike Tomlin has transitioned from coaching to media, appearing on NBC’s Football Night in America and showcasing his Minecraft city, which gained 3 million views after being featured on Late Night with Seth Meyers. During the FNIA broadcast, NBC presented a Minecraft-themed highlight reel of Tomlin's city. Tomlin expressed appreciation for the Minecraft segment and engaged in lighthearted banter with fellow analysts. Although he stepped down from his coaching position with the Pittsburgh Steelers earlier this year, he has not ruled out a return to the NFL but is currently enjoying his role in media. Devin McCourty noted that Tomlin seems "genuinely happy" in this new phase of his career.

Tech Optimizer

September 28, 2026

What Is Happening with PostgreSQL 19?

Postgres 19 is experiencing delays in its release schedule, with Beta 4 scheduled for September 24, 2026. The development team is prioritizing quality over timelines, leading to the reversion of 53 significant features during the beta phase. Notable feature reversions include SQL Property Graph Queries, ALTER TABLE MERGE/SPLIT PARTITION(S), UPDATE/DELETE FOR PORTION OF, GROUP BY ALL, a change to default TOAST compression, nontext output formats for pg_dumpall, JSON_TABLE ON ERROR cascading, fast defaults for domains with nonvolatile constraints, logical replication database-specific snapshots, nested query tracking, and online data checksums. The majority of these reversions are due to design flaws, incorrect results, or compatibility issues. There are also at-risk features identified, including RI fast-path FK checks, REPACK / REPACK CONCURRENTLY, and Postgres_fdw statistics import. Despite these challenges, promising features such as pg_plan_advice, parallel autovacuum, ON CONFLICT DO SELECT, and logical replication enhancements are still anticipated in PG19. AI tools are being utilized in the development process to identify bugs and create test cases. Postgres 18 remains a reliable upgrade target, while features like property graphs and GROUP BY ALL are now planned for PG20.

AppWizard

September 19, 2026

Why I still install this third-party battery app on my Android phones in 2026

AccuBattery is a battery management app that helps users identify and diagnose software and hardware issues draining their device's battery. It offers a distinct approach by using pattern recognition over time for data gathering, which can yield more accurate insights compared to built-in tools. AccuBattery provides detailed statistics, including mAh consumption of each app, current, temperature, and voltage, facilitating easier diagnosis of potential hardware issues. Users can benefit from using AccuBattery alongside built-in tools, as each may catch what the other overlooks. The app includes a charge alarm feature that notifies users when their battery reaches 80%, promoting better battery longevity. However, AccuBattery relies on observational data, which may not always be perfectly accurate. It is not categorically superior or inferior to built-in tools but offers depth of detail that can be beneficial for users facing persistent battery issues.

AppWizard

September 17, 2026

Wardogs is the only FPS where I actually expect to get revived

Players achieved 123 million kills and 61 million revives during the inaugural weekend of Wardogs, resulting in a resurrection rate of nearly 50%. Medics can be incentivized with bribes of up to for a revive. Wardogs does not provide respawn beacons; players can only rejoin the game by using a team's sole APC with a cooldown or walking 3km back from headquarters. This setup encourages players to wait for revives rather than giving up. The game promotes cooperation and teamwork, particularly within the medic role.