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Articles by Ming Ying
Making COUNTs and the Rest of Search Really Fast (Part II)
By Ming Ying on October 13, 2026 In Part I, we improved ParadeDB’s Top K BM25 performance by orders of magnitude. At the end, we committed to publishing a Part II focusing on COUNT. This post walks through the optimizations that made our COUNT queries much faster. Here’s the end result, using the same Wikipedia dataset and benchmark harness as the original TIN post: Wikipedia COUNT search8 concurrent clients · 5 minute run ↑ Higher is better Clean tables.
PlanetScale Released Text Search and We Have a Lot to Say (Part I)
By Ming Ying on October 1, 2026 Two weeks ago, PlanetScale unveiled TIN, a full-text search extension for Postgres. Their launch post reported impressive performance wins over a subset of ParadeDB’s text search functionality, specifically BM25-ranked text search and document counts. We’d like to extend kudos to the PlanetScale team 1.
Restoration of endogenous electric fields with a glucose-powered symbiotic bioabsorbable bandage for diabetic wound healing
Abstract INTRODUCTION RESULTS DISCUSSION MATERIALS AND METHODS Acknowledgments Supplementary Materials REFERENCES Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Endogenous electric fields (EFs) are essential for tissue regeneration but are diminished under hyperglycemia conditions, thereby impeding diabetic wound healing.
How We Optimized Top K in Postgres
By Ming Ying on February 13, 2026 In databases, Top K means “give me the K best rows, ordered by some column or value.” Commonly that means “the most recent rows,” “the highest scores,” or “the largest values.” It feels like a basic problem that Postgres should solve. After all, can’t we just create an index? Yet in many production Postgres deployments, Top K is deceptively hard.
Synthesis of nano silver particles using extracellular polysaccharide of Pseudoduganella armeniaca ZMN-3: antibacterial activity, antibacterial mechanism and antibacterial application as coating | BMC Biotechnology | Full Text
The EPS used in this study was extracted and purified from Pseudoduganella armeniaca ZMN-3 [19]. Isolation and purification are shown in Figure S1. After separation and purification, the main component used in subsequent experiments was DSPS-2. The molecular weight of DSPS-2 was determined by high-performance gel permeation chromatography (HPGPC), confirming the high purity of this component. UV analysis of DSPS-2 indicated the absence of nucleic acids or proteins, further verifying its purity.
[2508.09817] Unified Design of Space-Air-Ground-Sea Integrated Maritime Communications
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We Made Postgres Writes Faster, but it Broke Replication
We Made Postgres Writes Faster, but it Broke Replication By Stu Hood, Ming Ying, Mathew Pregasen, and Olive Ratliff on June 30, 2025 When we built pg_search, the Postgres extension for search and analytics, write throughput was a priority. To be an effective alternative to Elasticsearch we needed to support high ingest workloads in real time.
Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and Analysis
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Effects of Nannochloropsis salina Fermented Oil on Proliferation of Human Dermal Papilla Cells and Hair Growth
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Impact of Extratropical Circulation in East Asia on Western North Pacific Tropical Cyclone Frequency and Intensity
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Optimizing Load Capacity Predictions in Gas Foil Thrust Bearings: A Novel Full-Ramp Model
1. Introduction The integral role of gas foil bearings (GFB) within oil-free turbomachinery encompasses two crucial components: gas foil journal bearings (GFJB) [1,2,3,4,5], responsible for radial forces, and gas foil thrust bearings (GFTB) [6,7,8,9,10], dedicated to axial forces. The Classical Model (CM) for GFTB, depicted in Figure 1, comprises top foils, bump foils, and a base plate for fixation. The top foil can be divided into a ramp section and a flat section according to its shape.
Lubricants | Free Full-Text | Impact of Gas Foil Bearings, Labyrinth Seals, and Impellers on the Critical Speed of Centrifugal Compressors for Fuel Cell Vehicles: A Comprehensive Investigation
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Schizochytrium sp. Extracted Lipids Prevent Alopecia by Enhancing Antioxidation and Inhibiting Ferroptosis of Dermal Papilla Cells
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[2305.12622] Evaluating the Impact of Social Determinants on Health Prediction in the Intensive Care Unit
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The Impact of CEO Narcissism on Earnings Management
We provide the first empirical test of the relation between CEO narcissism and earnings manipulation. We test the hypothesis that narcissistic leaders over‐identify themselves with the organizations they lead and expend considerable effort to achieve their goals, including by engaging in unethical behaviour. Earnings announcements are highly anticipated information releases by organizations.
The Impact of CEO Narcissism on Earnings Management
We provide the first empirical test of the relation between CEO narcissism and earnings manipulation. We test the hypothesis that narcissistic leaders over-identify themselves with the organizations they lead and expend considerable effort to achieve their goals, including by engaging in unethical behaviour. Earnings announcements are highly anticipated information releases by organizations.
Phosphorylation at serine 31 targets tyrosine hydroxylase to vesicles for transport along microtubules
Tyrosine hydroxylase (TH) catalyzes the conversion of l-tyrosine into l-DOPA, which is the rate-limiting step in the synthesis of catecholamines, such as dopamine, in dopaminergergic neurons. Low dopamine levels and death of the dopaminergic neurons are hallmarks of Parkinson's disease (PD), where ?-synuclein is also a key player. TH is highly regulated, notably by phosphorylation of several Ser/Thr residues in the N-terminal tail.
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