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POLARDB

FAQs about the PolarDB Always Free Program

This article introduces the frequently asked questions of the PolarDB Always Free Program for all variations to support the developer community.

Open Source PolarDB Uses parray_gin to Implement Efficient Fuzzy Searches for Elements in Arrays and JSON

This article focuses on how the open-source version of PolarDB utilizes parray_gin to implement efficient fuzzy searches for elements in arrays and JSON.

Open Source PolarDB Uses duckdb_fdw to Support Parquet and Efficient OLAP

This article describes how open source PolarDB uses duckdb_fdw to support parquet, a columnar storage file format, and efficient OLAP.

About Database Kernel | How to Analyze Semi-Structured Data Efficiently Through PolarDB IMCI

This article describes traditional database and data warehouse solutions and delves into the technical aspects of PolarDB's IMCI columnar JSON.

[Infographic] Highlights | Database New Feature in October 2023

Do you want to know what's new on database product in October? Check the infographic for details!

Scenario Analysis | How PolarDB-X Supports SaaS Multi-Tenancy

This article describes how to use SaaS multi-tenancy to solve business problems with a real customer case.

How to Claim PolarDB Resources for Free

This article discusses the benefits of PolarDB and explains how to claim resources for free.

About Database Kernel | PolarDB Query Optimization: Predicate Pushdown

This article describes the definition of predicate pushdown and why databases should perform predicate pushdown.

About Database Kernel | PolarDB Optimizer Query Transformation: IN-List Transformation

This article focuses on the IN-list transformation of PolarDB, which showcases the query rewriting capabilities of PolarDB.

About Database Kernel | Deep Analysis on the Optimization and Evolution of PolarDB DDL Locks

This article provides an overview of the experience and progress in end-to-end Metadata Lock (MDL) lock management in Alibaba Cloud PolarDB.

Data Transmission Service เครื่องมือที่จะมาช่วยดูแลการย้ายข้อมูลระหว่าง Database อย่างง่ายดาย

Data Transmission Service เครื่องมือที่ช่วยสนับสนุนการย้ายข้อมูลระหว่าง Database อย่างง่ายดาย

Join Reorder - Core Technology of PolarDB for Xscale Optimizer

This article provides an overview of the implementation methods, advantages, and disadvantages of Join Reorder in various popular databases.

มาเริ่มทดลองใช้ Alibaba Cloud PolarDB กัน

บทความนี้อธิบายถึงขั้นตอนการเปิดใช้งาน Trial PolarDB

About Database Kernel | PolarDB Optimizer Query Transformation - Join Condition Pushdown

This article introduces the concept of join condition pushdown of query transformation in database optimization.

About Database Kernel | PolarDB Optimizer Query Transformation - Join Elimination

This article describes a heuristic query transformation implemented by PolarDB called join elimination.

About Database Kernel | PolarDB Optimizer Query Transformation - Window Functions

This article introduces a method that utilizes the capabilities of window aggregate functions to decorrelate subqueries.

Open Source PolarDB Uses pg_trgm GIN Indexes to Implement Efficient Fuzzy Queries

This article describes how open source PolarDB uses pg_trgm GIN indexes to implement efficient fuzzy queries like '%xxx%'.

Open Source PolarDB Enhances Time Series Data with TimescaleDB

This article describes how open source PolarDB uses TimescaleDB to implement high-speed writing, compression, real-time aggregation computing, and automatic aging of time series data.

Open Source PolarDB Uses pgpool-II to Implement Transparent Read/Write Splitting

This article describes how open source PolarDB uses pgpool-II to implement transparent read/write splitting.

Use Open Source PolarDB and imgsmlr for Efficient Image Storage and Similarity Search

This article provides guidance on using open-source PolarDB and imgsmlr for storing image feature values and performing quick image similarity searches.