PostgreSQL
Finding Unused Indexes
February 04, 2018 in PostgreSQL
Indexes are useful, but they're not free. Unused indexes are a waste. Use these methods to identify unused indexes.
Indexes are useful, but they're not free. Unused indexes are a waste. Use these methods to identify unused indexes.
Batch Configure SSH Passwordless Login
January 07, 2018 in PostgreSQL
Quick configuration for passwordless login to all machines
Quick configuration for passwordless login to all machines
Wireshark Packet Capture Protocol Analysis
January 05, 2018 in PostgreSQL
Wireshark is a very useful tool, especially suitable for analyzing network protocols. Here's a simple introduction to using Wireshark for packet capture and PostgreSQL protocol analysis.
Wireshark is a very useful tool, especially suitable for analyzing network protocols. Here's a simple introduction to using Wireshark for packet capture and PostgreSQL protocol analysis.
The Versatile file_fdw — Reading System Information from Your Database
December 01, 2017 in PostgreSQL
With `file_fdw`, you can easily view operating system information, fetch network data, and feed various data sources into your database for unified viewing and management.
With `file_fdw`, you can easily view operating system information, fetch network data, and feed various data sources into your database for unified viewing and management.
Installing PostGIS from Source
September 07, 2017 in PostgreSQL
PostGIS is PostgreSQL's killer extension, but compiling and installing it isn't easy.
PostGIS is PostgreSQL's killer extension, but compiling and installing it isn't easy.
Common Linux Statistics CLI Tools
September 07, 2017 in PostgreSQL
top, free, vmstat, iostat: Quick reference for four commonly used CLI tools
top, free, vmstat, iostat: Quick reference for four commonly used CLI tools
Go Database Tutorial: database/sql
August 24, 2017 in PostgreSQL
Similar to JDBC, Go also has a standard database access interface. This article details how to use database/sql in Go and important considerations.
Similar to JDBC, Go also has a standard database access interface. This article details how to use database/sql in Go and important considerations.
Implementing Cache Synchronization with Go and PostgreSQL
August 03, 2017 in PostgreSQL
Cleverly utilizing PostgreSQL's Notify feature, you can conveniently notify applications of metadata changes and implement trigger-based logical replication.
Cleverly utilizing PostgreSQL's Notify feature, you can conveniently notify applications of metadata changes and implement trigger-based logical replication.
Auditing Data Changes with Triggers
June 09, 2017 in PostgreSQL
Sometimes we want to record important metadata changes for audit purposes. PostgreSQL triggers can conveniently solve this need automatically.
Sometimes we want to record important metadata changes for audit purposes. PostgreSQL triggers can conveniently solve this need automatically.
Building an ItemCF Recommender in Pure SQL
April 05, 2017 in PostgreSQL
Five minutes, PostgreSQL, and the MovieLens dataset—that’s all you need to implement a classic item-based collaborative filtering recommender.
Five minutes, PostgreSQL, and the MovieLens dataset—that’s all you need to implement a classic item-based collaborative filtering recommender.