Pigsty Blog Articles
Incident-Report: Connection-Pool Contamination Caused by pg_dump
December 11, 2018 in PostgreSQL
Sometimes, interactions between components manifest in subtle ways. For example, using pg_dump to export data from a connection pool can cause connection pool contamination issues.
Sometimes, interactions between components manifest in subtle ways. For example, using pg_dump to export data from a connection pool can cause connection pool contamination issues.
PostgreSQL Data Page Corruption Repair
November 29, 2018 in PostgreSQL
Using binary editing to repair PostgreSQL data pages, and how to make a primary key query return two records.
Using binary editing to repair PostgreSQL data pages, and how to make a primary key query return two records.
Relation Bloat Monitoring and Management
October 06, 2018 in PostgreSQL
PostgreSQL uses MVCC as its primary concurrency control technology. While it has many benefits, it also brings other effects, such as relation bloat.
PostgreSQL uses MVCC as its primary concurrency control technology. While it has many benefits, it also brings other effects, such as relation bloat.
TimescaleDB Quick Start
September 07, 2018 in PostgreSQL
TimescaleDB is a PostgreSQL extension plugin that provides time-series database functionality.
TimescaleDB is a PostgreSQL extension plugin that provides time-series database functionality.
Getting Started with PipelineDB
September 07, 2018 in PostgreSQL
PipelineDB is a PostgreSQL extension for streaming analytics. Here’s how to install it and build continuous views over live data.
PipelineDB is a PostgreSQL extension for streaming analytics. Here’s how to install it and build continuous views over live data.
Incident-Report: PostgreSQL Transaction ID Wraparound
July 20, 2018 in PostgreSQL
XID WrapAround is perhaps a unique type of failure specific to PostgreSQL
XID WrapAround is perhaps a unique type of failure specific to PostgreSQL
Incident-Report: Integer Overflow from Rapid Sequence Number Consumption
July 20, 2018 in PostgreSQL
If you use Integer sequences on tables, you should consider potential overflow scenarios.
If you use Integer sequences on tables, you should consider potential overflow scenarios.
PostgreSQL Trigger Usage Considerations
July 07, 2018 in PostgreSQL
Detailed understanding of trigger management and usage in PostgreSQL
Detailed understanding of trigger management and usage in PostgreSQL
GeoIP Geographic Reverse Lookup Optimization
July 07, 2018 in PostgreSQL
A common requirement in application development is GeoIP conversion - converting source IP addresses to geographic coordinates or administrative divisions (country-state-city-county-town-village)
A common requirement in application development is GeoIP conversion - converting source IP addresses to geographic coordinates or administrative divisions (country-state-city-county-town-village)
Understanding Character Encoding Principles
July 01, 2018 in Database
Without understanding the basic principles of character encoding, even simple string operations like comparison, sorting, and random access can easily lead you into pitfalls. This article attempts to clarify these issues through a comprehensive explanation.
Without understanding the basic principles of character encoding, even simple string operations like comparison, sorting, and random access can easily lead you into pitfalls. This article attempts to clarify these issues through a comprehensive explanation.