Tag: table access method

Enterprise PostgreSQL Solutions

How PostgreSQL Inserts A New Record With The help of Table Access Method API and Buffer Manager

February 3, 2021

1. Introduction This blog talks about a high level description of the mechanism behind PostgreSQL to execute an INSERT query. This process involves many steps of processing before the data is put in the right place. These process normally involves several catalog cache lookup to determine if the destination table exists or several checking on…
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How PostgreSQL Executes Sequential Scans with the Help of Table Access Methods APIs

January 15, 2021

1. Introduction There are many approaches for PostgreSQL to retrieve the data back to the user. Depending on the user’s input query, the planner module is responsible for selecting the most optimum approach to retrieve the requested data. Sequential scan is one of these approaches that is mostly selected when the user requests a large…
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