postgres if statement

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Discovering the computer science Behind Postgres Indexes

The last in a series of Postgres posts, Pat Shaughnessy wrote based on he presentation at the Barcelona Ruby Conference. You can also watch the video recording of the presentation. The series was originally published in his personal blog, and we is

Postgres log Utility

Postgres log utility has to say that Postgres logs (pg_log, similar to the oracle alter file, rather than pg_xlog) are indeed flexible and feature-rich, the following are some management functions using ipvs logs. The parameters involved are in the

10 Postgres Tips developers should master in 2016

"Editor's note" as an open source object-relational database, Postgres has been loved by many developers. Recently, Postgres officially released version 9.5, which has been a lot of repair and functional improvements. This article will share 10

Analysis of concurrency control in Postgres and transaction characteristics (Concurrency)

PostgreSQL provides developers with a rich set of tools to manage concurrent access to data. Internally, data consistency is maintained by using a multi-version model (multi-version concurrency control, MVCC). This means that each SQL statement sees

? POSTGRES-XL: PostgreSQL-based open source extensible DB cluster

? POSTGRES-XL: PostgreSQL-based open source extensible DB cluster The recent year the industry to the "IoE" more calls louder, many traditional enterprises have to go to the "IoE" program on the desktop. I always wonder what motivates these

Postgres uses returning to implement last_insert_id of mysql

Postgres uses returning to implement last_insert_id of mysql. Today, I am asked if postgres has inserted a value like mysql and returned the inserted value. This is yes and has higher scalability. Example: [S @ localhost ~] $ Psqlpsql (9.2.4)

Modify one line of code to promote Postgres performance 100 times times _postgresql

In a (bad) PostgreSQL query, just a little to change (any (array[...)) to any (VALUES (...) ) will be able to reduce the query time from 20s to 0.2s. From the simplest learning to use EXPLAIN ANALYZE , to learn to use the Postgres community A lot of

Postgres access between different databases

Postgres can not be directly accessed between different databases, such as database Test1 and test2, each database has a table of TableA; I am using the operating system Win8.1,postgres version 9.3.6; Access to Postgres using the PGADMINIII tool;

Golang Accessing SQL like Database (iii)--SQL package + Postgres driver source

This is a creation in Article, where the information may have evolved or changed. Github.com/lib/pq PG is a pure go write driver of the Postgres database. The author gave us a little joke, the PQ will always be habitually written PG there is no ...

Postgres-XL: PostgreSQL-based open-source scalable Database Cluster,

Postgres-XL: PostgreSQL-based open-source scalable Database Cluster,Postgres-XL: PostgreSQL-based open-source scalable Database ClusterIn the past year, IOE has become more and more popular in the industry. Many traditional enterprises have also

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