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The PostgreSQL community debates ALTER SYSTEM [LWN.net]

The PostgreSQL community debates ALTER SYSTEM [LWN.net]
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Bruce Momjian , Alvaro Herrera , Gabriele Bartolini , Jelte Fennema , Jonathan Corbet , Robert Haas , Cloud Native , Ansible Tower , Tom Lane , Jelte Fennema Nio ,

Scaling out Postgres with the Citus open source shard rebalancer


Scaling out Postgres with the Citus open source shard rebalancer
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One of the main reasons people use the Citus extension for Postgres is to distribute the data in Postgres tables across multiple nodes. Citus does this by splitting the original Postgres table into multiple smaller tables and putting these smaller tables on different nodes. The process of splitting bigger tables into smaller ones is called sharding and these smaller Postgres tables are called “shards”. Citus then allows you to query the shards as if they were still a single Postgres table.
One of the big changes in Citus 10 in addition to adding columnar storage, and the new ability to shard Postgres on a single Citus node is that we open sourced the shard rebalancer. ....

Hyperscale Citus , Jelte Fennema , Azure Database , நீலமான தரவுத்தளம் ,