(check (created_at >= date '' and created_at = date '' and created_at = date '' and created_at = date '' and created_at = date '' and new.created_at = date '' and new.created_at = date '' and new.created_at = date '' and new.created_at <= date '') then We will partition table by date into four quarters of the year. create table logs (created_at timestamp without time zone default now(), Let's start by creating a parent table called logs. The latter is done by explicitly listing which key values appear in The former isĭone with a range defined by a column or set of columns with no overlap between PostgreSQL implements range and list partitioning methods. Each partition mustīe created as a child table of a single parent table (which remains empty andĮxists only to represent the whole data set). PostgreSQL allows table partitioning via table inheritance. The size of a table is about to exceed the physical memory of the database Various performance benefits for tables that hold large amounts of data, i.e. Table partitioning means splitting a table into smaller pieces and provides Insert into articles_w_tags (title, content, tags) Let's insert some data insert into articles_wo_tags (title, content) create table articles (id serial, title varchar, content text) Ĭreate table articles_w_tags (tags text) inherits (articles) Ĭreate table articles_wo_tags () inherits (articles) Master table with children defining additional fields. Table inheritance allows to extract a common set of columns into a parent, PostgreSQL supports table inheritance and table partitioning.
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