Oct 6, 2016 · One downside of creating index after importing is that table must be locked, and that may take long time (it will not be locked in opposite scenario). But, in PostgreSQL 8.2 and later, you can …

Apr 29, 2024 · 636 PostgreSQL automatically creates indexes on primary keys and unique constraints, but not on the referencing side of foreign key relationships. When Pg creates an implicit index it will …

In PostgreSQL 9.3 Beta 2 (?), how do I create an index on a JSON field? I tried it using the -> operator used for hstore but got the following error: CREATE TABLE publishers(id INT, info JSON);

Feb 2, 2022 · Create an index on the key column (s), as well as any other indexes you might want, on the partitioned table. This automatically creates a matching index on each partition, and any …

Dec 20, 2022 · In my Postgres 14.3 database on AWS RDS, I want to create an index without blocking other database operations. So I want to use the CONCURRENTLY option and I executed the …

Apr 10, 2019 · How to create an index on a partitioned table in PostgreSQL 11.2? My table is: CREATE TABLE sometablename ( column1 character varying(255) COLLATE pg_catalog."default" NOT …

Mar 19, 2019 · PostgreSQL automatically creates an index for each unique constraint and primary key constraint to enforce uniqueness. Other than that, if you want a non-unique index, you will need to …

May 26, 2014 · PostgreSQL will automatically create an index for the primary key of a table, when you create the table. On the command line, it will tell you that it creates it and it's name.

Mar 1, 2016 · I would like to add an index with a WHERE clause in Postgres. I used the following query to do that: create index concurrently em_openorder_idx on line (m_product_id, org_id, date) where …

Aug 12, 2015 · Where name is a textual field in PostgreSQL. No other query checks any textual property of this value, just whether it is NULL or not. Therefore, a full btree index seems like an overkill, even …