CREATE UNIQUE INDEX

• https://www.postgresql.org/docs/current/indexes-unique.html

ndexes can also be used to enforce uniqueness of a column's value, or the uniqueness of the combined values of more than one column.

Related

• create index
• unique constraint

See also

• Index (PostgreSQL): create index, Index Locking
• SQL, NewSQL, RDMS: GraphQL (2015), SQLite, select, insert, select count, Distributed SQL, TablePlus, Cache hit ratio, pg_stat_user_tables, EXPLAIN, Index (PostgreSQL), DDL, SQL/MED, Group by, List users, SQL Injection, SQLAlchemy, CREATE USER, CREATE ROLE, EXPLAIN, ALTER DATABASE, REVOKE, NOLOCK, NOWAIT, EXISTS, Unique constraint