Computed / calculated / virtual / derived / generated columns in PostgreSQL
Postgres 12 or newer STORED generated columns are introduced with Postgres 12 – as defined in the SQL standard and implemented by some RDBMS including DB2, MySQL, and Oracle. Or the similar “computed columns” of SQL Server. Trivial example: CREATE TABLE tbl ( int1 int , int2 int , product bigint GENERATED ALWAYS AS (int1 … Read more