As with any database, PostgreSQL has some limits. The following information applies to version 13 of PostgreSQL.
Maximum size for database:
Number of databases:
Number of Database Based relation:
Relation Size ?
Number of Rows Per Table:
4.294.967.295 limited by the number of tuples that can fit on the page
Number of Columns Per Table:
Maximum number of indexes to be created in the table:
Maximum number of columns in the index: