An index definition can specify an operator class for each column of an index.

Name psql -- PostgreSQL interactive terminal

You can create a new table by specifying the table name, along with all column names and their types:

The pg_ts_template catalog contains entries defining text search templates. A template is the implementation skeleton for a class of text search

PostgreSQL is a relational database management system (RDBMS). That means it is

NameCOMMIT -- commit the current transaction Synopsis

NameALTER TABLESPACE -- change the definition of a tablespace Synopsis

Namepg_resetxlog -- reset the write-ahead log and other control information of a PostgreSQL database cluster

All indexes in PostgreSQL are secondary indexes, meaning that each index is stored separately from the table's main

When the optimizer determines that parallel query is the fastest execution strategy for a particular query, it will create a query plan which includes a Gather