[tag=VB] ([tag=CC] [□] | □)*
[tag=VB] ([tag=CC] [□=□] | □)*
[tag=VB] ([tag=CC] [□ & □] | □)*
An optional password file may be specified after the password keyword which is used to match the supplied password rather than the pg_shadow table . Specifically , you will be asked whether the new user should be able to act as Postgres super-user , whether the new user may create new databases and whether the new user is allowed to create other new users . The instance specifies a set of Postgres privileges , such as the ability to act as Postgres super-user , the ability to create / destroy databases , and the ability to update the system catalogs . He also wrote a chapter on it for the Programmer 's Guide.Jan also contributed a second procedural language , PL / pgSQL , to go with the original PL / pgTCL procedural language he contributed last release.We have optional multiple-byte character set support from Tatsuo Iishi to complement our existing locale support.Client / server communications has been cleaned up , with better support for asynchronous messages and interrupts thanks to Tom Lane.The parser will now perform automatic type coersion to match arguments to available operators and functions , and to match columns and expressions with target columns . When upgrading installations , you can simply copy your old Makefile.custom to the new installation before doing the build .