Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Mind that the order in the ENUM type does matter."

Any command-line input or output is written as follows:

test=# CREATE TYPE currency AS ENUM ('USD', 'EUR', 'GBP');
CREATE TYPE

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "This configuration allows you to authenticate using lightweight directory access protocol (LDAP)."