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: "To figure out what is going wrong, PostgreSQL offers the EXPLAIN command."
Any command-line input or output is written as follows:
test=# EXPLAIN SELECT * FROM t_test ORDER BY id DESC LIMIT 10;
Warnings or important notes appear like this.
Tips and tricks appear like this.
