Commit dec73640 authored by paul@central.snake.net's avatar paul@central.snake.net
Browse files

manual.texi fix tutorial examples that become incorrect when 

manual.texi	REGEXP became case insensitive.
parent 2165d185

Docs/manual.texi

+21 −5
Original line number Diff line number Diff line
@@ -24782,10 +24782,10 @@ To demonstrate how extended regular expressions work, the @code{LIKE} queries 
shown above are rewritten below to use @code{REGEXP}.















To find names beginning with @samp{b}, use @samp{^} to match the beginning of













the name and @samp{[bB]} to match either lowercase or uppercase @samp{b}:













the name:





























@example













mysql> SELECT * FROM pet WHERE name REGEXP "^[bB]";













mysql> SELECT * FROM pet WHERE name REGEXP "^b";















+--------+--------+---------+------+------------+------------+















| name   | owner  | species | sex  | birth      | death      |















+--------+--------+---------+------+------------+------------+









@@ -24794,6 +24794,23 @@ mysql> SELECT * FROM pet WHERE name REGEXP "^[bB]";













+--------+--------+---------+------+------------+------------+















@end example



























Prior to MySQL 3.23.4, @code{REGEXP} is case sensitive, and the previous













query will return no rows. To match either lowercase or uppercase @samp{b},













use this query instead:

























@example













mysql> SELECT * FROM pet WHERE name REGEXP "^[bB]";













@end example

























From MySQL 3.23.4 on, to force a @code{REGEXP} comparison to be case













sensitive, use the @code{BINARY} keyword to make one of the strings a













binary string. This query will match only lowercase @samp{b} at the













beginning of a name:

























@example













mysql> SELECT * FROM pet WHERE name REGEXP BINARY "^b";













@end example



























To find names ending with @samp{fy}, use @samp{$} to match the end of the















name:























@@ -24807,11 +24824,10 @@ mysql> SELECT * FROM pet WHERE name REGEXP "fy$";













+--------+--------+---------+------+------------+-------+















@end example



























To find names containing a @samp{w}, use













@samp{[wW]} to match either lowercase or uppercase @samp{w}:













To find names containing a lowercase or uppercase @samp{w}, use this query:





























@example













mysql> SELECT * FROM pet WHERE name REGEXP "[wW]";













mysql> SELECT * FROM pet WHERE name REGEXP "w";















+----------+-------+---------+------+------------+------------+















| name     | owner | species | sex  | birth      | death      |















+----------+-------+---------+------+------------+------------+