postgres 正则表达式

PostgreSQL正则表达式

基础：

Operator	Description	Example
~	Matches regular expression, case sensitive	'thomas' ~ '.*thomas.*'
~*	Matches regular expression, case insensitive	'thomas' ~* '.*Thomas.*'
!~	Does not match regular expression, case sensitive	'thomas' !~ '.*Thomas.*'
!~*	Does not match regular expression, case insensitive	'thomas' !~* '.*vadim.*'

注意：~相当于like

Some examples:

'abc' ~ 'abc'    true
'abc' ~ '^a'     true
'abc' ~ '(b|d)'  true
'abc' ~ '^(b|c)' false