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|
SELECT pcre 'fo+';
pcre
------
fo+
(1 row)
SELECT pcre '+';
ERROR: PCRE compile error: nothing to repeat
LINE 1: SELECT pcre '+';
^
SELECT 'foo' =~ 'fo+';
?column?
----------
t
(1 row)
SELECT 'bar' =~ 'fo+';
?column?
----------
f
(1 row)
SELECT 'error' =~ '+';
ERROR: PCRE compile error: nothing to repeat
LINE 1: SELECT 'error' =~ '+';
^
SELECT 'foo' ~ pcre 'fo+';
?column?
----------
t
(1 row)
SELECT 'bar' ~ pcre 'fo+';
?column?
----------
f
(1 row)
SELECT pcre 'fo+' ~ 'foo';
?column?
----------
t
(1 row)
SELECT pcre 'fo+' ~ 'bar';
?column?
----------
f
(1 row)
SELECT 'foo' !~ pcre 'fo+';
?column?
----------
f
(1 row)
SELECT 'bar' !~ pcre 'fo+';
?column?
----------
t
(1 row)
SELECT pcre 'fo+' !~ 'foo';
?column?
----------
f
(1 row)
SELECT pcre 'fo+' !~ 'bar';
?column?
----------
t
(1 row)
SELECT pcre 'fo+' ~ ANY(ARRAY['foo', 'bar']);
?column?
----------
t
(1 row)
SELECT 'FOO' ~ pcre 'fo+';
?column?
----------
f
(1 row)
SELECT 'FOO' ~ pcre '(?i)fo+';
?column?
----------
t
(1 row)
SELECT pcre_match('fo+', 'foobar');
pcre_match
------------
foo
(1 row)
SELECT pcre_match('fo+', 'barbar');
pcre_match
------------
(1 row)
SELECT pcre_captured_substrings('(fo+)(b..)', 'foobar');
pcre_captured_substrings
--------------------------
{foo,bar}
(1 row)
SELECT pcre_captured_substrings('(fo+)(b..)', 'abcdef');
pcre_captured_substrings
--------------------------
(1 row)
SELECT pcre_captured_substrings('(a|(z))(bc)', 'abc');
pcre_captured_substrings
--------------------------
{a,NULL,bc}
(1 row)
SELECT pcre_captured_substrings('(abc)(x(yz)?)?', 'abc');
pcre_captured_substrings
--------------------------
{abc,NULL,NULL}
(1 row)
|
