Returns true if
str: A STRING expression.
pattern: A STRING expression.
escape: A single character STRING literal.
The pattern is a string which is matched literally, with exception to the following special symbols:
_matches any one character in the input (similar to
.in POSIX regular expressions)
%matches zero or more characters in the input (similar to
.*in POSIX regular expressions).
The default escape character is the
If an escape character precedes a special symbol or another escape character, the following character is matched literally.
It is invalid to escape any other character.
String literals are unescaped. For example, in order to match
'\abc', the pattern should be
str NOT like ... is equivalent to
NOT(str like ...).