Hi,
I am in the process of converting some TEXT data which I try
to identify by regular expression.
What I don't understand is: Why does the following return a
substring ?
select substring ('junk $<allergy::test::99>$ junk' from '\$<[^<]+?::[^:]+?>\$');
I would have thought the '::[^:]+?>' part should have meant
after two ":"s
match at least one character
except any further ":"s
until the next ">"
I don't find the flaw in my thinking. Can anyone help ?
(Sure, it is not PostgreSQL-specific yet I need to run this
in PostgreSQL on data migration.)
Karsten
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