From: | "Mark Williams" <markwillimas(at)gmail(dot)com> |
---|---|
To: | "'A(dot) Sasaki'" <asasaki(at)gmail(dot)com> |
Cc: | <pgsql-sql(at)lists(dot)postgresql(dot)org> |
Subject: | RE: Regular Expressions |
Date: | 2018-11-04 19:43:26 |
Message-ID: | 013401d47476$a7acf540$f706dfc0$@gmail.com |
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Thread: | |
Lists: | pgsql-sql |
Hi Andrew,
Thanks for the reply.
I tried the query, but it produced an error “invalid regular expression: quantifier operand invalid”.
Also, what would be the regular expression if you want to check whether all the words were in the field where you had say 10 words/phrases you wanted to check for?
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From: A. Sasaki <asasaki(at)gmail(dot)com>
Sent: 04 November 2018 19:30
To: Mark Williams <markwillimas(at)gmail(dot)com>
Subject: Re: Regular Expressions
‘(*\mtext1\M*\mtext2\M)|(*\mtext2\M*\mtext1\M)’
Thanks,
-Andrew-
On Nov 4, 2018, at 9:10 AM, Mark Williams <markwillimas(at)gmail(dot)com <mailto:markwillimas(at)gmail(dot)com> > wrote:
If I wanted to search for whole words in a field I would use something like:
Select * from mytable where myfield ~* ‘(\mtext1\M) | (\mtext2\M)’
This would find all instances of myfield containing either “text1” or “text2”.
I can’t figure out how to search myfield for all instances which contain “text1” AND “text2”.
In other words | is the OR operator. What is the AND operator. Tried + and whilst that executes, it doesn’t return matching fields.
Thanks
Mark
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