From: Tom Lane <tgl@sss.pgh.pa.us>
To: "Mark Williams" <markwillimas@gmail.com>
cc: "'A. Sasaki'" <asasaki@gmail.com>, pgsql-sql@lists.postgresql.org
Subject: Re: Regular Expressions
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Comments: In-reply-to "Mark Williams" <markwillimas@gmail.com>
	message dated "Sun, 04 Nov 2018 19:43:26 +0000"
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Date: Sun, 04 Nov 2018 14:55:07 -0500
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"Mark Williams" <markwillimas@gmail.com> writes:
> 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 wan=
ted to check for?

As David said, regular expressions aren't really designed to do that.
Personally I'd do the AND at the SQL level, ie

myfield ~* '\mtext1\M' AND myfield ~* '\mtext2\M' AND ...

You might also take a look at the full text search machinery, which
is probably better suited to this task.

			regards, tom lane