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From: Tom Lane <tgl@sss.pgh.pa.us>
To: shihao zhong <zhong950419@gmail.com>
cc: imchifan@163.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #19699: LIKE with a trailing escape fails to raise SQLSTATE
 22025 for empty input
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Comments: In-reply-to shihao zhong <zhong950419@gmail.com>
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shihao zhong <zhong950419@gmail.com> writes:
+	 * ... this is cheap enough to repeat in
+	 * recursive calls.

This claim is unsubstantiated.  Even if it were, I fail to understand
why it's necessary to expend any cycles whatsoever on this point.
Who cares if we don't throw that error?

			regards, tom lane