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<p class="MsoPlainText">Hi Roy,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">It's something going wrong with the period…or our interpretation of it…!<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">If I replace it with the [:punct:] set I get some very weird results.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Ie. This works as I expect.<o:p></o:p></p>
<p class="MsoPlainText">select * from foo where name not similar to '[-[:UPPER:][:punct:]]+';<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><span style="font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">name <o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">
<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">(0 rows)<o:p></o:p></span></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">But this doesn’t:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">select * from foo where name not similar to '[-[:UPPER:].]+';<o:p></o:p></p>
<p class="MsoPlainText"><span style="font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">name <o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">HANN <o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">LARGE-HANN<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">ST.HANN <o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">
<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-family:"Courier New"">(3 rows)<o:p></o:p></span></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Marty<o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-US">-----Original Message-----<br>
From: Roy Hann [mailto:specially@processed.almost.meat] <br>
Sent: 23 July 2019 12:06<br>
To: info-ingres@lists.planetingres.org<br>
Subject: [Info-ingres] Am I doing SIMILAR wrong?</span></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I am trying to write a simple data validation query looking for names<o:p></o:p></p>
<p class="MsoPlainText">containing impermissible characters. I am falling down over names<o:p></o:p></p>
<p class="MsoPlainText">containing a '.' character. Here's what I'm seeing:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">* create table foo ( name varchar(10) not null );<o:p></o:p></p>
<p class="MsoPlainText">* insert into foo values ('HANN'),('LARGE-HANN'),('ST.HANN');<o:p></o:p></p>
<p class="MsoPlainText">* \g<o:p></o:p></p>
<p class="MsoPlainText">Executing . . .<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">(3 rows)<o:p></o:p></p>
<p class="MsoPlainText">continue<o:p></o:p></p>
<p class="MsoPlainText">* select * from foo \g<o:p></o:p></p>
<p class="MsoPlainText">Executing . . .<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">|name |<o:p></o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">|HANN |<o:p></o:p></p>
<p class="MsoPlainText">|LARGE-HANN|<o:p></o:p></p>
<p class="MsoPlainText">|ST.HANN |<o:p></o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">(3 rows)<o:p></o:p></p>
<p class="MsoPlainText">continue<o:p></o:p></p>
<p class="MsoPlainText">* select * from foo where name not similar to '[-''ABCDEFGHIJKLMNOPQRSTUVWXYZ]+' \g<o:p></o:p></p>
<p class="MsoPlainText">Executing . . .<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">|name |<o:p></o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">|ST.HANN |<o:p></o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">(1 row)<o:p></o:p></p>
<p class="MsoPlainText">continue<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">---------------------------<o:p></o:p></p>
<p class="MsoPlainText">So far, so good. But now...<o:p></o:p></p>
<p class="MsoPlainText">---------------------------<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">* select * from foo where name not similar to '[-.''ABCDEFGHIJKLMNOPQRSTUVWXYZ]+' \g<o:p></o:p></p>
<p class="MsoPlainText">Executing . . .<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">|name |<o:p></o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">|HANN |<o:p></o:p></p>
<p class="MsoPlainText">|LARGE-HANN|<o:p></o:p></p>
<p class="MsoPlainText">|ST.HANN |<o:p></o:p></p>
<p class="MsoPlainText">+----------+<o:p></o:p></p>
<p class="MsoPlainText">(3 rows)<o:p></o:p></p>
<p class="MsoPlainText">continue<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">---------------------------------------------------------------------<o:p></o:p></p>
<p class="MsoPlainText">I am pretty sure '.' is not a special character in a character class,<o:p></o:p></p>
<p class="MsoPlainText">and sure enough, if I try to escape it....<o:p></o:p></p>
<p class="MsoPlainText">---------------------------------------------------------------------<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">* select * from foo where name not similar to '[-\.''ABCDEFGHIJKLMNOPQRSTUVWXYZ]+' escape '\' \g<o:p></o:p></p>
<p class="MsoPlainText">Executing . . .<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">E_AD101D Illegal pattern match specified: Illegal ESCAPE sequence.<o:p></o:p></p>
<p class="MsoPlainText"> The ESCAPE char must be followed by one of:<o:p></o:p></p>
<p class="MsoPlainText"> `[' (left bracket)<o:p></o:p></p>
<p class="MsoPlainText"> `]' (right bracket)<o:p></o:p></p>
<p class="MsoPlainText"> `(' (left paren)<o:p></o:p></p>
<p class="MsoPlainText"> `)' (right paren)<o:p></o:p></p>
<p class="MsoPlainText"> `|' (vertical bar)<o:p></o:p></p>
<p class="MsoPlainText"> `^' (circumflex)<o:p></o:p></p>
<p class="MsoPlainText"> `-' (minus sign)<o:p></o:p></p>
<p class="MsoPlainText"> `+' (plus sign)<o:p></o:p></p>
<p class="MsoPlainText"> `*' (asterisk)<o:p></o:p></p>
<p class="MsoPlainText"> `_' (underscore)<o:p></o:p></p>
<p class="MsoPlainText"> `%' (percent)<o:p></o:p></p>
<p class="MsoPlainText"> `?' (question mark)<o:p></o:p></p>
<p class="MsoPlainText"> `{' (left brace)<o:p></o:p></p>
<p class="MsoPlainText"> another ESCAPE char.<o:p></o:p></p>
<p class="MsoPlainText"> (Tue Jul 23 11:55:21 2019)<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Am I doing something wrong? I can't for the life of me see it.
<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">FYI, this is II 11.0.0 (su9.us5/100)<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Roy<o:p></o:p></p>
<p class="MsoPlainText">_______________________________________________<o:p></o:p></p>
<p class="MsoPlainText">Info-ingres mailing list<o:p></o:p></p>
<p class="MsoPlainText">Info-ingres@lists.planetingres.org<o:p></o:p></p>
<p class="MsoPlainText">https://lists.planetingres.org/mailman/listinfo/info-ingres<o:p></o:p></p>
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