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Issue with Title Search with 'Contains'

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I went looking for pictures of train trestles so did a search of photos containing 'train' in the TITLE. The return seem to find pictures containing 'rain'. I'm not sure if I'm doing something wrong or this is a bug? Thoughts? Thanks

1638367585740.png
 

Y.K

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Victoria explains the differences in the section: “How can I use the Text filters to do AND or OR filters?” Page 532 of the “Adobe Lightroom Classic - The Missing FAQ (9.4-2020)”. which, judging from your badge, you can presumably refer to.
 
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Thanks. Yes I tried that. My question is around the proper use of CONTAINS.
It’s simple. “Contains: rain” means any word that contains the letters ‘rain’. Because ‘train’ contains these letters, that word will also be found. If you do not want that, and only want to find the full word “rain”, then use ‘contains words’.
 

Y.K

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Amazingly, I can reproduce this in a hit-and-miss kind of way. This should not be possible.
View attachment 17641

It's interesting to note, that although the Tile field is Rainbow ball, there is a keyword Freya puppytraining, which apparently confuses LrC - perhaps just another bug, as you are not searching for keywords or All metadata fields.
 
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What more do you need Cletus? You can see the criteria I created in the image.

I missed the this was on the filter bar and not a smart collection.

Try the criteria in a Smart Collection and see if you get the same results. It disturbs me that you and others are having this result on the filter bar.


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Try the criteria in a Smart Collection and see if you get the same results. It disturbs me that you and others are having this result on the filter bar.
I can reproduce this issue, but only with "train" and "rain". And yes, I get the same wrong result when using a smart collection.
This is so weird. Also disturbing, since I depend on keywords a lot!

1638373184270.png
 
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It only occurs with Title, and only when the search string is of the form "tx" and the Title contains the word "x". It's an old bug reported in 2014:
https://community.adobe.com/t5/ligh...sn-t-contain-rule-and-letter-t/idi-p/12251838

Maybe if you add your constructive opinions and Upvotes, Adobe will finally fix it. (I'm Charlie Brown with the football, eternally hoping that Adobe won't snatch the football away.)

There have been similar bugs with text search reported before, some fixed, some not (I think I'm missing some):

Keywords Contain Words ("big mallard ducks", 2010, fixed 2015)
Caption Ends With (2011, unfixed)
Filename Starts With (2011, fixed 2016-19)

I think the root cause of the problem is that LR's text search is implemented with a third-party full-text indexing module for the SQLite database. Either that module has bugs or, more likely, LR's use of it is buggy. And whoever on the LR team implemented it is long gone from that team, along with the knowledge of how to use that module. (This is similar to many other bugs in LR involving third-party modules, e.g. color management in the web gallery preview, the Map module on high-res Windows displays.)
 
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Looks like the bug is confirmed but currently considered low priority. More votes on it will help raise the priority a bit though.
 

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Looks like the bug is confirmed but currently considered low priority. More votes on it will help raise the priority a bit though.

Since it may take a very long time to correct the Title Contains bug, LrC users should use the Title Contains Words option instead. On all my tests, so far, it seems to work correctly. Do you happen to know any problem with the Contains Words implementation, Victoria?
 
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Not that I know of, but it's not something I've particularly been tracking.
 
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