Tagged Questions

Full text search involves searching documents, usually involving unstructured text, as opposed to searching text fields in a structured database.

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AppEngine Full Search API Location Distance

I am trying to get to get nearby documents working. I followed the documentation but the distance location is returning empty result and not sure why. This is what I am doing: Indexing documents: ...
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How to order search results from the gae index by time

I'm using gae's search API which is working but it can only order by date and not datetime. So how do I order results by time? Must I just store hours and minutes in the search index like numbers i.e. ...
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38 views

Regex to replace |foo| with abs(foo)

I've got a large LaTeX document, and I'm looking to change the formatting of places where I've used absolute-value notation. Ideally I'd do this automatically, but I'm unsure of how to construct the ...
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PHP/MySQL - Search Engine for heavy data [closed]

I have seen many posts but could not come to the decision. I have the following situation from which a search engine is going to be built: Large no. of records (like 2 million or so) - which is NOT ...
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How can you combine multiple PDF pages into one searchable PDF page? [closed]

I have scanned multiple business cards and now have a PDF file with over 500 pages (or cards). I would like to be able and create a page with 8 cards to a page and is still searchable. Example: If I ...
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2answers
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Multi term query in Sphinx: Which term matched which result?

I am using Sphinx and I am doing multi term searches. In the result array there is a 'matches' array, and a 'words' array, but I have no clue on how to link the both of them. I.E: I search for ...
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1answer
26 views

(.Net) Optimal data structure to find union of words between a sentence and dictionary

I am trying to find the most optimal way to compare words in a collection (hashset, list) to a document (like an essay, blog) for finding matching words. For example - I have the following ...
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Prepending an * (asterisk) to a Fulltext Search in MySQL

I understand that the asterisk is a wildcard that can be appended to the end of fulltext search words, but what if my searched keyword is a suffix? For example, I want to be able to search for "ames" ...
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“Warning Master Merge operation was not done…” What to do?

Have anyone encountered this error message in the SQL server log? Warning Master Merge operation was not done for dbid 56, objid 286624064, so querying index will be slow. Please run alter ...
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Intersect/merge results from several Sphinx indices

Good day, I wonder if it is possible to implement the following. For example, we have 2 indices: 1: Id, A, B, C, f1, f2. 2: Id, f3. where: fn - rt_field. A, B, C - attributes to return. Ids in the ...
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Mysql Full Text Index combining phrase and wild card

When using the mysql full text index search is it possible to combine both the phrase and wild card search. Example: In the database we have the following location name "Sydney Harbour". We want to ...
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1answer
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MySQL Full text search extremely slow on a AWS RDS large instance

I have a table having 14 million rows and i am trying to perform a full text search on this table. The query for this is performing really slow, it is taking around 9 seconds for a simple binary And ...
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MySQL Full-Text-Search (With Rank)

Hi i am currently struggling to implement a simple search feature for a blog like site. To simplified i have three tables Table user (user_id, username, and so on...) Table post (post_id, ...
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1answer
27 views

Lucene.net with large files

I was wondering if it was possible to index and store a number of large files each over 4GB in size. I had no problems doing so and searching the documents with one exception - I was not able to ...
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Doing Fulltext Searches within Left Joins

I am working on improving a search engine for my website and I think the best way to do this would be with Fulltext indexes and Left Joins. There are three tables (a user table, a "genres" table, and ...

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