full-text-search

问题 Issue: I am using the MYSQL and PHP latest versions. We are facing the issue in the MYSQL FULLTEXT search. It does not work with the hypen(-) and plus(+) characters. Example:1 In the industry table, 'industry_size' field have the following values: 1. 1 2. 2 - 9 3. 10 - 15 If i am using the search term 2 - 9 , it will show the empty result but the correct answer is 2 - 9 . Example:2 In the user table, 'phone_number' field have the following values: 1. 9856237845 2. +91 8945785698 3. +91

问题 I am trying to match a table with keywords against a text. Problem is, that the query does not return exact matches, but only the most relevant ones: SELECT name, name_safe, MATCH name AGAINST ('".$ad['text']."') as importance FROM $T2 WHERE MATCH name AGAINST ('".$ad['text']."') AND cat_type = 4 ORDER BY importance DESC LIMIT 1 $T2 contains keywords like hunde welpen chihuahua I only want the query to return a hit if it is an exact match. So a search for "welpen" should not return a result.

问题 When using the LIKE/ILIKE operator in PostgreSQL 9 is it possible to match word boundaries without having to use full blown ~ operator regular expressions? For example SELECT 'Super fast training' ILIKE '%train\M%' as match; Where \M is the boundary at the end of a word and match returns false Thanks, Mark 回答1: you can do it with following trick: SELECT ' ' || 'Super fast training' ILIKE '%train %' but I don't hink so it is a good idea. You can use regular expression or PostgreSQL fulltext

问题 Firstly i apologise if the terminology i use is incorrect as i am learning elasticsearch day by day and maybe use incorrect phrases. After spending several days trying to figure this out and pulling my hair out i seem to be hitting brick walls every-time. I am trying to get elasticsearch to provide a document count for each returned result, I will provide an example below.. { "suggest": { "text": "aberdeen", "city": { "completion": { "field": "city_suggest", "size": "2" } }, "street": {

问题 I may be looking at this incorrectly, but right now, if a user enters certain special characters in a search bar, the app will crash. These include \ and '. The apostrophe is a problem, in that words like "isn't" and "doesn't" will cause a crash How should I go about working around this problem? Many thanks 回答1: Before doing a search using the search string, pre-filter it, like this: NSString *safeSearchString = [[searchString componentsSeparatedByCharactersInSet:[[NSCharacterSet

问题 I was wondering if SQL Server is actually utilizing its fulltext index on searches that can be in the middle of text (such as LIKE %searchKeyword%)? I forgot where I read it, but I did read somewhere that the fulltext index would only be utilized when it is used in a "StartsWith" manner (searchKeyword%) where you search for a LIKE with a fixed beginning and a variable ending. Please let me know if this is true? 回答1: Full-text indexes (if you have them, they aren't enabled by default) are

问题 THe partial matching on my search is not working correctly. When I type in "Dublin Ireland" into my search then it correctly returns all the results in Dublin, Ireland. However, when I type "County Dublin Ireland" then it doesn't return any. I've set up an EdgeNGramFilter in my schmea.xml like so: <filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="10"/> And I'm doing a fulltext search on the sunspot end on location: search_results = Events.solr_search do fulltext

问题 I am moving allong in my project and come to a crossroads dealing with the file content. I have successfully created a working index that has some classification fields but I am know looking to have keyword search applied to the file contents. My issue is I am not sure if passing lucene a reader would translate to the API indexing the entire file contents. I did some searching online and found suggestions that an IFilter would be needed is that true? It seems somewhat complicated. Anyways my

问题 I want to develop an application, the small part of which will search the string of message from an EditText in the Inbox of my device.... I have referred some links like Search sms Inbox https://stackoverflow.com/questions/8941228/how-to-read-all-sms-from-inbox-in-android-2-2-and-above http://androidforums.com/android-applications/1773-how-read-sms-android.html Read all SMS from a particular sender but could not make it possible... can anyone plz help me with a useful piece of code...Thanks

问题 Is the following SQL susceptible to SQL injection via the @SearchWord parameter? I want to use parameters with the FormsOf function, but the only guide to doing so I've found is in this Stack Overflow question: How to pass parameter to FormsOf function in sql server However the solution seems to be to use a bit of dynamic SQL, and I was wondering if that would be susceptible to SQL injection. What would happen in the following example if @searchWord contained a SQL injection type string? Is