full-text-indexing

I had a program running for 2 days to build a Lucene index for around 160 million text files, and after the program ended, I tried searching the index and found the index was not correctly built, indexReader.numDocs() returned 0. I checked the index directory, it looked good, all the index data seemed to be there, the directory is 1.5 Gigabytes in size. I checked my code and found that I forgot to call indexWriter.optimize() and indexWriter.close(), I want to know if it is possible to re-optimize() the index so I don't need to rebuild the whole index from scratch? I don't really want the

How do I list all tables / columns in my database that have a full-text index? select distinct object_name(fic.[object_id]) table_name, [name] column_name from sys.fulltext_index_columns fic inner join sys.columns c on c.[object_id] = fic.[object_id] and c.[column_id] = fic.[column_id] Sadra Abedinzadeh This one gives you more information SELECT t.name AS TableName, c.name AS FTCatalogName , i.name AS UniqueIdxName, cl.name AS ColumnName, cdt.name AS DataTypeColumnName FROM sys.tables t INNER JOIN sys.fulltext_indexes fi ON t.[object_id] = fi.[object_id] INNER JOIN sys.fulltext_index_columns

I asked a related question previously, and as suggested by the poster there have created this new question as a follow up: MongoDB full text search - matching words and exact phrases I was having some problems with unexpected results when using the full text search functionality in MongoDB, specifically when searching for a mixture of words and phrases. Using this helpful example provided by the poster in the previous question... > db.test.drop() > db.test.insert({ "t" : "I'm on time, not late or delayed" }) > db.test.insert({ "t" : "I'm either late or delayed" }) > db.test.insert({ "t" :

Let's say i have an "articles" table which has the columns: article_text: fulltext indexed author_id: indexed now i want to search for a term that appears in an article that a particular arthor has written. so something like: select * from articles where author_id=54 and match (article_text) against ('foo'); the explain for this query tells me that mysql is only going to use the fulltext index. I believe mysql can only use 1 index, but it sure seems like a wise idea to get all the articles a particular author has written first before fulltext searching for the term... so is there anyway to