Text indexes

- [Instructor] Now, let's move on to regular expressions…and searching within text fields.…In order to best support this…somewhat expensive operation,…let's first create a text index.…A text index, as you would probably expect,…indexes the text of the documents in the collection.…So, you can search for strings…and even use regular expressions with the documents.…Note that a collection can have, at most, one text index,…though it can include multiple fields.…Pick your field or fields carefully…to ensure that clients can access…the data they're looking for.…

Make sure your Mongo server is running,…and start the Mongo client.…Switch to learning_mongo.…Now, we can make an index.…So, we're going to do db.tours.createindex,…and we'll create the index on…tourDescription…and tourBlurb,…and it was created.…Now, let's find out which of the tours involves wine.…

So, we have db.tours.find,…and then we're going to look in the text,…search:"wine".…Let's go ahead and make that pretty.…Nice.…So, we've got all of the…tours that involve wine,…