在 MongoDB 中创建用于文本搜索的索引
mongodbdatabasebig data analytics更新于 2026/1/9 17:22:17
让我们创建一个包含文档的集合 −
> db.demo331.insertOne({&"Words":"This is a MySQL"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e521c35f8647eb59e562089")
}
> db.demo331.insertOne({&"Words":"THIS is a MongoDB"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e521c36f8647eb59e56208a")
}
使用 find() 方法显示集合中的所有文档 −
> db.demo331.find();
将产生以下输出 −
{ "_id" : ObjectId("5e521c35f8647eb59e562089"), "Words" : "This is a MySQL" }
{ "_id" : ObjectId("5e521c36f8647eb59e56208a"), "Words" : "THIS is a MongoDB" }
以下是创建文本搜索索引的查询 −
> db.demo331.createIndex( {Words: "text" } );
{
"createdCollectionAutomatically" : false,
"numIndexesBefore" : 1,
"numIndexesAfter" : 2,
"ok" : 1
}
> db.demo331.find({$text:{$search:"MySQL"}});
这将产生以下输出 −
{ "_id" : ObjectId("5e521c35f8647eb59e562089"), "Words" : "This is a MySQL" }
