Datastore now supports using range and inequality filters on multiple fields in a single query

## Feature Datastore now supports using [range and inequality filters on multiple fields](https://cloud.google.com/datastore/docs/multiple-range-fields) in a single query. This feature is in [Preview](https://cloud.google.com/products#product-launch-stages). ## Feature Support for [Query Explain](https://cloud.google.com/datastore/docs/query-explain-analyze). This feature is in [Preview](https://cloud.google.com/products#product-launch-stages). Query Explain lets you submit queries and receive detailed query plan, billing and performance statistics on query execution in return. It helps you understand how your queries are executed, showing you inefficiencies. It functions like the `EXPLAIN [ANALYZE]` operation in many relational database systems. For more information, see the [guide for Query Explain](https://cloud.google.com/datastore/docs/query-explain-analyze).