There's really no direct open source equivalent, since BigQuery is a multi-tenant serverless database (more at https://cloud.google.com/blog/big-data/2016/01/bi

There's really no direct open source equivalent, since BigQuery is a multi-tenant serverless database (more at https://cloud.google.com/blog/big-data/2016/01/bigquery-under-the-hood https://cloud.google.com/blog/big-data/2016/01/bigquery-unde...). That said, there are plenty of open source projects that scale horizontally and let you run SQL faster than RDBMS - Presto, Impala, Spark, Druid, Hive, etc. Happy to answer more questions on BigQuery.