In the talk we discuss the progress over the last year and what we'll be working on over the next few months.

1. Presto Update (2016)
Martin Traverso
3/22/2016

2. By The Numbers
▪12 months
▪43 releases (0.99 to 0.142)
▪104 contributors (150 total)
▪2355 commits (6946 total)
▪3411 files changed
▪319,734 insertions(+) 79,818 deletions(-)

3. Language Features
▪CREATE TABLE
▪Table Properties
▪ALTER TABLE, CREATE TABLE AS, DROP
▪INSERT/DELETE

4. Language Features
▪CUBE, ROLLUP, GROUPING SETS
▪Uncorrelated scalar subqueries
▪Non-equality predicates for inner joins

5. Language Features
▪New functions (e.g., bitwise operations)
▪TRY
▪VARCHAR(length)
▪Binary literals
▪Unicode support
▪CALL

6. Security
▪Authentication (Kerberos)
▪Authorization
▪Extensible

7. Performance
▪Physical awareness
▪Dictionary-aware execution
▪Structural types representation

8. Workload Management
▪Configurable admission queues
▪Memory management
▪Network topology-aware scheduling
▪Adaptive split concurrency
▪Draining

9. Hive
▪INSERT/DELETE
▪S3 integration improvements
▪New Parquet reader
▪HA metastore support

10. Miscellaneous
▪Integration testing suite
▪Blackhole connector
▪Redis connector
▪RPM package
▪Tableau web connector
▪Query plan/execution visualization

11. Next

12. Presto@Facebook
▪Warehouse
▪Batch
▪Interactive
▪Application analytics
▪A/B testing
▪User-facing products

13. Language
▪Data Types
▪DECIMAL, FLOAT, SMALLINT, INTEGER
▪CHAR(n), BINARY(n), VARBINARY(n)
▪Correlated subqueries
▪Non-equi outer join
▪Lambdas

14. Language
▪Prepared statements
▪GRANT/REVOKE
▪Materialized query tables
▪Simple query rewrites
▪EXPLAIN ANALYZE

15. Performance
▪Joins and aggregations
▪Structural types
▪Task parallelism
▪Colocated joins
▪Communication layer

16. Workload Management
▪Resource groups and queueing
▪Parallelism vs memory tradeoff

17. Hive
▪ORC writer
▪RCFile reader/writer
▪Kerberos support for HDFS/Metastore
▪Bucketed tables
▪Transaction support (INSERT OVERWRITE)

18. Optimizer
▪Cost-based search
▪Connectors can participate
▪Whole subquery pushdown

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