Vitess v2.0.0-beta.1

Changes since v2.0.0-alpha5

Client Libraries

• VTGateV3 Go driver
  can now also support certain types of VTGateV2 queries
• Publish PHP client to Packagist
• Refactor PHP client for better standards compliance
• PHP client returns associative array rows
• Java client is asynchronous by default
• Java client now returns 0 when converting SQL NULL to primitive types
• Python client now defaults to gRPC
• More sample clients for examples/local
  • In addition to Python,
    there are now sample clients for Go,
    PHP,
    and Java.

Query Service

• query.proto revamp
  • Fix NULL handling in new proto3-based query result format.
  • Unify type system for bind variables and query results.
• query_rules improvements
  • Improved JSON syntax for bindvar constraints.
  • Debug URL for viewing rule sets.
• Support REGEXP and RLIKE in
  SQL parser

Build Dependencies

• Default ZooKeeper version upgraded
  from 3.3.5 to 3.4.6.
• Update to gRPC 0.13
• Support building on OS X

Deployment and Management

• Add vtctld server to vtcombo
• Kubernetes config updates
  • Use Kubernetes DNS for service discovery
    and etcd bootstrap.
  • Kubernetes example for MySQL 5.6.
  • Use Kubernetes proxy to link from vtctld to vttablet status pages.
• Make MySQL users and privileges configurable
  when bootstrapping MySQL data directory.
  • Uses mysql_install_db and init_db.sql
    instead of extracting the old mysql-db-dir.tbz archive.
• Support semi-sync without async fallback
• Remove old vtctld UI files
  • Deployments no longer need to include go/cmd/vtctld/templates folder or
    set -templates flag on vtctld.
• Add option to bypass sanity check in ApplySchema
• Print human-readable tables for CLI queries
  • e.g. for ExecuteFetchAsDba