beta-2023-05-31

2023-05-31 Release Notes

What's New

• Revamped helm chart with changes to align with best practices and support
  multiple cloud platforms. a51ac40 b739acb 931d0b9 c4ff836
• Created the proptest-stateful
  crate and added extensive stateful property tests.
• ReadySet can now infer the database_type from an upstream_db_url,
  making the --database-type argument optional. If --database-type is
  provided with an upstream_db_url, readyset will validate the database
  type. 8ad4482
• Improve error messages for why something is unsupported when running
  without an upstream database. 41f3532
• Add --controller-address option that exports prometheus metrics for the
  readyset-server when running in standalone mode. 688ab93
• Add replication-server-id flag to allow multiple readyset deployments to
  connect to the same upstream db. Each deployment must have a unique
  replication server id. 896b423
• Add logging that uses row estimates to report snapshotting progress.
  9f85776
• Added an experimental feature to automatically inline
  placeholders in a query with literal values when the placeholders are
  unsupported, so that the query can be run against ReadySet. This
  feature is enabled with the --experimental-placeholder-inlining flag.
  This feature is experimental as it could degrade the performance of
  the ReadySet instance if too many inlined instances of a query are
  created. It is recommended that you drop the cache of any query with
  inlined placeholders with high cardinality. 4a31acd
• Add support for INT2, INT4, and INT8 postgres type aliases. e9518f1

Performance Improvements

• Controller requests now run asynchronously. 120fb30
• RocksDB compaction is now done as a background process. 51d5a4c
• Tuned the retry behavior of extend_recipe. 1b77183
• Initialize persistent state in a different thread. c78bd61
• Numerous miscelaneous query performance optimizations.

Bug Fixes

• Update metrics-rs crate to 0.21 to fix a bug in summary
  calculations where they
  were not being calculated over sliding windows of
  time.
  1557db0
• Fixed a bug where DDL actions were lost when we encountered a particular
  error in replication. 1101215
• Fixed an issue where we returned an empty value instead of BEGIN for
  certain transactional queries. fd08ff1
• Fixed an incorect timezone conversion that prevented lookups into a date
  field using timestamps that had the same date. 33990c7
• Fixed a bug with optimized string serialization. 5dec2e1
• Fixed a panic if offset is longer than result set, specifically in the case
  that a query, has ORDER BY, LIMIT, and OFFSET, has aggregates with a
  group by, and doesn't filter by a primary or unique column. 5d9c5ce
• Fixed a panic that could happen if a connection failed during a migration.
  020f58a
• Fixed a bug where the ordering of project and distinct nodes would return
  incorrect results. 236ed82
• Properly mark PostgreSQL partitioned tables as unsupported. 2abffe1
• Fix handling of a partial replay where a source node has been dropped.
  94be3fc
• Properly handle creating tables with FKs. f10319e
• Properly handle replication offsets for uninitialized base tables. 582b68f