v1.3.0 Release Notes

Released July 15, 2019.

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File Format Change

There are two ways to address the above note.

• If you don't care about preserving your existing data, then delete your cluster, and create a new cluster with 1.3.0.
• If you want to continue using your existing data, then please save your data (in the form of SQL statements), delete the cluster, create a new cluster with 1.3.0 and then load the previously saved data.

YSQL Changes

• [YSQL] Enable DO statements (a.k.a anonymous blocks).#1656 
• [YSQL] Fix transaction read restart logic causing stale reads and lost writes.#1646 
• [YSQL] Enable beta-features by default.#1639 
• [YSQL] Fix value overwrite check in REPEATABLE READ isolation mode in YSQL.#1577 
• [YSQL] Allow SELECT from sequences.#999 
• [YSQL] Avoid auto-retrying non-DML requests.#1333 
• [YSQL] Set the read point correctly at REPEATABLE READ isolation when turning a read-only transaction into a read-write one.
• [YSQL] Add new key column ybindexkeysuffix to YSQL index table [format change].#1058 
• [YSQL] Add support for setval().#1003 
• [YSQL] YSQL catalog cache consistency checking via tablet server shared memory.#1457 
• [YSQL] Fix persistence issue with catalog version.#1629 

YCQL Changes

• Added built-in function toJson() for YCQL SELECT statement.#992 

System Improvements

• Add Master UI page for tracking async tasks.#1145 
• Use rw_spinlock in meta cache to decrease lock contention.#1667 
• Change default maximum per-tablet RPC batch size to 32mb.#1440 
• Fix for flushing old tablets based on memory usage.#1672 
• Replaced OS_LINUX with linux for ifdefs.#1711 
• Unified yb::SequentialFile and rocksdb::SequentialFile.#1661 
• Add a compact_table command to yb-admin.#1735 
• Automatically filter out YSQL sys catalog tables from YBClient calls.#1537 
• Add TLS support to java yb-client.
• Allow pausing a compaction when another compaction with a higher priority is scheduled.#1314 
• Fixed Tablet::Truncate to re-enable auto compactions.1765 
• Fix race condition in PriorityThreadPool.#1775