v1.2.9 release notes

Released May 21, 2019.

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Docker

docker pull yugabytedb/yugabyte:1.2.9.0-b14

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 1.2.9.
• 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 1.2.9 and then load the previously saved data.

YSQL changes

• Add support for identity column. #1267
• Support INSERT INTO … ON CONFLICT clause, #1109
• Set default prefetch limit to 4096, #1206
• Disable logical replication, #1323
• Add support for “COMMENT ON” statements, #1332
• Fix indexes on temporary tables, #1349
• Store object ids as unsigned integer in DocDB, #1392
• Disallow INTERVAL data type in a primary key or secondary index column, #1397
• Support CREATE and DROP DOMAIN, #1310

YCQL changes

• JSON UPSERT: Avoid decoding as int to check for array offset, #1039
• Set default upper limit for CQL prepared statement cache size, #1406

Bug fixes

• Pass upperbound to intent aware iterator, #1233
• Fix Snappy detection outside of RocksDB, #1300
• Added saving Raft group replica superblock after migration, #1403

System improvements

• Implement RPC heartbeats, #950
• Add master readiness check, #1076
• Expose tablet servers page as a JSON
• Add gflag to turn on per-row consistent paging queries in transactional tabeles, #1311
• Stop applying writes when RocksDB requires a delay, #1300
• Make fast WAL recovery the default, #1370
• Reduce logging of RpcServerBase::get_current_user() and get_hostname(), #1380
• Add table of tablet-peer counts by AZ to YB master UI, #1328