What's New in v19.2.0-rc.2

This version of CockroachDB is no longer supported. For more details, see the Release Support Policy.

October 28, 2019


A denial-of-service (DoS) vulnerability is present in CockroachDB v19.2.0 - v19.2.11 due to a bug in protobuf. This is resolved in CockroachDB v19.2.12 and later releases. When upgrading is not an option, users should audit their network configuration to verify that the CockroachDB HTTP port is not available to untrusted clients. We recommend blocking the HTTP port behind a firewall.

For more information, including other affected versions, see Technical Advisory 58932.

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Docker image

$ docker pull cockroachdb/cockroach-unstable:v19.2.0-rc.2

General changes

SQL language changes

Bug fixes

  • Fixed multiple bugs relating to COPY FROM PARENT in replication zones. #41677
  • The system.replication_stats table no longer incorrectly shows some ranges belonging to table partitions as over-replicated. #41700
  • Fixed a bug that resulted in some queries returning an "index join must be against primary index" error. #41723
  • Fixed a bug where backfills could lead to certain changefeed row updates never being emitted. #41721
  • Fixed a bug that could cause changefeed row updates to be emitted at a timestamp less than or equal to an already forwarded resolved timestamp. #41714
  • Fixed a bug in cloud storage sink file naming for changefeeds that could violate ordering in the presence of schema changes. #41693

Performance improvements

  • Increased BACKUP parallelism in some cases. #41729
  • Improved the performance of generating the system.replication_* tables for large clusters. #41757
  • Improved performance of bulk ingestion. #41768

Doc updates


This release includes 32 merged PRs by 19 authors.

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