v0.1.41

What's Changed

• fix: read and write pool stats were incorrect, didn't account for clients waiting for a connection
• feat: add slow query parse logging @frodsan
• feat: token caching for external identity providers @MagicAbdel
• feat: add flattened JSON log format support @kitop
• refactor: use rust_decimal's builtin PG encode/decode @sgrif
• feat(mtls): add option to validate CN matches username (passwordless client auth)
• fix(replication): distribute destination omni among the subscribers (fixes potential deadlock) @meskill
• test(resharding): more resharding tests @meskill
• refactor: yeet (remove) unused serde impls for Numeric @sgrif
• feat(replication): add retry logic for transient errors (e.g. TPC connection reset) @meskill
• fix: maintain Numeric scale when computing avg() across shards @sgrif
• fix(prepared_statements): full rewrites extended as well (fixes prepared_statements = "full") @meskill

New Contributors

• @frodsan made their first contribution in #972
• @kitop made their first contribution in #987
• @sgrif made their first contribution in #989

Full Changelog: v0.1.40...v0.1.41

v0.1.40

What's Changed

• feat(replication): add support for replica identity full @meskill
• fix(protocol): add handling for fastpath function calls @meskill
• fix: retrying known incorrect passwords repeatedly
• fix: new clients blocked from connecting due to stale pool info
• feat: better error message for LIMIT parser
• feat(pool): jitter for server_lifetime @frangz
• feat: support for mTLS / client certificates @lars-berger
• fix: decode + as space in options startup parameter @matteosilv

New Contributors

• @frangz made their first contribution in #963
• @lars-berger made their first contribution in #969
• @matteosilv made their first contribution in #976

Full Changelog: v0.1.39...v0.1.40

v0.1.39

What's Changed

• feat: OTEL exporter with easy Datadog integration
• feat: support pg protocol version negotiation for frontend clients using v3.2 @sarajmunjal
• feat: persist 2pc transaction state to disk @willothy
• fix: RELOAD/RECONNECT broke automatic role detection temporarily
• fix(resharding): proper handling for toasted data for UPDATE @meskill
• fix: set soft NOFILE limit to hard
• fix: remove the need for prepared_statements = "extended_anonymous"
• chore: parallelize CI
• docs: correct two_phase_commit_auto default to false @willothy

New Contributors

• @sarajmunjal made their first contribution in #926
• @willothy made their first contribution in #937

Full Changelog: v0.1.38...v0.1.39

v0.1.38

What's Changed

• feat: allow using SCRAM hash in users.toml as password_hash, if using server_auth = "rds_iam"; no passwords stored in any pgdog config file anymore
• feat: add retries for COPY_DATA command (used in resharding); allows to retry long-running COPY operations instead of failing @meskill
• feat: server_auth with Microsoft Workload Identity @MagicAbdel
• feat: parse query comments using custom, faster parser; speed up the parser by 50%, 15% TPS improvement across the board when using simple protocol (e.g. Rails with prepared_statements: false)
• fix: support servers that don't allow query cancellation (e.g., chaining RDS Proxy and PgDog now works)
• fix: crashes in edge cases when query_parser_engine = "pg_query_raw"
• feat: add max_pool_size, alias for default_pool_size (and pool_size)
• fix: re-initialize pub/sub channel after failover
• fix: add proper handling for pool restarts during resharding @meskill

New Contributors

• @MagicAbdel made their first contribution in #906

Full Changelog: v0.1.37...v0.1.38

v0.1.37

What's Changed

• fix: add bounds checks to some buffer accesses by @jaggederest
• fix: ProtocolOutOfSync error
• fix: count(*) in query broke CTE write check
• fix: return ProtocolViolation instead of syntax error in admin DB; makes tools like pgcli work out of the box
• feat: support multiple user/server passwords; supports zero-downtime password rotation
• feat: handle SET in single-primary / only replicas configuration automatically
• feat: add regex parser trigger to minimize parsing when not needed
• feat: add parallel copy override for speeding up table copy during resharding
• feat: add log throttle, to suppress duplicative logs during error storms
• feat: detect advisory locks with regex
• feat: support arrays as aggregate targets in cross-shard queries @jaggederest

Full Changelog: v0.1.36...v0.1.37

v0.1.36

What's Changed

• feat: parallelize copy data & schema sync across shards
• feat: change default setting value for query_cache_limit to 1000 to avoid heavy memory usage on first deployment
• feat: log warning if re-sharding replication is missing rows; this if only impactful is using copy-data without --replication-only flag and shouldn't happen under normal state
• feat: add 53-bit unique ID generator for apps that pass IDs directly to JS frontends
• feat: add user-friendly interface to create sharded sequences (pgdog.install_sharded_sequence pl/pgsql function)
• fix: use correct backend data type for cross-sharded count(*), fixes count(*)::int returning incorrect count
• fix: oid is u32, not i32; affected old databases with schema churn (oid exceeded 2.2B)
• fix: omnisharded table re-sharding: copy and replication copied the same table N times (N = number original shards)
• chore: regression testing for unique id
• chore: migrate to RWX for CI by @kylekthompson
• chore: resharding integration tests
• fix: detect SELECT ... FOR UPDATE inside CTEs
• fix: potentially dropping child table rows during streaming replication / re-sharding

New Contributors

• @kylekthompson made their first contribution in #862

Full Changelog: v0.1.35...v0.1.36

v0.1.35

What's Changed

• feat: DDL-only/DML-only mirroring
• fix: much faster schema loading query, works with databases with many tables
• fix: invalid keep-alive settings are just a warning now, won't cause a crash
• fix: race in extended_anonymous prepared statements
• fix: deadlock in sharded SELECT ... WHERE IN ($1, $2, $3)
• fix: handle LIMIT $1 where $1 is null using the extended protocol
• fix: logical replication Delete message generated incorrect parameters with compound identity columns
• chore: add postgres.js tests to CI

Full Changelog: v0.1.34...v0.1.35

v0.1.34

In-transaction connections deadlock

If you're using v0.1.31 or later, please upgrade to v0.1.34 asap. This release fixes a deadlock caused by clients disconnecting mid-transaction.

What's Changed

• fix: client disconnect inside transaction caused deadlock
• chore: fix clippy issues by @meskill

Full Changelog: v0.1.33...v0.1.34

v0.1.33

What's Changed

• feat: PgDog-supported plugin for routing queries using table names (e.g., for primary-only routing)
• feat: allow passthrough auth user to change its password
• fix: Passthough -> Passthrough typo @rissson
• fix: mirror prepared statement mode in session pooling @costi
• fix: correctly handle Relation message sent inside transaction during logical replication (used for resharding)
• fix: correctly forward only one Postgres error to the client, using the error code provided by Postgres server
• fix: correctly handle FATAL / PANIC errors (force close the connection in the pooler) without banning host
• fix: dependabot reporting security issues in integration tests repo-wide (e.g., Rails, Python, etc.) @meskill

New Contributors

• @rissson made their first contribution in #829
• @costi made their first contribution in #827

Full Changelog: v0.1.32...v0.1.33

v0.1.32

What's Changed

• feat: weighted load balancing
• fix: schema sharding in session mode with cross_shard_disabled
• feat: add configurable log format and level by @levish0

New Contributors

• @levish0 made their first contribution in #822

Full Changelog: v0.1.31...v0.1.32