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| # Changelog of Vitess v18.0.3 | ||
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| ### Bug fixes | ||
| #### CLI | ||
| * [release-18.0] Fix some binaries to print the versions (#15306) [#15309](https://github.com/vitessio/vitess/pull/15309) | ||
| #### Evalengine | ||
| * [release-18.0] evalengine: Fix week overflow (#14859) [#14861](https://github.com/vitessio/vitess/pull/14861) | ||
| * [release-18.0] evalengine: Return evalTemporal types for current date / time (#15079) [#15084](https://github.com/vitessio/vitess/pull/15084) | ||
| #### General | ||
| * [release-18.0] Protect `ExecuteFetchAsDBA` against multi-statements, excluding a sequence of `CREATE TABLE|VIEW`. (#14954) [#14984](https://github.com/vitessio/vitess/pull/14984) | ||
| #### Online DDL | ||
| * [release-18.0] VReplication/OnlineDDL: reordering enum values (#15103) [#15351](https://github.com/vitessio/vitess/pull/15351) | ||
| #### Query Serving | ||
| * [release-18]: Vindexes: Pass context in consistent lookup handleDup (#14653) [#14911](https://github.com/vitessio/vitess/pull/14911) | ||
| * [release-18.0] evalengine bugfix: handle nil evals correctly when coercing values (#14906) [#14914](https://github.com/vitessio/vitess/pull/14914) | ||
| * [release-18.0] bugfix: Columns alias expanding (#14935) [#14955](https://github.com/vitessio/vitess/pull/14955) | ||
| * [release-18.0] Improve efficiency and accuracy of mysqld.GetVersionString (#15096) [#15111](https://github.com/vitessio/vitess/pull/15111) | ||
| * [release-18.0] In the same sqltypes.Type, Copy expression types to avoid weight_strings and derived tables (#15069) [#15129](https://github.com/vitessio/vitess/pull/15129) | ||
| * [release-18.0] make sure to handle unsupported collations well (#15134) [#15142](https://github.com/vitessio/vitess/pull/15142) | ||
| * [release-18.0] fix: ignore internal tables in schema tracking (#15141) [#15146](https://github.com/vitessio/vitess/pull/15146) | ||
| * [release-18.0] TxThrottler: dont throttle unless lag (#14789) [#15190](https://github.com/vitessio/vitess/pull/15190) | ||
| * [release-18.0] Avoid rewriting unsharded queries and split semantic analysis in two (#15217) [#15229](https://github.com/vitessio/vitess/pull/15229) | ||
| * [release-18.0] sqlparser: use integers instead of literals for Length/Precision (#15256) [#15268](https://github.com/vitessio/vitess/pull/15268) | ||
| * [release-18.0] Fix Go routine leaks in streaming calls (#15293) [#15300](https://github.com/vitessio/vitess/pull/15300) | ||
| * [release-18.0] Column alias expanding on ORDER BY (#15302) [#15331](https://github.com/vitessio/vitess/pull/15331) | ||
| * [release-18.0] go/vt/discovery: use protobuf getters for SrvVschema (#15343) [#15345](https://github.com/vitessio/vitess/pull/15345) | ||
| * [release-18.0] SHOW VITESS_REPLICATION_STATUS: Only use replication tracker when it's enabled (#15348) [#15361](https://github.com/vitessio/vitess/pull/15361) | ||
| * [release-18.0] Bugfix: GROUP BY/HAVING alias resolution (#15344) [#15381](https://github.com/vitessio/vitess/pull/15381) | ||
| #### Schema Tracker | ||
| * [release-18.0] discovery: fix crash with nil server vschema (#15086) [#15092](https://github.com/vitessio/vitess/pull/15092) | ||
| #### Throttler | ||
| * [release-18.0] examples: rm heartbeat flags (#14980) [#14999](https://github.com/vitessio/vitess/pull/14999) | ||
| #### VReplication | ||
| * [release-18.0] VReplication: Make Target Sequence Initialization More Robust (#15289) [#15307](https://github.com/vitessio/vitess/pull/15307) | ||
| * [release-18.0] VtctldClient Reshard: add e2e tests to confirm CLI options and fix discovered issues. (#15353) [#15471](https://github.com/vitessio/vitess/pull/15471) | ||
| #### VTCombo | ||
| * [release-18.0] Correctly set log_dir default in vtcombo (#15153) [#15154](https://github.com/vitessio/vitess/pull/15154) | ||
| #### vtexplain | ||
| * [release-18.0] vtexplain: Fix setting up the column information (#15275) [#15281](https://github.com/vitessio/vitess/pull/15281) | ||
| * [release-18.0] vtexplain: Ensure memory topo is set up for throttler (#15279) [#15284](https://github.com/vitessio/vitess/pull/15284) | ||
| #### vttestserver | ||
| * [release-18.0] Revert unwanted logging change to `vttestserver` (#15148) [#15149](https://github.com/vitessio/vitess/pull/15149) | ||
| * [release-18.0] use proper mysql version in the `vttestserver` images (#15235) [#15238](https://github.com/vitessio/vitess/pull/15238) | ||
| ### CI/Build | ||
| #### Build/CI | ||
| * [release-18.0] Fix relevant files listing for `endtoend` CI (#15104) [#15110](https://github.com/vitessio/vitess/pull/15110) | ||
| * [release-18.0] Remove concurrency group for check labels workflow (#15197) [#15208](https://github.com/vitessio/vitess/pull/15208) | ||
| * [release-18.0] bump `github.com/golang/protobuf` to `v1.5.4` (#15426) [#15427](https://github.com/vitessio/vitess/pull/15427) | ||
| * [release-18.0] Update all actions setup to latest versions (#15443) [#15445](https://github.com/vitessio/vitess/pull/15445) | ||
| #### General | ||
| * [release-18.0] Upgrade the Golang version to `go1.21.8` [#15407](https://github.com/vitessio/vitess/pull/15407) | ||
| ### Dependabot | ||
| #### Java | ||
| * [release-18.0] build(deps): bump io.netty:netty-handler from 4.1.93.Final to 4.1.94.Final in /java (#14863) [#14881](https://github.com/vitessio/vitess/pull/14881) | ||
| ### Documentation | ||
| #### Documentation | ||
| * [release-18.0] 18.0.3 release notes: ExecuteFetchAsDBA breaking change [#15013](https://github.com/vitessio/vitess/pull/15013) | ||
| * [release-18.0] Fix docs for unmanaged tablets (#15437) [#15473](https://github.com/vitessio/vitess/pull/15473) | ||
| ### Enhancement | ||
| #### Build/CI | ||
| * [release-18.0] Update paths filter action (#15254) [#15263](https://github.com/vitessio/vitess/pull/15263) | ||
| ### Performance | ||
| #### Throttler | ||
| * [release-18.0] Throttler: Use tmclient pool for CheckThrottler tabletmanager RPC [#15087](https://github.com/vitessio/vitess/pull/15087) | ||
| ### Regression | ||
| #### Query Serving | ||
| * [release-18.0] Subquery inside aggregration function (#14844) [#14845](https://github.com/vitessio/vitess/pull/14845) | ||
| * [release-18.0] Fix routing rule query rewrite (#15253) [#15258](https://github.com/vitessio/vitess/pull/15258) | ||
| #### Throttler | ||
| * [release-18.0] Enable 'heartbeat_on_demand_duration' in local/examples (#15204) [#15291](https://github.com/vitessio/vitess/pull/15291) | ||
| #### vttestserver | ||
| * [release-18.0] Fix logging issue when running in Docker with the syslog daemon disabled (#15176) [#15185](https://github.com/vitessio/vitess/pull/15185) | ||
| ### Release | ||
| #### General | ||
| * Back to dev mode after v18.0.2 [#14839](https://github.com/vitessio/vitess/pull/14839) | ||
| * [release-18.0] Code Freeze for `v18.0.3` [#15480](https://github.com/vitessio/vitess/pull/15480) | ||
| ### Testing | ||
| #### Build/CI | ||
| * [release-18.0] Use `go1.22.0` in upgrade tests [#15170](https://github.com/vitessio/vitess/pull/15170) | ||
| * [release-18.0] CI: Address data races on memorytopo Conn.closed (#15365) [#15370](https://github.com/vitessio/vitess/pull/15370) | ||
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| # Release of Vitess v18.0.3 | ||
| ## Summary | ||
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| ### Table of Contents | ||
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| - **[Major Changes](#major-changes)** | ||
| - **[Breaking Changes](#breaking-changes)** | ||
| - [ExecuteFetchAsDBA rejects multi-statement SQL](#execute-fetch-as-dba-reject-multi) | ||
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| ## <a id="major-changes"/>Major Changes | ||
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| ### <a id="breaking-changes"/>Breaking Changes | ||
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| #### <a id="execute-fetch-as-dba-reject-multi"/>ExecuteFetchAsDBA rejects multi-statement SQL | ||
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| `vtctldclient ExecuteFetchAsDBA` (and similarly the `vtctl` and `vtctlclient` commands) now reject multi-statement SQL with error. | ||
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| For example, `vtctldclient ExecuteFetchAsDBA my-tablet "stop replica; change replication source to auto_position=1; start replica` will return an error, without attempting to execute any of these queries. | ||
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| Previously, `ExecuteFetchAsDBA` silently accepted multi statement SQL. It would (attempt to) execute all of them, but: | ||
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| - It would only indicate error for the first statement. Errors on 2nd, 3rd, ... statements were silently ignored. | ||
| - It would not consume the result sets of the 2nd, 3rd, ... statements. It would then return the used connection to the pool in a dirty state. Any further query that happens to take that connection out of the pool could get unexpected results. | ||
| - As another side effect, multi-statement schema changes would cause schema to be reloaded with only the first change, leaving the cached schema inconsistent with the underlying database. | ||
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| `ExecuteFetchAsDBA` does allow a specific use case of multi-statement SQL, which is where all statements are in the form of `CREATE TABLE` or `CREATE VIEW`. This is to support a common pattern of schema initialization, formalized in `ApplySchema --batch-size` which uses `ExecuteFetchAsDBA` under the hood. | ||
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| ------------ | ||
| The entire changelog for this release can be found [here](https://github.com/vitessio/vitess/blob/main/changelog/18.0/18.0.3/changelog.md). | ||
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| The release includes 47 merged Pull Requests. | ||
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| Thanks to all our contributors: @app/github-actions, @app/vitess-bot, @frouioui, @harshit-gangal, @rohit-nayak-ps, @shlomi-noach, @systay, @wangweicugw | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| ## Summary | ||
|
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| ### Table of Contents | ||
|
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||
| - **[Major Changes](#major-changes)** | ||
| - **[Breaking Changes](#breaking-changes)** | ||
| - [ExecuteFetchAsDBA rejects multi-statement SQL](#execute-fetch-as-dba-reject-multi) | ||
|
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| ## <a id="major-changes"/>Major Changes | ||
|
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| ### <a id="breaking-changes"/>Breaking Changes | ||
|
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| #### <a id="execute-fetch-as-dba-reject-multi"/>ExecuteFetchAsDBA rejects multi-statement SQL | ||
|
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| `vtctldclient ExecuteFetchAsDBA` (and similarly the `vtctl` and `vtctlclient` commands) now reject multi-statement SQL with error. | ||
|
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| For example, `vtctldclient ExecuteFetchAsDBA my-tablet "stop replica; change replication source to auto_position=1; start replica` will return an error, without attempting to execute any of these queries. | ||
|
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| Previously, `ExecuteFetchAsDBA` silently accepted multi statement SQL. It would (attempt to) execute all of them, but: | ||
|
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| - It would only indicate error for the first statement. Errors on 2nd, 3rd, ... statements were silently ignored. | ||
| - It would not consume the result sets of the 2nd, 3rd, ... statements. It would then return the used connection to the pool in a dirty state. Any further query that happens to take that connection out of the pool could get unexpected results. | ||
| - As another side effect, multi-statement schema changes would cause schema to be reloaded with only the first change, leaving the cached schema inconsistent with the underlying database. | ||
|
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| `ExecuteFetchAsDBA` does allow a specific use case of multi-statement SQL, which is where all statements are in the form of `CREATE TABLE` or `CREATE VIEW`. This is to support a common pattern of schema initialization, formalized in `ApplySchema --batch-size` which uses `ExecuteFetchAsDBA` under the hood. |
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