Flux release notes
Scott Anderson
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v2_0_ref:
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name: Flux packages and functions
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parent: Flux query language
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weight: 101
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weight: 102
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---
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Flux's functional syntax allows you to retrieve, transform, process, and output data easily.
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v2_0_ref:
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name: Flux specification
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parent: Flux query language
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weight: 102
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weight: 103
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v2.0/tags: [flux]
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---
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---
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title: Flux release notes
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description: Important changes and notes introduced in each version of Flux.
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menu:
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v2_0_ref:
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parent: Flux query language
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name: Flux release notes
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weight: 101
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---
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{{% note %}}
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_The latest release of InfluxDB v2.0 alpha includes **Flux v0.23.0**.
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Any newer versions of Flux will not be available until the next InfluxDB release._
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{{% /note %}}
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## v0.23.0 [2019-03-26]
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### Breaking changes
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- Remove unused statistics from the struct.
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### Features
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- Define comparison operators between time types.
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- Parse signed duration.
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- Added `reduce()` function and supporting go API for implementation.
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- Fix for recognizing locally scoped objects and arrays in a row function.
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### Bug fixes
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- Columns in percentile signature and more strict param checking.
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- Report the error received when parsing a bad regex literal.
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- Remove unused statistics from the struct.
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---
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## v0.22.0 [2019-03-18]
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### Features
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- Added a math package and ported all 64 bit go math library functions.
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### Bug fixes
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- Make read-like access patterns for objects thread-safe.
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## v0.21.4 [2019-03-06]
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### Bug fixes
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- Test union.flux correctly uses sort.
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- Pivot orders rowKey and columnKey by the input parameters, rather than the table column order.
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- Deterministic sorting of input tables in join.
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- Group key comparison works regardless of column ordering.
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## v0.21.3 [2019-03-05]
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### Bug fixes
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- Fix test to pass in InfluxDB.
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- Write table and result name in each row of CSV output.
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- Make time() function accept any format that parser accepts.
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- Return errors when evaluating functions.
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- Prevent a deadlock in the array expression parser.
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## v0.21.2 [2019-03-01]
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### Bug fixes
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- Add AST compiler to mappings.
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## v0.21.1 [2019-03-01]
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### Bug fixes
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- Make ASTCompiler marshalable.
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- Fix a controller test to be less flaky.
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- `from()` must send deep table copies to its downstream transformations.
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## v0.21.0 [2019-02-25]
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### Breaking changes
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- Support attaching arbitrary query metadata from the executor.
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### Features
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- Support attaching arbitrary query metadata from the executor.
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- Socket source.
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### Bug fixes
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- Add locks to make diff threadsafe.
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## v0.20.0 [2019-02-20]
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### Features
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- AST match.
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- Generate ASTs from Flux test files for external consumption.
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- Add compile subcommand that compiles Flux to spec.
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### Bug fixes
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- Change loadStorage and loadMem to be options so that they are modifiable.
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- Generate skipped tests; skip in test driver.
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## v0.19.0 [2019-02-11]
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### Breaking changes
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- Make `window()` parameters match SPEC.
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- Split FromProcedureSpec into logical and physical specs.
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### Features
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- Add `contains()` function to check for membership in lists.
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- `test` keyword.
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### Bug fixes
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- Raw query test case.
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## v0.18.0 [2019-02-07]
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### Features
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- Add strings package with functions to trim/change string case.
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- Make duration conversion public.
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- Add assertEmpty method and use it with testing.test.
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- Expose literal parsers used within the parser.
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- Add testing.diff function.
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- Execute command.
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### Bug fixes
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- Refactor the controller to remove data races.
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- Member expressions using a string literal use the incorrect end bracket.
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- Skip lambda evaluation when referencing nulls.
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- Options editor should use ast.Expression.
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- Fix decoder bug where a default table ID is given when none is required.
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- Add close to SourceIterator.
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## v0.17.0 [2019-01-22]
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### Features
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- Checks for option dependencies.
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- Add query success and error metrics.
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- Track nested blocks in the parser.
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- Update `aggregateWindow()` to include `createEmpty` as parameter to allow for null results.
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- Add query function count metrics.
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### Bug fixes
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- Multiplicative operators are above additive operators in precedence.
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- Fix panic when copying lambda.
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- Only print a package's public exports.
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- Cannot access imports of imports.
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- Check for schema collision when appending columns to a table.
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- Process test helper had bad logic to check for errors.
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- Handle rune errors correctly when decoding an illegal token.
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## v0.16.1 [2019-01-17]
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### Bug fixes
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- Copy packages for importer copy.
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##v0.16.0 [2019-01-17]
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### Features
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- Adds various v1 meta queries helper functions
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### Bug fixes
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- Fixes various UX issues.
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- Object polytype.
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- Fix edge case panic in `assertEquals`.
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- Check for equality in time columns correctly.
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- Fix bug where `assertEquals` did not check tables without a match in both streams.
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- Clear return for each REPL command.
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## v0.15.0 [2019-01-16]
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### Features
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- Add rule to remove filter true nodes.
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- Checks for variable reassignment and option declarations below package block.
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### Bug fixes
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- Move a test file into the testing/testdata folder.
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## v0.14.0 [2019-01-14]
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### Breaking changes
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- Implement and require builtin statements.
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- Fix keys to output group key.
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- Organizes builtin code into Flux packages.
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- Change flux command to be a REPL.
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### Features
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- Implement and require builtin statements.
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- Added a new utility library for generating test data.
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- `columns()` function.
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- Add fill function to set a default value for null values in a column.
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- Organizes built-in code into Flux packages.
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- Change flux command to be a REPL.
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- Refactored the table builder interfaces to support null value creation.
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- Aggregates process empty/all-null tables by creating a null row.
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- Show nulls in REPL as empty string.
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- Add ability to define built-in packages.
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- Treat omitted values with no defaults as nil in CSV.
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- Build arrow columns with null values.
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- Converting limit to use arrow arrays.
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- TableBuilder interface and ColListTableBuilder implementation support creation of nil values.
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### Bug fixes
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- Count nulls in the count aggregate.
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- Fix keys to output group key.
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- Adding test for type mismatch in group.
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- Nest extern blocks for each level in scope.
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- Memory leak in limit when slicing.
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- Prettier formatting for package.
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- Change Package.Path to be json omitempty.
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## v0.13.0 [2019-01-07]
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### Breaking changes
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- Add File and Package nodes to the AST.
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### Features
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- Embed errors into the ast from the parser.
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- Add no-points optimization for `from() |> keys()`.
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- Add File and Package nodes to the AST.
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- Add a function for checking for errors within the AST.
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### Bug fixes
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- Remove unneeded use of memory allocator.
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- Allow the memory allocator to be nil for arrow arrays.
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- Fix several bugs in copy methods add tests.
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- Fix a flaky test in the controller shutdown.
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## v0.12.0 [2019-01-02]
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### Features
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- Slice utils.
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- Parse string literal object keys.
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- Add tests for multi-line and escaped strings.
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- Arrow helper method.
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- Converting all aggregates to use arrow arrays.
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### Bug fixes
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- Embed plan.DefaultCost in input and output functions.
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- Side effect statements are now copied between related interpreter scopes.
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## v0.11.0 [2018-12-18]
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### Features
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- Add utility methods for converting a slice into an arrow array buffer.
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### Bug fixes
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- Do not panic with unbalanced parenthesis.
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- Respect positive timeout for toHTTP.
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## v0.10.0 [2018-12-17]
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### Breaking changes
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- Change "label" to "column" for state tracking functions.
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### Features
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- Plan validation.
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- Testing framework no longer checks output.
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- Integrate arrow arrays into the table builder.
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- Support packages and imports.
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### Bug fixes
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- Cancel all queries after timeout elapses.
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- `makefile` for generating the scanner after clean was incorrect.
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## v0.9.0 [2018-12-11]
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### Features
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- Option Editor.
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### Bug fixes
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- Return the source attribute in the location correctly.
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## v0.8.0 [2018-12-11]
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### Features
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- Rule to chain group operations.
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- Add package and import support to the semantic graph.
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- Add `assertEquals` function to transformations.
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- Parse import and package statements
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- Walk pattern for AST.
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- AST formatting.
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- Switch over to the new parser.
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### Bug fixes
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- Make controller return planner failures.
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- Collision between external and fresh type vars.
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- fmt for import and package.
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- Add import/package nodes to ast.Walk.
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- Improve panic message when the wrong column type is used.
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- Check nil results when computing stats.
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- Suppress group push down for \_time and \_value.
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- Terminal output functions must produce results.
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- Fix race in interpreter.doCall.
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- Fix ast.Walk for Assignemnt rename.
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- Improve error message for missing object properties.
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- Add unary logical expression to the parser.
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- Variable declarator node needs to duplicate the location information.
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## v0.7.4 (2018-12-04)
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### Bug Fixes
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- Add missing comparison operators.
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## v0.7.3 (2018-12-04)
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### Bug Fixes
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- Fix the ident statement to use expression suffix.
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