build(deps): bump lexical-core from 0.7.6 to 0.8.0

[dependabot]

Bumps lexical-core from 0.7.6 to 0.8.0.

Release notes

Sourced from lexical-core's releases.

Lexical-Core Version 0.8.0 Release

This was a large release that Involved a near complete re-write of lexical for faster algorithms, a simpler internal design, and faster digit parsing implementations.

Options API

• Added the Options API, a way to customize numeric conversions at runtime. The Options API is described in depth here, and contains the following structs:
  • ParseFloatOptions
  • ParseIntegerOptions
  • WriteFloatOptions
  • WriteIntegerOptions

Format API

• Change NumberFormat to be a packed u128 struct to allow more extensive configuration and use const generics.
• Changed NumberFormat to be an internal implementation detail, and NumberFormatBuilder to be the public API for creating custom formats at compile time.

Simplified the public API

• Added parse_with_options, parse_partial_with_options.

• Added write_with_options, write_unchecked, and write_with_options_unchecked.

• Remove the write_format, write_radix, and similar functions.

• Remove the parse_format, parse_radix, and similar functions.

• Added a faster float writer and parser for power of 2 radixes.

• Added the required_exponent_notation flag to NumberFormat.

• Added the power-of-two feature, for conversion to and from strings with power-of-two bases.

• Added the compact feature, optimized for binary size rather than performance.

• Added extensive documentation on benchmarks, algorithms used, and internal implementation details.

Removal Features

• Removed the dtoa feature. This allows only 1 compact backend and 1 performance backend, for fully additive features. The new Dragonbox algorithm is faster than any existing algorithms.
• Removed the rounding feature. This was never used in practice.
• Removed the lexical-capi. Existing, high-performance C/C++ libraries exist, so it's no longer practical.

Algorithm Improvements

• Made the Eisel-Lemire algorithm the default float-parser, leading to substantial improvements in performance.
• Made Dragonbox the default float writer.
• Removed pre-computed float tables of powers-of-two, and recreated stable powers of 2 through bit manipulations.
• Improved the algorithms to write and parse 128-bit integers, using faster division and multiplication algorithms.
• Simplified the big-integer arithmetic, improving performance and simplifying maintenance for float parsing algorithms.

Other Changes

• Updated the MSRV to 1.51.0.
• Updated the benchmarks to note the significant algorithm changes.
• Added automatic formatting via Rustfmt, linting via Clippy, as well as increased documentation of safety guarantees.
• Added support for base prefixes and suffixes.
• Reduced static storage required for extended-float algorithms.
• Updated the fuzz handlers and conformance tests.
• Refactored all numeric conversions into separate crates, using workspaces.

Bug Fixes

• Fixed a bug with trailing digit separators in special values.

Changelog

Sourced from lexical-core's changelog.

[0.8.0] 2021-09-03

This is a very large release that involved a full re-write from the ground-up.

Added

• Added the Options API
  • ParseFloatOptions
  • ParseIntegerOptions
  • WriteFloatOptions
  • WriteIntegerOptions
• Added parse_with_options, parse_partial_with_options
• Added write_with_options.
• Added a faster float writer and parser for power of 2 radixes.
• Added the required_exponent_notation flag to NumberFormat.
• Added the power-of-two feature, for conversion to and from strings with power-of-two bases.
• Added the compact feature, optimized for binary size rather than performance.
• Added extensive documentation on benchmarks, algorithms used, and internal implementation details.

Changed

• Made the Eisel-Lemire algorithm the default float-parser, leading to substantial improvements in performance.
• Made Dragonbox the default float writer.
• Removed pre-computed float tables of powers-of-two, and recreated stable powers of 2 through bit manipulations.
• Refactored all numeric conversions into separate crates, using workspaces.
• Improved the algorithms to write and parse 128-bit integers, using faster division and multiplication algorithms.
• Updated the MSRV to 1.51.0.
• Updated the benchmarks to note the significant algorithm changes.
• Added automatic formatting via Rustfmt, linting via Clippy, as well as increased documentation of safety guarantees.
• Re-wrote NumberFormat to allow more extensive configuration and use const generics.
• Added support for base prefixes and suffixes.
• Reduced static storage required for extended-float algorithms.
• Fixed a bug with trailing digit separators in special values.
• Updated the fuzz handlers and conformance tests.
• Simplified the big-integer arithmetic, improving performance and simplifying maintenance for float parsing algorithms.

Removed

• Remove the write_format, write_radix, and similar functions.
• Remove the parse_format, parse_radix, and similar functions.
• Removed the dtoa feature.
• Removed the rounding feature.
• Removed the lexical-capi. Existing, high-performance C/C++ libraries exist, so it's no longer practical.

Commits

• 40680c8 Update changelog for the release.
• 1ca2d4b Update bug for documentation.
• 0374cf3 Document updates features for release.
• 8155e76 Minor bug fix for feature-gated f16 unittests.
• 593c282 Add unittests for half-precision types.
• f0d582d Add documentation and tests for fast-path only case.
• fc658c6 Closes #40.
• 4a965c0 Added initial implementation of parse-float for f16.
• 3a1f338 Initial implementation for write-float with f16 and bf16.
• 01aca29 Lint fixes.
• Additional commits viewable in compare view

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[databend-bot]

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[codecov-commenter]

Codecov Report

Merging #1717 (9c479ce) into master (c0d5e1c) will increase coverage by 0%.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #1717   +/-   ##
======================================
  Coverage      72%     72%           
======================================
  Files         574     574           
  Lines       33919   33919           
======================================
+ Hits        24603   24610    +7     
+ Misses       9316    9309    -7     

Impacted Files	Coverage Δ
store/src/meta_service/raftmeta.rs	93% <0%> (+1%)	⬆️

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[bohutang]

/LGTM

[bohutang]

/approve

[databend-bot]

Approved! Thank you for the PR

[databend-bot]

CI Passed
Reviewer Approved
Let's Merge

[bohutang]

/LGTM

[databend-bot]

Approved! Thank you for the PR @dependabot[bot]