github.com/DataDog/go-sqllexer

Releases

1. v0.2.415 Jul 2026
   Release notes

   Bug Fixes

   • Don't treat backslash as a string escape in SQL Server and Oracle (#103) SQL Server (T-SQL) and Oracle follow ANSI-SQL string semantics, where backslash is an ordinary character and a quote inside a literal is escaped by doubling it (''). The lexer previously treated \ as an escape character for all dialects, so a literal like ESCAPE '\' had its closing quote misread as escaped, causing the scan to swallow the rest of the batch up to the next quote and truncate the obfuscated query.

   Open source →
2. v0.2.36 Jul 2026
   Release notes

   • Preserve bracket-quoted T-SQL identifiers containing spaces ([#…

   Open source →
   Additional notes

   Bug Fixes

   • Preserve bracket-quoted T-SQL identifiers containing spaces (#101) Bracket-quoted identifiers whose content contains whitespace (e.g. [Column With Spaces]) are no longer de-bracketed during normalization. Stripping the brackets produces bare spaces in identifier position, which breaks query structure. Simple identifiers ([schema], [table]) and dot-joined multi-part identifiers ([schema].[table]) are unaffected and continue to be de-bracketed as before. A secondary fix suppresses the spurious space that the normalizer was inserting between a dot-suffixed token and the bracket-quoted identifier that follows it (e.g. t. [Col] → t.[Col]).

   Open source →
3. v0.2.3-0.20260702151445-d86dde980f992 Jul 2026pre-release

   Nothing published for this version

4. v0.2.25 May 2026
   Release notes

   • Obfuscate EXTRACT field keywords ([#98](https://github.com/Data…

   Open source →
   Additional notes

   Bug Fixes

   • Obfuscate EXTRACT field keywords (#98) The obfuscator now replaces the field argument of EXTRACT(field FROM source) with a placeholder when it matches a known PostgreSQL field name (epoch, year, month, dow, isodow, microseconds, timezone_hour, etc.). Previously, queries captured via pg_stat_activity kept epoch as an unquoted identifier while queries from pg_stat_statements had it normalized to $1 (and then to ?), splitting one logical query across two DBM signatures. Both code paths now converge on EXTRACT(? FROM source). Bare epoch/year/etc. outside an EXTRACT(...) call (e.g. as a column reference) and unrecognized field names are left untouched.

   • Fix handling of PostgreSQL VACUUM commands (#96) Fixes a typo and reclassifies VACUUM from a generic keyword to a command so it is correctly extracted into statement metadata.

   • Handle multiline comment after keyword (#89) The lexer now correctly tokenizes SQL keywords when they are directly followed by a multiline comment (e.g. select/**/*/**/from/**/events). Previously, the leading / of the comment could be absorbed into the preceding token, breaking keyword detection.

   Performance Improvements

   • Avoid allocation in isExtractFieldKeyword (#99) Replaces a strings.ToUpper + map lookup with an allocation-free strings.EqualFold scan over a small slice of EXTRACT field names.

   Open source →
5. v0.2.2-0.20260327163001-86709eda4cd027 Mar 2026pre-release

   Nothing published for this version

6. v0.2.119 Mar 2026
   Release notes

   Update CHANGELOG.md (#92)

   Open source →
   Additional notes

   Bug Fixes

   • Fix table name metadata extraction (#91) The normalizer now correctly extracts all table names from comma-separated table lists (e.g., SELECT * FROM t1, t2). Previously, only the first table after a table indicator keyword was collected. This also adds LATERAL as a recognized keyword so it is no longer misidentified as a table name during metadata extraction.

   Maintenance

   • Pin GitHub Actions (#90)

   Open source →
7. v0.2.013 Feb 2026
   Release notes

   • Minimum Go version bumped to 1.25 ([#87](https://github.com/Dat…

   Open source →
   Additional notes

   Breaking Changes

   • Minimum Go version bumped to 1.25 (#87) The go.mod minimum Go version has been raised to Go 1.25. CI now tests through Go 1.25.7.

   Bug Fixes

   • Fix multi-byte UTF-8 character handling (#85) The lexer now correctly advances by the full rune length when scanning unknown tokens, double-quoted identifiers, and other multi-byte UTF-8 sequences (e.g., full-width punctuation, CJK characters). Previously, multi-byte characters could be incorrectly split into separate byte-level tokens or cause misaligned scans. This includes a fix for truncated UTF-8 sequences at the end of input.

   Performance Improvements

   • Use fixed-size array for trie nodes instead of a hashmap (#84) The keyword trie's children field was changed from map[rune]*trieNode to a fixed-size [27]*trieNode array (A–Z + underscore). This replaces map lookups with direct array indexing during keyword matching, reducing allocations and improving lexer throughput.

   Enhancements

   • Rework CLI and add missing normalizer option flags (#83) The cmd/sqllexer CLI was refactored for cleaner config plumbing and now exposes all normalizer options as flags:
     • -keep-identifier-quotation
     • -dollar-quoted-func
     • -replace-positional-parameter
     • -collect-procedures
     • -uppercase-keywords
     • -remove-space-between-parentheses
     • -keep-trailing-semicolon

   Open source →
8. v0.1.135 Feb 2026
   Release notes

   • Fix multi-byte UTF-8 character handling ([#85](https://github.c…

   Open source →
9. v0.1.13-0.20260128184027-339f69a70bd628 Jan 2026pre-release

   Nothing published for this version

10. v0.1.1222 Jan 2026
    Release notes

    Clone StringBuilder and string slice fields to shrink heap memory usa…

    Open source →
11. v0.1.1122 Jan 2026
    Release notes

    Fix normalization of Oracle positional bind parameters

    Open source →
12. v0.1.1019 Nov 2025
    Release notes

    Add -replace-bind-parameter flag to cli (#79)

    Open source →
13. v0.1.10-0.20251112230609-90111c7794b312 Nov 2025pre-release

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14. v0.1.10-0.20251105172440-2f0d8dfa4ba65 Nov 2025pre-release

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15. v0.1.917 Oct 2025
    Release notes

    Bump versions in lint workflow (#73)

    Open source →
16. v0.1.9-0.20251017205352-27f447374b9c17 Oct 2025pre-release

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17. v0.1.9-0.20251003221313-852fc57b43c73 Oct 2025pre-release

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18. v0.1.84 Sept 2025

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19. v0.1.726 Aug 2025

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20. v0.1.622 Apr 2025

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21. v0.1.522 Apr 2025

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22. v0.1.5-0.20250414153623-34d85cf57d3f14 Apr 2025pre-release

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23. v0.1.411 Apr 2025

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24. v0.1.33 Mar 2025

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25. v0.1.23 Mar 2025

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26. v0.1.2-alpha.13 Mar 2025pre-release

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27. v0.1.125 Feb 2025

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28. v0.1.1-alpha.125 Feb 2025pre-release

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29. v0.1.020 Feb 2025withdrawn: Version retracted: This version had memory leaks and should not be used

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30. v0.1.0-alpha.420 Feb 2025pre-release

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31. v0.1.0-alpha.320 Feb 2025pre-release

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32. v0.1.0-alpha.219 Feb 2025pre-release

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33. v0.1.0-alpha.119 Feb 2025pre-release

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34. v0.0.22-0.20250219002315-da451071d78b19 Feb 2025pre-release

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35. v0.0.2114 Feb 2025

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36. v0.0.2010 Jan 2025

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37. v0.0.20-0.20250115152739-6b24a3fcb64d15 Jan 2025pre-release

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38. v0.0.20-0.20250110150046-1c47eb46173610 Jan 2025pre-release

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39. v0.0.198 Jan 2025

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40. v0.0.1817 Dec 2024

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41. v0.0.1712 Nov 2024

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42. v0.0.17-0.20241112115915-96160b1c2c8c12 Nov 2024pre-release

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43. v0.0.17-0.20241024141352-8c03f53cb7a224 Oct 2024pre-release

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44. v0.0.168 Oct 2024

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45. v0.0.156 Sept 2024

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46. v0.0.15-0.20240906194926-cbc90c6bc0a46 Sept 2024pre-release

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47. v0.0.1421 Aug 2024

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48. v0.0.135 Aug 2024

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49. v0.0.1215 May 2024

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50. v0.0.12-0.20240515125744-a44fe7cc47d715 May 2024pre-release

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51. v0.0.114 Mar 2024

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52. v0.0.1013 Dec 2023

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53. v0.0.10-0.20231213224500-56342fe7784e13 Dec 2023pre-release

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54. v0.0.922 Nov 2023

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55. v0.0.826 Oct 2023

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56. v0.0.8-0.20231026180240-ea63d3072d9026 Oct 2023pre-release

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57. v0.0.723 Oct 2023

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58. v0.0.7-0.20231019215807-4de1898f96e119 Oct 2023pre-release

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59. v0.0.610 Oct 2023

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60. v0.0.6-0.20231010194311-38637fa646f210 Oct 2023pre-release

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