Improve performance of AbstractSqlParser class methods

[Tigrov]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌
Fixed issues

Related PR

• Improve performance of SqlParser::getNextPlaceholder() method db-pgsql#482

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.60%. Comparing base (1f38570) to head (271e974).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1159      +/-   ##
============================================
- Coverage     98.63%   98.60%   -0.03%     
+ Complexity     1654     1645       -9     
============================================
  Files           120      120              
  Lines          4313     4292      -21     
============================================
- Hits           4254     4232      -22     
- Misses           59       60       +1     

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[samdark]

@Tigrov any benchmarks?

[Copilot]

Pull request overview

Optimizes AbstractSqlParser hot-path parsing utilities by replacing per-character loops with span functions and regex-based skipping.

Changes:

• Added LETTER_CHARS / WORD_CHARS constants and switched word/identifier parsing to strspn().
• Replaced several scanning loops with strspn() / strcspn() and preg_match() approaches.
• Added function imports for the new APIs used.

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[Tigrov]

@Tigrov any benchmarks?

Yes, tested locally. Almost 2 times faster 🚀

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.

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