[LucaCappelletti94]

MySQL accepts SELECT t.x'ff' FROM t as column x with alias ff, and similarly accepts qualified columns named b and n. The tokenizer recognizes a prefixed literal after the period, so these queries fail to parse. Qualified-name rules are documented by MySQL and MariaDB.

Dialect::supports_literal_prefix_in_qualified_name() enables identifier tokenization immediately after a period for MySQL and the generic dialect. Whitespace or comments after the period retain literal tokenization, as do unqualified prefixes. Other dialects retain their literal handling.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.53%. Comparing base (424378c) to head (ccfdce0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2688   +/-   ##
=======================================
  Coverage   81.52%   81.53%           
=======================================
  Files          42       42           
  Lines       34205    34218   +13     
  Branches    34205    34218   +13     
=======================================
+ Hits        27885    27898   +13     
  Misses       2770     2770           
  Partials     3550     3550           

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