v.25.6Improvement

Highlight metacharacters in SHOW

Highlight metacharacters in SHOW ... LIKE queries. This closes #80275. #80297 (Alexey Milovidov).
Highlight metacharacters in SHOW ... LIKE queries to improve pattern visibility.

Why it matters

This feature addresses the difficulty users face when interpreting metacharacters in SHOW ... LIKE queries by visually distinguishing special characters, making it easier to understand and debug pattern matching.

How to use it

Users simply write SHOW ... LIKE queries as usual; metacharacters in the pattern are automatically highlighted in the query output for clearer readability.