Query Run
SELECT 0.1 REGEXP '^0\\.[0-9]$'; 6 years ago
SELECT 0.123 REGEXP '^0\\.[0-9]$'; 6 years ago
SELECT 1.123 REGEXP '^0\\.[0-9]+$'; 6 years ago
SELECT 0.123 REGEXP '^0\\.[0-9]+$'; 6 years ago