v.25.5Bug Fix (user-visible misbehavior in an official stable release)

Format specifier %e in SQL function parseDateTime

Official CH changelog text
Format specifier %e in SQL function parseDateTime now recognizes single-digit days (e.g. 3), whereas it previously required space padding (e.g. 3). This makes its behavior compatible with MySQL. To retain the previous behaviour, set setting parsedatetime_e_requires_space_padding = 1. (issue #78243). #80057 (Robert Schulze).
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