A datetime column's date_format (columns_config value) — the Rust DatetimeFormatType union: a Simple preset (dateStyle / timeStyle), or per-part custom fields discriminated by format: "custom".
date_format
columns_config
DatetimeFormatType
Simple
dateStyle
timeStyle
format: "custom"
A datetime column's
date_format(columns_configvalue) — the RustDatetimeFormatTypeunion: aSimplepreset (dateStyle/timeStyle), or per-part custom fields discriminated byformat: "custom".