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avoid converting double to string in datetime

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This commit is contained in:
meteorgan
2025-04-13 16:41:30 +08:00
parent fd8f629ee4
commit f3f7a722a7
1 changed files with 14 additions and 25 deletions
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39
core/functions/datetime.rs
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@@ -52,8 +52,7 @@ enum DateTimeOutput {
fn exec_datetime(values: &[Register], output_type: DateTimeOutput) -> OwnedValue {
if values.is_empty() {
let now = parse_naive_date_time(&OwnedValue::build_text("now")).unwrap();
let formatted_str = format_dt(now, output_type, false);
return OwnedValue::build_text(&formatted_str);
return format_dt(now, output_type, false);
}
if let Some(mut dt) = parse_naive_date_time(values[0].get_owned_value()) {
// if successful, treat subsequent entries as modifiers
@@ -84,29 +83,32 @@ fn modify_dt(dt: &mut NaiveDateTime, mods: &[Register], output_type: DateTimeOut
if is_leap_second(dt) || *dt > get_max_datetime_exclusive() {
return OwnedValue::build_text("");
}
let formatted = format_dt(*dt, output_type, subsec_requested);
OwnedValue::build_text(&formatted)
format_dt(*dt, output_type, subsec_requested)
}
fn format_dt(dt: NaiveDateTime, output_type: DateTimeOutput, subsec: bool) -> String {
fn format_dt(dt: NaiveDateTime, output_type: DateTimeOutput, subsec: bool) -> OwnedValue {
match output_type {
DateTimeOutput::Date => dt.format("%Y-%m-%d").to_string(),
DateTimeOutput::Date => OwnedValue::from_text(dt.format("%Y-%m-%d").to_string().as_str()),
DateTimeOutput::Time => {
if subsec {
let t = if subsec {
dt.format("%H:%M:%S%.3f").to_string()
} else {
dt.format("%H:%M:%S").to_string()
}
};
OwnedValue::from_text(t.as_str())
}
DateTimeOutput::DateTime => {
if subsec {
let t = if subsec {
dt.format("%Y-%m-%d %H:%M:%S%.3f").to_string()
} else {
dt.format("%Y-%m-%d %H:%M:%S").to_string()
}
};
OwnedValue::from_text(t.as_str())
}
DateTimeOutput::StrfTime(format_str) => strftime_format(&dt, &format_str),
DateTimeOutput::JuliaDay => format_julian_day(to_julian_day_exact(&dt)),
DateTimeOutput::StrfTime(format_str) => {
OwnedValue::from_text(strftime_format(&dt, &format_str).as_str())
}
DateTimeOutput::JuliaDay => OwnedValue::Float(to_julian_day_exact(&dt)),
}
}
@@ -350,19 +352,6 @@ fn to_julian_day_exact(dt: &NaiveDateTime) -> f64 {
jd_days + jd_fraction
}
// Format the Julian day to a maximum of 8 decimal places. if it's an integer,
// append `.0` to the end to stay consistent with SQLite.
fn format_julian_day(days: f64) -> String {
const DECIMAL_PRECISION: f64 = 100_000_000.0;
let t = (days * DECIMAL_PRECISION).round() / DECIMAL_PRECISION;
let mut ret = format!("{}", t);
if !ret.contains('.') {
ret += ".0";
}
ret
}
pub fn exec_unixepoch(time_value: &OwnedValue) -> Result<String> {
let dt = parse_naive_date_time(time_value);
match dt {