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Merge pull request #1357 from davidselassie/fix-null-series

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Fixes generate_series to handle NULL arguments
This commit is contained in:
gwenn 2023-07-09 06:52:51 +02:00 committed by GitHub
commit 7b0393210b
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1 changed files with 23 additions and 3 deletions
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26
src/vtab/series.rs
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@ -200,19 +200,19 @@ unsafe impl VTabCursor for SeriesTabCursor<'_> {
let mut idx_num = QueryPlanFlags::from_bits_truncate(idx_num);
let mut i = 0;
if idx_num.contains(QueryPlanFlags::START) {
self.min_value = args.get(i)?;
self.min_value = args.get::<Option<_>>(i)?.unwrap_or_default();
i += 1;
} else {
self.min_value = 0;
}
if idx_num.contains(QueryPlanFlags::STOP) {
self.max_value = args.get(i)?;
self.max_value = args.get::<Option<_>>(i)?.unwrap_or_default();
i += 1;
} else {
self.max_value = 0xffff_ffff;
}
if idx_num.contains(QueryPlanFlags::STEP) {
self.step = args.get(i)?;
self.step = args.get::<Option<_>>(i)?.unwrap_or_default();
if self.step == 0 {
self.step = 1;
} else if self.step < 0 {
@ -316,6 +316,26 @@ mod test {
let series: Vec<i32> = s.query([])?.map(|r| r.get(0)).collect()?;
assert_eq!(vec![30, 25, 20, 15, 10, 5, 0], series);
let mut s = db.prepare("SELECT * FROM generate_series(NULL)")?;
let series: Vec<i32> = s.query([])?.map(|r| r.get(0)).collect()?;
let empty = Vec::<i32>::new();
assert_eq!(empty, series);
let mut s = db.prepare("SELECT * FROM generate_series(5,NULL)")?;
let series: Vec<i32> = s.query([])?.map(|r| r.get(0)).collect()?;
assert_eq!(empty, series);
let mut s = db.prepare("SELECT * FROM generate_series(5,10,NULL)")?;
let series: Vec<i32> = s.query([])?.map(|r| r.get(0)).collect()?;
assert_eq!(empty, series);
let mut s = db.prepare("SELECT * FROM generate_series(NULL,10,2)")?;
let series: Vec<i32> = s.query([])?.map(|r| r.get(0)).collect()?;
assert_eq!(empty, series);
let mut s = db.prepare("SELECT * FROM generate_series(5,NULL,2)")?;
let series: Vec<i32> = s.query([])?.map(|r| r.get(0)).collect()?;
assert_eq!(empty, series);
let mut s = db.prepare("SELECT * FROM generate_series(NULL) ORDER BY value DESC")?;
let series: Vec<i32> = s.query([])?.map(|r| r.get(0)).collect()?;
assert_eq!(empty, series);
Ok(())
}
}