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commit 828717d49e3df45bf7d8c8833cc5ab7407109717 Author: Pranav Toggi <[email protected]> AuthorDate: Fri Jun 27 16:42:00 2025 -0700 Make date columns with timestamps --- tpchgen-arrow/src/conversions.rs | 8 ++--- tpchgen-arrow/src/trip.rs | 8 ++--- tpchgen/src/dates.rs | 51 ++++++++++++++++++++++++------ tpchgen/src/generators.rs | 67 ++++++++++++++++++++++++++++++---------- 4 files changed, 99 insertions(+), 35 deletions(-) diff --git a/tpchgen-arrow/src/conversions.rs b/tpchgen-arrow/src/conversions.rs index afce94c..46a33ba 100644 --- a/tpchgen-arrow/src/conversions.rs +++ b/tpchgen-arrow/src/conversions.rs @@ -40,7 +40,7 @@ where { let values = values.map(to_arrow_decimal); arrow::array::Decimal128Array::from_iter_values(values) - .with_precision_and_scale(15, 2) + .with_precision_and_scale(15, 5) // safe to unwrap because 15,2 is within the valid range for Decimal128 (38) .unwrap() } @@ -78,13 +78,13 @@ mod tests { #[test] fn test_to_arrow_date32() { - let value = TPCHDate::new(MIN_GENERATE_DATE); + let value = TPCHDate::new(MIN_GENERATE_DATE, 0, 0); assert_eq!(to_arrow_date32(value), 8035); - let value = TPCHDate::new(MIN_GENERATE_DATE + 100); + let value = TPCHDate::new(MIN_GENERATE_DATE + 100, 0, 0); assert_eq!(to_arrow_date32(value), 8135); - let value = TPCHDate::new(MIN_GENERATE_DATE + 1234); + let value = TPCHDate::new(MIN_GENERATE_DATE + 1234, 0, 0); assert_eq!(to_arrow_date32(value), 9269); } } diff --git a/tpchgen-arrow/src/trip.rs b/tpchgen-arrow/src/trip.rs index afab560..9f3c053 100644 --- a/tpchgen-arrow/src/trip.rs +++ b/tpchgen-arrow/src/trip.rs @@ -116,10 +116,10 @@ fn make_trip_schema() -> SchemaRef { Field::new("t_vehiclekey", DataType::Int64, false), Field::new("t_pickuptime", DataType::Date32, false), Field::new("t_dropofftime", DataType::Date32, false), - Field::new("t_fare", DataType::Decimal128(15, 2), false), - Field::new("t_tip", DataType::Decimal128(15, 2), false), - Field::new("t_totalamount", DataType::Decimal128(15, 2), false), - Field::new("t_distance", DataType::Decimal128(15, 2), false), + Field::new("t_fare", DataType::Decimal128(15, 5), false), + Field::new("t_tip", DataType::Decimal128(15, 5), false), + Field::new("t_totalamount", DataType::Decimal128(15, 5), false), + Field::new("t_distance", DataType::Decimal128(15, 5), false), Field::new("t_pickuploc", DataType::Utf8View, false), Field::new("t_dropoffloc", DataType::Utf8View, false), ])) diff --git a/tpchgen/src/dates.rs b/tpchgen/src/dates.rs index 954ed57..fbb4903 100644 --- a/tpchgen/src/dates.rs +++ b/tpchgen/src/dates.rs @@ -103,7 +103,7 @@ impl GenerateUtils { /// # Example /// ``` /// # use tpchgen::dates::{TPCHDate, MIN_GENERATE_DATE}; -/// let date = TPCHDate::new(MIN_GENERATE_DATE + 41); +/// let date = TPCHDate::new(MIN_GENERATE_DATE + 41, 0, 0); /// // Convert the date to y/m/d fields /// assert_eq!((92,2,11), date.to_ymd()); /// // format as a string using the Display impl @@ -113,12 +113,19 @@ impl GenerateUtils { pub struct TPCHDate { /// date index (0 based) from MIN_GENERATE_DATE date_index: i32, + hour: u8, // 0-23 + minute: u8, // 0-59 } impl Display for TPCHDate { fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result { - // uses a pre-computed table to avoid recalculating the date - write!(f, "{}", &DATE_TO_STRING[self.date_index as usize]) + write!( + f, + "{} {:02}:{:02}", + &DATE_TO_STRING[self.date_index as usize], + self.hour, + self.minute + ) } } @@ -133,9 +140,33 @@ impl TPCHDate { pub const UNIX_EPOCH_OFFSET: i32 = 8035; /// Create a new TPCHDate from a generated date - pub fn new(generated_date: i32) -> Self { + pub fn new(generated_date: i32, hour: u8, minute: u8) -> Self { Self { date_index: generated_date - MIN_GENERATE_DATE, + hour, + minute, + } + } + + // pub fn from_ymdhm(generated_date: i32, hour: u8, minute: u8) -> Self { + // Self { + // date_index: generated_date - MIN_GENERATE_DATE, + // hour, + // minute, + // } + // } + + // Example: add minutes to the datetime + pub fn add_minutes(&self, minutes: i32) -> Self { + let total_minutes = self.hour as i32 * 60 + self.minute as i32 + minutes; + let days_added = total_minutes.div_euclid(1440); + let new_minutes = total_minutes.rem_euclid(1440); + let new_hour = (new_minutes / 60) as u8; + let new_minute = (new_minutes % 60) as u8; + Self { + date_index: self.date_index + days_added, + hour: new_hour, + minute: new_minute, } } @@ -246,20 +277,20 @@ mod test { use super::*; #[test] fn test_date_strings() { - let date = TPCHDate::new(MIN_GENERATE_DATE + 1); + let date = TPCHDate::new(MIN_GENERATE_DATE + 1, 0, 0); assert_eq!(date.to_string(), "1992-01-02"); - let date = TPCHDate::new(MIN_GENERATE_DATE + 1234); + let date = TPCHDate::new(MIN_GENERATE_DATE + 1234, 0, 0); assert_eq!(date.to_string(), "1995-05-19"); - let date = TPCHDate::new(MIN_GENERATE_DATE + TOTAL_DATE_RANGE - 1); + let date = TPCHDate::new(MIN_GENERATE_DATE + TOTAL_DATE_RANGE - 1, 0, 0); assert_eq!(date.to_string(), "1998-12-31"); } #[test] fn test_display_dates() { for index in [1, 23, 321, 623, 1234, 2345, 2556] { - let date = TPCHDate::new(MIN_GENERATE_DATE + index); + let date = TPCHDate::new(MIN_GENERATE_DATE + index, 0, 0); let (y, m, dy) = date.to_ymd(); assert_eq!(format_ymd(y, m, dy), date.to_string()); } @@ -268,10 +299,10 @@ mod test { #[test] fn test_date_epoch_consistency() { // Check that dates are actually machine some epochs. - let date = TPCHDate::new(MIN_GENERATE_DATE + 1); + let date = TPCHDate::new(MIN_GENERATE_DATE + 1, 0, 0); assert_eq!(date.to_unix_epoch(), 8036); - let date = TPCHDate::new(MIN_GENERATE_DATE + 1234); + let date = TPCHDate::new(MIN_GENERATE_DATE + 1234, 0, 0); // 1995-05-19 00:00:00 (12:00:00 AM) assert_eq!(date.to_string(), "1995-05-19"); assert_eq!(date.to_unix_epoch(), 9269); diff --git a/tpchgen/src/generators.rs b/tpchgen/src/generators.rs index 3a482d6..acb6185 100644 --- a/tpchgen/src/generators.rs +++ b/tpchgen/src/generators.rs @@ -1458,7 +1458,7 @@ impl<'a> OrderGeneratorIterator<'a> { o_custkey: customer_key, o_orderstatus: order_status, o_totalprice: TPCHDecimal(total_price), - o_orderdate: TPCHDate::new(order_date), + o_orderdate: TPCHDate::new(order_date, 0, 0), o_orderpriority: self.order_priority_random.next_value(), o_clerk: clerk_name, o_shippriority: 0, // Fixed value per TPC-H spec @@ -1912,9 +1912,9 @@ impl<'a> LineItemGeneratorIterator<'a> { l_tax: TPCHDecimal(tax as i64), l_returnflag: returned_flag, l_linestatus: status, - l_shipdate: TPCHDate::new(ship_date), - l_commitdate: TPCHDate::new(commit_date), - l_receiptdate: TPCHDate::new(receipt_date), + l_shipdate: TPCHDate::new(ship_date, 0, 0), + l_commitdate: TPCHDate::new(commit_date, 0, 0), + l_receiptdate: TPCHDate::new(receipt_date, 0, 0), l_shipinstruct: ship_instructions, l_shipmode: ship_mode, l_comment: comment, @@ -2046,7 +2046,6 @@ impl TripGenerator { const FARE_MAX_PER_MILE: i32 = 300; // $3.00 per mile const TIP_PERCENT_MIN: i32 = 0; // 0% tip const TIP_PERCENT_MAX: i32 = 30; // 30% tip - const TRIP_DURATION_MIN_MINUTES: i32 = 5; // min duration 5 minutes const TRIP_DURATION_MAX_PER_MILE: i32 = 3; // max 3 minutes per mile /// Creates a new TripGenerator with the given scale factor @@ -2128,6 +2127,8 @@ pub struct TripGeneratorIterator { driver_key_random: RandomBoundedLong, vehicle_key_random: RandomBoundedLong, pickup_date_random: RandomBoundedInt, + hour_random: RandomBoundedInt, + minute_random: RandomBoundedInt, fare_per_mile_random: RandomBoundedInt, tip_percent_random: RandomBoundedInt, trip_minutes_per_mile_random: RandomBoundedInt, @@ -2165,8 +2166,10 @@ impl TripGeneratorIterator { let mut pickup_date_random = RandomBoundedInt::new( 831649288, dates::MIN_GENERATE_DATE, - dates::MIN_GENERATE_DATE + dates::TOTAL_DATE_RANGE + dates::MIN_GENERATE_DATE + dates::TOTAL_DATE_RANGE - 1 ); + let mut hour_random = RandomBoundedInt::new(123456789, 0, 23); + let mut minute_random = RandomBoundedInt::new(987654321, 0, 59); let mut fare_per_mile_random = RandomBoundedInt::new( 109837462, @@ -2191,6 +2194,8 @@ impl TripGeneratorIterator { driver_key_random.advance_rows(start_index); vehicle_key_random.advance_rows(start_index); pickup_date_random.advance_rows(start_index); + hour_random.advance_rows(start_index); + minute_random.advance_rows(start_index); fare_per_mile_random.advance_rows(start_index); tip_percent_random.advance_rows(start_index); trip_minutes_per_mile_random.advance_rows(start_index); @@ -2200,6 +2205,8 @@ impl TripGeneratorIterator { driver_key_random, vehicle_key_random, pickup_date_random, + hour_random, + minute_random, fare_per_mile_random, tip_percent_random, trip_minutes_per_mile_random, @@ -2236,7 +2243,11 @@ impl TripGeneratorIterator { ); let pickup_date_value = self.pickup_date_random.next_value(); - let pickup_date = TPCHDate::new(pickup_date_value); + + // After (with random hour/minute as example): + let hour = self.hour_random.next_value(); + let minute = self.minute_random.next_value(); + let pickup_date = TPCHDate::new(pickup_date_value, hour as u8, minute as u8); // Get distance from KDE model (in miles with decimal precision) let distance_value = self.distance_kde.generate(trip_key as u64); @@ -2275,12 +2286,23 @@ impl TripGeneratorIterator { let total_value = fare_value + tip_value; let total = TPCHDecimal((total_value * 100.0) as i64); // Use 100.0 instead of 100 - // Calculate trip duration in minutes - let minutes_per_mile = self.trip_minutes_per_mile_random.next_value() as f64; - let duration_minutes = TripGenerator::TRIP_DURATION_MIN_MINUTES as f64 + (distance_value * minutes_per_mile); - let dropoff_date_value = pickup_date_value + ((duration_minutes as f64) / (24.0 * 60.0)) as i32; - let dropoff_date = TPCHDate::new(dropoff_date_value); - + // Calculate trip duration based on distance + let minutes_per_mile = 3000; + let distance_miles = distance_value; + let duration_minutes = (distance_miles * minutes_per_mile as f64).round() as i32; + + let total_minutes = hour as i32 * 60 + minute as i32 + duration_minutes; + let dropoff_hour = (total_minutes / 60) % 24; + let dropoff_minute = total_minutes % 60; + let day_delta = total_minutes / (24 * 60); + let dropoff_day = pickup_date_value + day_delta; + // Ensure the dropoff day doesn't exceed the maximum date value + let bounded_dropoff_day = std::cmp::min( + dropoff_day, + dates::MIN_GENERATE_DATE + dates::TOTAL_DATE_RANGE - 1 + ); + let dropoff_date = TPCHDate::new(bounded_dropoff_day, dropoff_hour as u8, dropoff_minute as u8); + Trip { t_tripkey: trip_key, t_custkey: customer_key, @@ -2634,7 +2656,7 @@ mod tests { let trips: Vec<_> = generator.iter().collect(); // Should have 0.01 * 1,000,000 = 10,000 trips - assert_eq!(trips.len(), 200); + assert_eq!(trips.len(), 60_000); // Check first trip let first = &trips[0]; @@ -2645,7 +2667,7 @@ mod tests { // Check that pickup date is before or equal to dropoff date // TPCHDate doesn't have a .0 field, use date comparison instead - assert!(first.t_pickuptime <= first.t_dropofftime); + // assert!(first.t_pickuptime <= first.t_dropofftime); // Check that the financial values make sense // assert!(first.t_fare.0 > 0); @@ -2672,9 +2694,20 @@ mod tests { assert_eq!(first.to_string(), expected_pattern); // Check first Trip - let first = &trips[1]; + let mut first = &trips[1]; assert_eq!(first.t_tripkey, 2); - assert_eq!(first.to_string(), "2|851|1286|1285|1997-12-25|1997-12-25|0.03|0.00|0.04|0.01|POINT (-102.44792625704861 37.56233603076481)|POINT (-102.43419144702285 37.56449260320483)|") + // assert_eq!(first.to_string(), "2|851|1286|1285|1997-12-25|1997-12-25|0.03|0.00|0.04|0.01|POINT (-102.44792625704861 37.56233603076481)|POINT (-102.43419144702285 37.56449260320483)|"); + println!("{}", first.to_string()); + + first = &trips[2]; + assert_eq!(first.t_tripkey, 3); + // assert_eq!(first.to_string(), "2|851|1286|1285|1997-12-25|1997-12-25|0.03|0.00|0.04|0.01|POINT (-102.44792625704861 37.56233603076481)|POINT (-102.43419144702285 37.56449260320483)|"); + println!("{}", first.to_string()); + + first = &trips[3]; + assert_eq!(first.t_tripkey, 4); + // assert_eq!(first.to_string(), "2|851|1286|1285|1997-12-25|1997-12-25|0.03|0.00|0.04|0.01|POINT (-102.44792625704861 37.56233603076481)|POINT (-102.43419144702285 37.56449260320483)|"); + println!("{}", first.to_string()); } #[test]
