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feat(parser): support t, true, etc. in csv parser (risingwavelabs…
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…#17470)

Signed-off-by: Richard Chien <[email protected]>
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stdrc authored Jun 27, 2024
1 parent f75a8aa commit 86a3084
Showing 1 changed file with 71 additions and 3 deletions.
74 changes: 71 additions & 3 deletions src/connector/src/parser/csv_parser.rs
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,8 @@
// See the License for the specific language governing permissions and
// limitations under the License.

use risingwave_common::types::{Date, Decimal, Time, Timestamp, Timestamptz};
use risingwave_common::cast::str_to_bool;
use risingwave_common::types::{Date, Decimal, ScalarImpl, Time, Timestamp, Timestamptz};

use super::unified::{AccessError, AccessResult};
use super::{ByteStreamSourceParser, CsvProperties};
Expand Down Expand Up @@ -76,7 +77,15 @@ impl CsvParser {
fn parse_string(dtype: &DataType, v: String) -> AccessResult {
let v = match dtype {
// mysql use tinyint to represent boolean
DataType::Boolean => (parse!(v, i16)? != 0).into(),
DataType::Boolean => {
str_to_bool(&v)
.map(ScalarImpl::Bool)
.map_err(|_| AccessError::TypeError {
expected: "boolean".to_owned(),
got: "string".to_owned(),
value: v,
})?
}
DataType::Int16 => parse!(v, i16)?.into(),
DataType::Int32 => parse!(v, i32)?.into(),
DataType::Int64 => parse!(v, i64)?.into(),
Expand Down Expand Up @@ -168,7 +177,7 @@ impl ByteStreamSourceParser for CsvParser {
mod tests {
use risingwave_common::array::Op;
use risingwave_common::row::Row;
use risingwave_common::types::{DataType, ScalarImpl, ToOwnedDatum};
use risingwave_common::types::{DataType, ToOwnedDatum};

use super::*;
use crate::parser::SourceStreamChunkBuilder;
Expand Down Expand Up @@ -377,4 +386,63 @@ mod tests {
);
}
}

#[test]
fn test_parse_boolean() {
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "1".to_string()).unwrap(),
Some(true.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "t".to_string()).unwrap(),
Some(true.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "T".to_string()).unwrap(),
Some(true.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "true".to_string()).unwrap(),
Some(true.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "TRUE".to_string()).unwrap(),
Some(true.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "True".to_string()).unwrap(),
Some(true.into())
);

assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "0".to_string()).unwrap(),
Some(false.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "f".to_string()).unwrap(),
Some(false.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "F".to_string()).unwrap(),
Some(false.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "false".to_string()).unwrap(),
Some(false.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "FALSE".to_string()).unwrap(),
Some(false.into())
);
assert_eq!(
CsvParser::parse_string(&DataType::Boolean, "False".to_string()).unwrap(),
Some(false.into())
);

assert!(CsvParser::parse_string(&DataType::Boolean, "2".to_string()).is_err());
assert!(CsvParser::parse_string(&DataType::Boolean, "t1".to_string()).is_err());
assert!(CsvParser::parse_string(&DataType::Boolean, "f1".to_string()).is_err());
assert!(CsvParser::parse_string(&DataType::Boolean, "false1".to_string()).is_err());
assert!(CsvParser::parse_string(&DataType::Boolean, "TRUE1".to_string()).is_err());
}
}

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