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feat(data type): Support Semi-structured array, object data type
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| // Copyright 2022 Datafuse Labs. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| use std::collections::BTreeMap; | ||
| use std::sync::Arc; | ||
|
|
||
| use common_arrow::arrow::datatypes::DataType as ArrowType; | ||
| use common_exception::Result; | ||
| use serde_json::Value as JsonValue; | ||
|
|
||
| use super::data_type::DataType; | ||
| use super::data_type::ARROW_EXTENSION_NAME; | ||
| use super::type_id::TypeID; | ||
| use crate::prelude::*; | ||
|
|
||
| #[derive(Default, Clone, serde::Deserialize, serde::Serialize)] | ||
| pub struct VariantArrayType {} | ||
|
|
||
| impl VariantArrayType { | ||
| pub fn arc() -> DataTypePtr { | ||
| Arc::new(Self {}) | ||
| } | ||
| } | ||
|
|
||
| #[typetag::serde] | ||
| impl DataType for VariantArrayType { | ||
| fn data_type_id(&self) -> TypeID { | ||
| TypeID::VariantArray | ||
| } | ||
|
|
||
| #[inline] | ||
| fn as_any(&self) -> &dyn std::any::Any { | ||
| self | ||
| } | ||
|
|
||
| fn name(&self) -> &str { | ||
| "Array" | ||
| } | ||
|
|
||
| fn default_value(&self) -> DataValue { | ||
| DataValue::String("Null".as_bytes().to_vec()) | ||
| } | ||
|
|
||
| fn create_constant_column(&self, data: &DataValue, size: usize) -> Result<ColumnRef> { | ||
| let value: JsonValue = DFTryFrom::try_from(data)?; | ||
| let column = Series::from_data(vec![value]); | ||
| Ok(Arc::new(ConstColumn::new(column, size))) | ||
| } | ||
|
|
||
| fn create_column(&self, data: &[DataValue]) -> Result<ColumnRef> { | ||
| let values: Vec<JsonValue> = data | ||
| .iter() | ||
| .map(DFTryFrom::try_from) | ||
| .collect::<Result<Vec<_>>>()?; | ||
|
|
||
| Ok(Series::from_data(values)) | ||
| } | ||
|
|
||
| fn arrow_type(&self) -> ArrowType { | ||
| ArrowType::Extension( | ||
| "VariantArray".to_owned(), | ||
| Box::new(ArrowType::LargeBinary), | ||
| None, | ||
| ) | ||
| } | ||
|
|
||
| fn custom_arrow_meta(&self) -> Option<BTreeMap<String, String>> { | ||
| let mut mp = BTreeMap::new(); | ||
| mp.insert(ARROW_EXTENSION_NAME.to_string(), "VariantArray".to_string()); | ||
| Some(mp) | ||
| } | ||
|
|
||
| fn create_serializer(&self) -> Box<dyn TypeSerializer> { | ||
| Box::new(VariantSerializer {}) | ||
| } | ||
|
|
||
| fn create_deserializer(&self, capacity: usize) -> Box<dyn TypeDeserializer> { | ||
| Box::new(VariantDeserializer::with_capacity(capacity)) | ||
| } | ||
|
|
||
| fn create_mutable(&self, capacity: usize) -> Box<dyn MutableColumn> { | ||
| Box::new(MutableObjectColumn::<JsonValue>::with_capacity(capacity)) | ||
| } | ||
| } | ||
|
|
||
| impl std::fmt::Debug for VariantArrayType { | ||
| fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { | ||
| write!(f, "{}", self.name()) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| // Copyright 2022 Datafuse Labs. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| use std::collections::BTreeMap; | ||
| use std::sync::Arc; | ||
|
|
||
| use common_arrow::arrow::datatypes::DataType as ArrowType; | ||
| use common_exception::Result; | ||
| use serde_json::Value as JsonValue; | ||
|
|
||
| use super::data_type::DataType; | ||
| use super::data_type::ARROW_EXTENSION_NAME; | ||
| use super::type_id::TypeID; | ||
| use crate::prelude::*; | ||
|
|
||
| #[derive(Default, Clone, serde::Deserialize, serde::Serialize)] | ||
| pub struct VariantObjectType {} | ||
|
|
||
| impl VariantObjectType { | ||
| pub fn arc() -> DataTypePtr { | ||
| Arc::new(Self {}) | ||
| } | ||
| } | ||
|
|
||
| #[typetag::serde] | ||
| impl DataType for VariantObjectType { | ||
| fn data_type_id(&self) -> TypeID { | ||
| TypeID::VariantObject | ||
| } | ||
|
|
||
| #[inline] | ||
| fn as_any(&self) -> &dyn std::any::Any { | ||
| self | ||
| } | ||
|
|
||
| fn name(&self) -> &str { | ||
| "Object" | ||
| } | ||
|
|
||
| fn default_value(&self) -> DataValue { | ||
| DataValue::String("Null".as_bytes().to_vec()) | ||
| } | ||
|
|
||
| fn create_constant_column(&self, data: &DataValue, size: usize) -> Result<ColumnRef> { | ||
| let value: JsonValue = DFTryFrom::try_from(data)?; | ||
| let column = Series::from_data(vec![value]); | ||
| Ok(Arc::new(ConstColumn::new(column, size))) | ||
| } | ||
|
|
||
| fn create_column(&self, data: &[DataValue]) -> Result<ColumnRef> { | ||
| let values: Vec<JsonValue> = data | ||
| .iter() | ||
| .map(DFTryFrom::try_from) | ||
| .collect::<Result<Vec<_>>>()?; | ||
|
|
||
| Ok(Series::from_data(values)) | ||
| } | ||
|
|
||
| fn arrow_type(&self) -> ArrowType { | ||
| ArrowType::Extension( | ||
| "VariantObject".to_owned(), | ||
| Box::new(ArrowType::LargeBinary), | ||
| None, | ||
| ) | ||
| } | ||
|
|
||
| fn custom_arrow_meta(&self) -> Option<BTreeMap<String, String>> { | ||
| let mut mp = BTreeMap::new(); | ||
| mp.insert( | ||
| ARROW_EXTENSION_NAME.to_string(), | ||
| "VariantObject".to_string(), | ||
| ); | ||
| Some(mp) | ||
| } | ||
|
|
||
| fn create_serializer(&self) -> Box<dyn TypeSerializer> { | ||
| Box::new(VariantSerializer {}) | ||
| } | ||
|
|
||
| fn create_deserializer(&self, capacity: usize) -> Box<dyn TypeDeserializer> { | ||
| Box::new(VariantDeserializer::with_capacity(capacity)) | ||
| } | ||
|
|
||
| fn create_mutable(&self, capacity: usize) -> Box<dyn MutableColumn> { | ||
| Box::new(MutableObjectColumn::<JsonValue>::with_capacity(capacity)) | ||
| } | ||
| } | ||
|
|
||
| impl std::fmt::Debug for VariantObjectType { | ||
| fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { | ||
| write!(f, "{}", self.name()) | ||
| } | ||
| } |
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