mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-10 07:49:29 +08:00
88b373b024
issue: #34357
Go Parquet uses dictionary encoding by default, and it will fall back to
plain encoding if the dictionary size exceeds the dictionary size page
limit. Users can specify custom fallback encoding by using
`parquet.WithEncoding(ENCODING_METHOD)` in writer properties. However,
Go Parquet [fallbacks to plain
encoding](e65c1e295d/go/parquet/file/column_writer_types.gen.go.tmpl (L238)
)
rather than custom encoding method users provide. Therefore, this patch
only turns off dictionary encoding for the primary key.
With a 5 million auto ID primary key benchmark, the parquet file size
improves from 13.93 MB to 8.36 MB when dictionary encoding is turned
off, reducing primary key storage space by 40%.
Signed-off-by: shaoting-huang <shaoting.huang@zilliz.com>
777 lines
21 KiB
Go
777 lines
21 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package storage
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import (
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"bytes"
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"fmt"
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"math"
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"sync"
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"github.com/apache/arrow/go/v12/arrow"
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"github.com/apache/arrow/go/v12/arrow/array"
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"github.com/apache/arrow/go/v12/arrow/memory"
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"github.com/apache/arrow/go/v12/parquet"
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"github.com/apache/arrow/go/v12/parquet/compress"
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"github.com/apache/arrow/go/v12/parquet/pqarrow"
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"github.com/cockroachdb/errors"
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"github.com/golang/protobuf/proto"
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"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
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"github.com/milvus-io/milvus/pkg/common"
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"github.com/milvus-io/milvus/pkg/util/merr"
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"github.com/milvus-io/milvus/pkg/util/typeutil"
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)
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var _ PayloadWriterInterface = (*NativePayloadWriter)(nil)
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type PayloadWriterOptions func(*NativePayloadWriter)
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func WithNullable(nullable bool) PayloadWriterOptions {
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return func(w *NativePayloadWriter) {
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w.nullable = nullable
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}
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}
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func WithWriterProps(writerProps *parquet.WriterProperties) PayloadWriterOptions {
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return func(w *NativePayloadWriter) {
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w.writerProps = writerProps
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}
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}
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func WithDim(dim int) PayloadWriterOptions {
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return func(w *NativePayloadWriter) {
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w.dim = NewNullableInt(dim)
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}
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}
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type NativePayloadWriter struct {
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dataType schemapb.DataType
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arrowType arrow.DataType
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builder array.Builder
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finished bool
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flushedRows int
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output *bytes.Buffer
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releaseOnce sync.Once
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dim *NullableInt
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nullable bool
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writerProps *parquet.WriterProperties
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}
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func NewPayloadWriter(colType schemapb.DataType, options ...PayloadWriterOptions) (PayloadWriterInterface, error) {
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w := &NativePayloadWriter{
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dataType: colType,
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finished: false,
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flushedRows: 0,
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output: new(bytes.Buffer),
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nullable: false,
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writerProps: parquet.NewWriterProperties(
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parquet.WithCompression(compress.Codecs.Zstd),
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parquet.WithCompressionLevel(3),
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),
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dim: &NullableInt{},
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}
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for _, o := range options {
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o(w)
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}
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// writer for sparse float vector doesn't require dim
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if typeutil.IsVectorType(colType) && !typeutil.IsSparseFloatVectorType(colType) {
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if w.dim.IsNull() {
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return nil, merr.WrapErrParameterInvalidMsg("incorrect input numbers")
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}
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if w.nullable {
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return nil, merr.WrapErrParameterInvalidMsg("vector type does not support nullable")
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}
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} else {
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w.dim = NewNullableInt(1)
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}
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w.arrowType = milvusDataTypeToArrowType(colType, *w.dim.Value)
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w.builder = array.NewBuilder(memory.DefaultAllocator, w.arrowType)
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return w, nil
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}
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func (w *NativePayloadWriter) AddDataToPayload(data interface{}, validData []bool) error {
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switch w.dataType {
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case schemapb.DataType_Bool:
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val, ok := data.([]bool)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddBoolToPayload(val, validData)
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case schemapb.DataType_Int8:
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val, ok := data.([]int8)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddInt8ToPayload(val, validData)
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case schemapb.DataType_Int16:
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val, ok := data.([]int16)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddInt16ToPayload(val, validData)
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case schemapb.DataType_Int32:
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val, ok := data.([]int32)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddInt32ToPayload(val, validData)
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case schemapb.DataType_Int64:
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val, ok := data.([]int64)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddInt64ToPayload(val, validData)
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case schemapb.DataType_Float:
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val, ok := data.([]float32)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddFloatToPayload(val, validData)
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case schemapb.DataType_Double:
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val, ok := data.([]float64)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddDoubleToPayload(val, validData)
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case schemapb.DataType_String, schemapb.DataType_VarChar:
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val, ok := data.(string)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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isValid := true
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if len(validData) > 1 {
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return merr.WrapErrParameterInvalidMsg("wrong input length when add data to payload")
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}
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if len(validData) == 0 && w.nullable {
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return merr.WrapErrParameterInvalidMsg("need pass valid_data when nullable==true")
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}
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if len(validData) == 1 {
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if !w.nullable {
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return merr.WrapErrParameterInvalidMsg("no need pass valid_data when nullable==false")
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}
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isValid = validData[0]
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}
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return w.AddOneStringToPayload(val, isValid)
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case schemapb.DataType_Array:
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val, ok := data.(*schemapb.ScalarField)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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isValid := true
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if len(validData) > 1 {
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return merr.WrapErrParameterInvalidMsg("wrong input length when add data to payload")
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}
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if len(validData) == 0 && w.nullable {
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return merr.WrapErrParameterInvalidMsg("need pass valid_data when nullable==true")
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}
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if len(validData) == 1 {
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if !w.nullable {
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return merr.WrapErrParameterInvalidMsg("no need pass valid_data when nullable==false")
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}
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isValid = validData[0]
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}
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return w.AddOneArrayToPayload(val, isValid)
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case schemapb.DataType_JSON:
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val, ok := data.([]byte)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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isValid := true
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if len(validData) > 1 {
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return merr.WrapErrParameterInvalidMsg("wrong input length when add data to payload")
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}
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if len(validData) == 0 && w.nullable {
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return merr.WrapErrParameterInvalidMsg("need pass valid_data when nullable==true")
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}
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if len(validData) == 1 {
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if !w.nullable {
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return merr.WrapErrParameterInvalidMsg("no need pass valid_data when nullable==false")
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}
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isValid = validData[0]
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}
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return w.AddOneJSONToPayload(val, isValid)
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case schemapb.DataType_BinaryVector:
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val, ok := data.([]byte)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddBinaryVectorToPayload(val, w.dim.GetValue())
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case schemapb.DataType_FloatVector:
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val, ok := data.([]float32)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddFloatVectorToPayload(val, w.dim.GetValue())
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case schemapb.DataType_Float16Vector:
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val, ok := data.([]byte)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddFloat16VectorToPayload(val, w.dim.GetValue())
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case schemapb.DataType_BFloat16Vector:
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val, ok := data.([]byte)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddBFloat16VectorToPayload(val, w.dim.GetValue())
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case schemapb.DataType_SparseFloatVector:
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val, ok := data.(*SparseFloatVectorFieldData)
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if !ok {
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return merr.WrapErrParameterInvalidMsg("incorrect data type")
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}
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return w.AddSparseFloatVectorToPayload(val)
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default:
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return errors.New("unsupported datatype")
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}
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}
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func (w *NativePayloadWriter) AddBoolToPayload(data []bool, validData []bool) error {
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if w.finished {
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return errors.New("can't append data to finished bool payload")
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}
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if len(data) == 0 {
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return errors.New("can't add empty msgs into bool payload")
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}
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if !w.nullable && len(validData) != 0 {
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msg := fmt.Sprintf("length of validData(%d) must be 0 when not nullable", len(validData))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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if w.nullable && len(data) != len(validData) {
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msg := fmt.Sprintf("length of validData(%d) must equal to data(%d) when nullable", len(validData), len(data))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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builder, ok := w.builder.(*array.BooleanBuilder)
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if !ok {
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return errors.New("failed to cast ArrayBuilder")
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}
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builder.AppendValues(data, validData)
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return nil
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}
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func (w *NativePayloadWriter) AddByteToPayload(data []byte, validData []bool) error {
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if w.finished {
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return errors.New("can't append data to finished byte payload")
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}
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if len(data) == 0 {
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return errors.New("can't add empty msgs into byte payload")
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}
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if !w.nullable && len(validData) != 0 {
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msg := fmt.Sprintf("length of validData(%d) must be 0 when not nullable", len(validData))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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if w.nullable && len(data) != len(validData) {
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msg := fmt.Sprintf("length of validData(%d) must equal to data(%d) when nullable", len(validData), len(data))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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builder, ok := w.builder.(*array.Int8Builder)
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if !ok {
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return errors.New("failed to cast ByteBuilder")
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}
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builder.Reserve(len(data))
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for i := range data {
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builder.Append(int8(data[i]))
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if w.nullable && !validData[i] {
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builder.AppendNull()
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}
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}
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return nil
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}
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func (w *NativePayloadWriter) AddInt8ToPayload(data []int8, validData []bool) error {
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if w.finished {
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return errors.New("can't append data to finished int8 payload")
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}
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if len(data) == 0 {
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return errors.New("can't add empty msgs into int8 payload")
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}
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if !w.nullable && len(validData) != 0 {
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msg := fmt.Sprintf("length of validData(%d) must be 0 when not nullable", len(validData))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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if w.nullable && len(data) != len(validData) {
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msg := fmt.Sprintf("length of validData(%d) must equal to data(%d) when nullable", len(validData), len(data))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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builder, ok := w.builder.(*array.Int8Builder)
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if !ok {
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return errors.New("failed to cast Int8Builder")
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}
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builder.AppendValues(data, validData)
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return nil
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}
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func (w *NativePayloadWriter) AddInt16ToPayload(data []int16, validData []bool) error {
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if w.finished {
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return errors.New("can't append data to finished int16 payload")
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}
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if len(data) == 0 {
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return errors.New("can't add empty msgs into int16 payload")
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}
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if !w.nullable && len(validData) != 0 {
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msg := fmt.Sprintf("length of validData(%d) must be 0 when not nullable", len(validData))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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if w.nullable && len(data) != len(validData) {
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msg := fmt.Sprintf("length of validData(%d) must equal to data(%d) when nullable", len(validData), len(data))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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builder, ok := w.builder.(*array.Int16Builder)
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if !ok {
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return errors.New("failed to cast Int16Builder")
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}
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builder.AppendValues(data, validData)
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return nil
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}
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func (w *NativePayloadWriter) AddInt32ToPayload(data []int32, validData []bool) error {
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if w.finished {
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return errors.New("can't append data to finished int32 payload")
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}
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if len(data) == 0 {
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return errors.New("can't add empty msgs into int32 payload")
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}
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if !w.nullable && len(validData) != 0 {
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msg := fmt.Sprintf("length of validData(%d) must be 0 when not nullable", len(validData))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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if w.nullable && len(data) != len(validData) {
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msg := fmt.Sprintf("length of validData(%d) must equal to data(%d) when nullable", len(validData), len(data))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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builder, ok := w.builder.(*array.Int32Builder)
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if !ok {
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return errors.New("failed to cast Int32Builder")
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}
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builder.AppendValues(data, validData)
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return nil
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}
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func (w *NativePayloadWriter) AddInt64ToPayload(data []int64, validData []bool) error {
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if w.finished {
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return errors.New("can't append data to finished int64 payload")
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}
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if len(data) == 0 {
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return errors.New("can't add empty msgs into int64 payload")
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}
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if !w.nullable && len(validData) != 0 {
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msg := fmt.Sprintf("length of validData(%d) must be 0 when not nullable", len(validData))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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if w.nullable && len(data) != len(validData) {
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msg := fmt.Sprintf("length of validData(%d) must equal to data(%d) when nullable", len(validData), len(data))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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builder, ok := w.builder.(*array.Int64Builder)
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if !ok {
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return errors.New("failed to cast Int64Builder")
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}
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builder.AppendValues(data, validData)
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return nil
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}
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func (w *NativePayloadWriter) AddFloatToPayload(data []float32, validData []bool) error {
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if w.finished {
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return errors.New("can't append data to finished float payload")
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}
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if len(data) == 0 {
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return errors.New("can't add empty msgs into float payload")
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}
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if !w.nullable && len(validData) != 0 {
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msg := fmt.Sprintf("length of validData(%d) must be 0 when not nullable", len(validData))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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if w.nullable && len(data) != len(validData) {
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msg := fmt.Sprintf("length of validData(%d) must equal to data(%d) when nullable", len(validData), len(data))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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builder, ok := w.builder.(*array.Float32Builder)
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if !ok {
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return errors.New("failed to cast FloatBuilder")
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}
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builder.AppendValues(data, validData)
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return nil
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}
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func (w *NativePayloadWriter) AddDoubleToPayload(data []float64, validData []bool) error {
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if w.finished {
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return errors.New("can't append data to finished double payload")
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}
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if len(data) == 0 {
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return errors.New("can't add empty msgs into double payload")
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}
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if !w.nullable && len(validData) != 0 {
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msg := fmt.Sprintf("length of validData(%d) must be 0 when not nullable", len(validData))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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if w.nullable && len(data) != len(validData) {
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msg := fmt.Sprintf("length of validData(%d) must equal to data(%d) when nullable", len(validData), len(data))
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return merr.WrapErrParameterInvalidMsg(msg)
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}
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builder, ok := w.builder.(*array.Float64Builder)
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if !ok {
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return errors.New("failed to cast DoubleBuilder")
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}
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builder.AppendValues(data, validData)
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return nil
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}
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func (w *NativePayloadWriter) AddOneStringToPayload(data string, isValid bool) error {
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if w.finished {
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return errors.New("can't append data to finished string payload")
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}
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if !w.nullable && !isValid {
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return merr.WrapErrParameterInvalidMsg("not support null when nullable is false")
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}
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builder, ok := w.builder.(*array.StringBuilder)
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if !ok {
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return errors.New("failed to cast StringBuilder")
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}
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if !isValid {
|
|
builder.AppendNull()
|
|
} else {
|
|
builder.Append(data)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) AddOneArrayToPayload(data *schemapb.ScalarField, isValid bool) error {
|
|
if w.finished {
|
|
return errors.New("can't append data to finished array payload")
|
|
}
|
|
|
|
if !w.nullable && !isValid {
|
|
return merr.WrapErrParameterInvalidMsg("not support null when nullable is false")
|
|
}
|
|
|
|
bytes, err := proto.Marshal(data)
|
|
if err != nil {
|
|
return errors.New("Marshal ListValue failed")
|
|
}
|
|
|
|
builder, ok := w.builder.(*array.BinaryBuilder)
|
|
if !ok {
|
|
return errors.New("failed to cast BinaryBuilder")
|
|
}
|
|
|
|
if !isValid {
|
|
builder.AppendNull()
|
|
} else {
|
|
builder.Append(bytes)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) AddOneJSONToPayload(data []byte, isValid bool) error {
|
|
if w.finished {
|
|
return errors.New("can't append data to finished json payload")
|
|
}
|
|
|
|
if !w.nullable && !isValid {
|
|
return merr.WrapErrParameterInvalidMsg("not support null when nullable is false")
|
|
}
|
|
|
|
builder, ok := w.builder.(*array.BinaryBuilder)
|
|
if !ok {
|
|
return errors.New("failed to cast JsonBuilder")
|
|
}
|
|
|
|
if !isValid {
|
|
builder.AppendNull()
|
|
} else {
|
|
builder.Append(data)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) AddBinaryVectorToPayload(data []byte, dim int) error {
|
|
if w.finished {
|
|
return errors.New("can't append data to finished binary vector payload")
|
|
}
|
|
|
|
if len(data) == 0 {
|
|
return errors.New("can't add empty msgs into binary vector payload")
|
|
}
|
|
|
|
builder, ok := w.builder.(*array.FixedSizeBinaryBuilder)
|
|
if !ok {
|
|
return errors.New("failed to cast BinaryVectorBuilder")
|
|
}
|
|
|
|
byteLength := dim / 8
|
|
length := len(data) / byteLength
|
|
builder.Reserve(length)
|
|
for i := 0; i < length; i++ {
|
|
builder.Append(data[i*byteLength : (i+1)*byteLength])
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) AddFloatVectorToPayload(data []float32, dim int) error {
|
|
if w.finished {
|
|
return errors.New("can't append data to finished float vector payload")
|
|
}
|
|
|
|
if len(data) == 0 {
|
|
return errors.New("can't add empty msgs into float vector payload")
|
|
}
|
|
|
|
builder, ok := w.builder.(*array.FixedSizeBinaryBuilder)
|
|
if !ok {
|
|
return errors.New("failed to cast FloatVectorBuilder")
|
|
}
|
|
|
|
byteLength := dim * 4
|
|
length := len(data) / dim
|
|
|
|
builder.Reserve(length)
|
|
bytesData := make([]byte, byteLength)
|
|
for i := 0; i < length; i++ {
|
|
vec := data[i*dim : (i+1)*dim]
|
|
for j := range vec {
|
|
bytes := math.Float32bits(vec[j])
|
|
common.Endian.PutUint32(bytesData[j*4:], bytes)
|
|
}
|
|
builder.Append(bytesData)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) AddFloat16VectorToPayload(data []byte, dim int) error {
|
|
if w.finished {
|
|
return errors.New("can't append data to finished float16 payload")
|
|
}
|
|
|
|
if len(data) == 0 {
|
|
return errors.New("can't add empty msgs into float16 payload")
|
|
}
|
|
|
|
builder, ok := w.builder.(*array.FixedSizeBinaryBuilder)
|
|
if !ok {
|
|
return errors.New("failed to cast Float16Builder")
|
|
}
|
|
|
|
byteLength := dim * 2
|
|
length := len(data) / byteLength
|
|
|
|
builder.Reserve(length)
|
|
for i := 0; i < length; i++ {
|
|
builder.Append(data[i*byteLength : (i+1)*byteLength])
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) AddBFloat16VectorToPayload(data []byte, dim int) error {
|
|
if w.finished {
|
|
return errors.New("can't append data to finished BFloat16 payload")
|
|
}
|
|
|
|
if len(data) == 0 {
|
|
return errors.New("can't add empty msgs into BFloat16 payload")
|
|
}
|
|
|
|
builder, ok := w.builder.(*array.FixedSizeBinaryBuilder)
|
|
if !ok {
|
|
return errors.New("failed to cast BFloat16Builder")
|
|
}
|
|
|
|
byteLength := dim * 2
|
|
length := len(data) / byteLength
|
|
|
|
builder.Reserve(length)
|
|
for i := 0; i < length; i++ {
|
|
builder.Append(data[i*byteLength : (i+1)*byteLength])
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) AddSparseFloatVectorToPayload(data *SparseFloatVectorFieldData) error {
|
|
if w.finished {
|
|
return errors.New("can't append data to finished sparse float vector payload")
|
|
}
|
|
builder, ok := w.builder.(*array.BinaryBuilder)
|
|
if !ok {
|
|
return errors.New("failed to cast SparseFloatVectorBuilder")
|
|
}
|
|
length := len(data.SparseFloatArray.Contents)
|
|
builder.Reserve(length)
|
|
for i := 0; i < length; i++ {
|
|
builder.Append(data.SparseFloatArray.Contents[i])
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) FinishPayloadWriter() error {
|
|
if w.finished {
|
|
return errors.New("can't reuse a finished writer")
|
|
}
|
|
|
|
w.finished = true
|
|
|
|
field := arrow.Field{
|
|
Name: "val",
|
|
Type: w.arrowType,
|
|
Nullable: w.nullable,
|
|
}
|
|
schema := arrow.NewSchema([]arrow.Field{
|
|
field,
|
|
}, nil)
|
|
|
|
w.flushedRows += w.builder.Len()
|
|
data := w.builder.NewArray()
|
|
defer data.Release()
|
|
column := arrow.NewColumnFromArr(field, data)
|
|
defer column.Release()
|
|
|
|
table := array.NewTable(schema, []arrow.Column{column}, int64(column.Len()))
|
|
defer table.Release()
|
|
|
|
return pqarrow.WriteTable(table,
|
|
w.output,
|
|
1024*1024*1024,
|
|
w.writerProps,
|
|
pqarrow.DefaultWriterProps(),
|
|
)
|
|
}
|
|
|
|
func (w *NativePayloadWriter) Reserve(size int) {
|
|
w.builder.Reserve(size)
|
|
}
|
|
|
|
func (w *NativePayloadWriter) GetPayloadBufferFromWriter() ([]byte, error) {
|
|
data := w.output.Bytes()
|
|
|
|
// The cpp version of payload writer handles the empty buffer as error
|
|
if len(data) == 0 {
|
|
return nil, errors.New("empty buffer")
|
|
}
|
|
|
|
return data, nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) GetPayloadLengthFromWriter() (int, error) {
|
|
return w.flushedRows + w.builder.Len(), nil
|
|
}
|
|
|
|
func (w *NativePayloadWriter) ReleasePayloadWriter() {
|
|
w.releaseOnce.Do(func() {
|
|
w.builder.Release()
|
|
})
|
|
}
|
|
|
|
func (w *NativePayloadWriter) Close() {
|
|
w.ReleasePayloadWriter()
|
|
}
|
|
|
|
func milvusDataTypeToArrowType(dataType schemapb.DataType, dim int) arrow.DataType {
|
|
switch dataType {
|
|
case schemapb.DataType_Bool:
|
|
return &arrow.BooleanType{}
|
|
case schemapb.DataType_Int8:
|
|
return &arrow.Int8Type{}
|
|
case schemapb.DataType_Int16:
|
|
return &arrow.Int16Type{}
|
|
case schemapb.DataType_Int32:
|
|
return &arrow.Int32Type{}
|
|
case schemapb.DataType_Int64:
|
|
return &arrow.Int64Type{}
|
|
case schemapb.DataType_Float:
|
|
return &arrow.Float32Type{}
|
|
case schemapb.DataType_Double:
|
|
return &arrow.Float64Type{}
|
|
case schemapb.DataType_VarChar, schemapb.DataType_String:
|
|
return &arrow.StringType{}
|
|
case schemapb.DataType_Array:
|
|
return &arrow.BinaryType{}
|
|
case schemapb.DataType_JSON:
|
|
return &arrow.BinaryType{}
|
|
case schemapb.DataType_FloatVector:
|
|
return &arrow.FixedSizeBinaryType{
|
|
ByteWidth: dim * 4,
|
|
}
|
|
case schemapb.DataType_BinaryVector:
|
|
return &arrow.FixedSizeBinaryType{
|
|
ByteWidth: dim / 8,
|
|
}
|
|
case schemapb.DataType_Float16Vector:
|
|
return &arrow.FixedSizeBinaryType{
|
|
ByteWidth: dim * 2,
|
|
}
|
|
case schemapb.DataType_BFloat16Vector:
|
|
return &arrow.FixedSizeBinaryType{
|
|
ByteWidth: dim * 2,
|
|
}
|
|
case schemapb.DataType_SparseFloatVector:
|
|
return &arrow.BinaryType{}
|
|
default:
|
|
panic("unsupported data type")
|
|
}
|
|
}
|