mirror of
https://gitee.com/milvus-io/milvus.git
synced 2025-12-07 09:38:39 +08:00
81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
package reader
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import (
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"context"
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"encoding/binary"
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"fmt"
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msgPb "github.com/zilliztech/milvus-distributed/internal/proto/message"
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"math"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestIndex_BuildIndex(t *testing.T) {
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// 1. Construct node, collection, partition and segment
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ctx := context.Background()
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node := NewQueryNode(ctx, 0, 0)
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var collection = node.NewCollection(0, "collection0", "")
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var partition = collection.NewPartition("partition0")
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var segment = partition.NewSegment(0)
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// 2. Create ids and timestamps
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ids := make([]int64, 0)
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timestamps := make([]uint64, 0)
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// 3. Create records, use schema below:
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// schema_tmp->AddField("fakeVec", DataType::VECTOR_FLOAT, 16);
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// schema_tmp->AddField("age", DataType::INT32);
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const DIM = 16
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const N = 100
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var vec = [DIM]float32{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
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var rawData []byte
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for _, ele := range vec {
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buf := make([]byte, 4)
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binary.LittleEndian.PutUint32(buf, math.Float32bits(ele))
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rawData = append(rawData, buf...)
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}
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bs := make([]byte, 4)
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binary.LittleEndian.PutUint32(bs, 1)
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rawData = append(rawData, bs...)
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var records [][]byte
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for i := 0; i < N; i++ {
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ids = append(ids, int64(i))
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timestamps = append(timestamps, uint64(i))
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records = append(records, rawData)
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}
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// 4. Do PreInsert
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var offset = segment.SegmentPreInsert(N)
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assert.GreaterOrEqual(t, offset, int64(0))
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// 5. Do Insert
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var err = segment.SegmentInsert(offset, &ids, ×tamps, &records)
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assert.NoError(t, err)
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// 6. Close segment, and build index
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err = segment.CloseSegment(collection)
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assert.NoError(t, err)
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// 7. Do search
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var queryJson = "{\"field_name\":\"fakevec\",\"num_queries\":1,\"topK\":10}"
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var queryRawData = make([]float32, 0)
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for i := 0; i < 16; i++ {
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queryRawData = append(queryRawData, float32(i))
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}
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var vectorRecord = msgPb.VectorRowRecord{
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FloatData: queryRawData,
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}
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query := node.QueryJson2Info(&queryJson)
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var searchRes, searchErr = segment.SegmentSearch(query, timestamps[N/2], &vectorRecord)
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assert.NoError(t, searchErr)
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fmt.Println(searchRes)
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// 8. Destruct node, collection, and segment
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partition.DeleteSegment(segment)
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collection.DeletePartition(partition)
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node.DeleteCollection(collection)
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node.Close()
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}
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