7e36109b3c
This API (unexported) will estimate the amount of memory needed to execute
a search query over an index before the collector begins data collection.
Sample estimates for certain queries:
{Size: 10, BenchmarkUpsidedownSearchOverhead}
ESTIMATE BENCHMEM
TermQuery 4616 4796
MatchQuery 5210 5405
DisjunctionQuery (Match queries) 7700 8447
DisjunctionQuery (Term queries) 6514 6591
ConjunctionQuery (Match queries) 7524 8175
Nested disjunction query (disjunction of disjunctions) 10306 10708
…
700 lines
17 KiB
Go
700 lines
17 KiB
Go
// Copyright (c) 2017 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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 mem
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import (
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"math"
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"reflect"
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"testing"
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"github.com/blevesearch/bleve/analysis"
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"github.com/blevesearch/bleve/document"
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"github.com/blevesearch/bleve/index"
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)
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func TestEmpty(t *testing.T) {
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emptySegment := New()
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if emptySegment.Count() != 0 {
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t.Errorf("expected count 0, got %d", emptySegment.Count())
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}
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dict, err := emptySegment.Dictionary("name")
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if err != nil {
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t.Fatal(err)
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}
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if dict == nil {
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t.Fatal("got nil dict, expected non-nil")
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}
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postingsList, err := dict.PostingsList("marty", nil)
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if err != nil {
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t.Fatal(err)
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}
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if postingsList == nil {
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t.Fatal("got nil postings list, expected non-nil")
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}
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postingsItr := postingsList.Iterator()
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if postingsItr == nil {
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t.Fatal("got nil iterator, expected non-nil")
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}
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count := 0
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nextPosting, err := postingsItr.Next()
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for nextPosting != nil && err == nil {
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count++
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nextPosting, err = postingsItr.Next()
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}
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if err != nil {
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t.Fatal(err)
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}
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if count != 0 {
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t.Errorf("expected count to be 0, got %d", count)
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}
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// now try and visit a document
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err = emptySegment.VisitDocument(0, func(field string, typ byte, value []byte, pos []uint64) bool {
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t.Errorf("document visitor called, not expected")
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return true
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestSingle(t *testing.T) {
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doc := &document.Document{
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ID: "a",
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Fields: []document.Field{
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document.NewTextFieldCustom("_id", nil, []byte("a"), document.IndexField|document.StoreField, nil),
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document.NewTextFieldCustom("name", nil, []byte("wow"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("desc", nil, []byte("some thing"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("tag", []uint64{0}, []byte("cold"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("tag", []uint64{1}, []byte("dark"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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},
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CompositeFields: []*document.CompositeField{
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document.NewCompositeField("_all", true, nil, nil),
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},
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}
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// forge analyzed docs
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results := []*index.AnalysisResult{
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&index.AnalysisResult{
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Document: doc,
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Analyzed: []analysis.TokenFrequencies{
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 1,
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Position: 1,
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Term: []byte("a"),
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},
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}, nil, false),
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 3,
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Position: 1,
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Term: []byte("wow"),
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},
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}, nil, true),
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 4,
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Position: 1,
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Term: []byte("some"),
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},
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&analysis.Token{
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Start: 5,
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End: 10,
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Position: 2,
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Term: []byte("thing"),
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},
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}, nil, true),
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 4,
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Position: 1,
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Term: []byte("cold"),
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},
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}, []uint64{0}, true),
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 4,
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Position: 1,
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Term: []byte("dark"),
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},
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}, []uint64{1}, true),
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},
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Length: []int{
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1,
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1,
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2,
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1,
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1,
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},
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},
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}
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// fix up composite fields
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for _, ar := range results {
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for i, f := range ar.Document.Fields {
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for _, cf := range ar.Document.CompositeFields {
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cf.Compose(f.Name(), ar.Length[i], ar.Analyzed[i])
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}
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}
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}
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segment := NewFromAnalyzedDocs(results)
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if segment == nil {
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t.Fatalf("segment nil, not expected")
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}
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if segment.Size() <= 0 {
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t.Fatalf("segment size not updated")
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}
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expectFields := map[string]struct{}{
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"_id": struct{}{},
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"_all": struct{}{},
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"name": struct{}{},
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"desc": struct{}{},
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"tag": struct{}{},
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}
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fields := segment.Fields()
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if len(fields) != len(expectFields) {
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t.Errorf("expected %d fields, only got %d", len(expectFields), len(fields))
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}
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for _, field := range fields {
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if _, ok := expectFields[field]; !ok {
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t.Errorf("got unexpected field: %s", field)
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}
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}
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if segment.Count() != 1 {
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t.Errorf("expected count 1, got %d", segment.Count())
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}
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// check the _id field
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dict, err := segment.Dictionary("_id")
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if err != nil {
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t.Fatal(err)
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}
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if dict == nil {
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t.Fatal("got nil dict, expected non-nil")
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}
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postingsList, err := dict.PostingsList("a", nil)
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if err != nil {
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t.Fatal(err)
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}
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if postingsList == nil {
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t.Fatal("got nil postings list, expected non-nil")
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}
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postingsItr := postingsList.Iterator()
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if postingsItr == nil {
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t.Fatal("got nil iterator, expected non-nil")
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}
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count := 0
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nextPosting, err := postingsItr.Next()
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for nextPosting != nil && err == nil {
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count++
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if nextPosting.Frequency() != 1 {
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t.Errorf("expected frequency 1, got %d", nextPosting.Frequency())
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}
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if nextPosting.Number() != 0 {
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t.Errorf("expected doc number 0, got %d", nextPosting.Number())
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}
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if nextPosting.Norm() != 1.0 {
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t.Errorf("expected norm 1.0, got %f", nextPosting.Norm())
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}
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nextPosting, err = postingsItr.Next()
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}
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if err != nil {
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t.Fatal(err)
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}
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if count != 1 {
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t.Errorf("expected count to be 1, got %d", count)
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}
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// check the name field
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dict, err = segment.Dictionary("name")
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if err != nil {
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t.Fatal(err)
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}
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if dict == nil {
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t.Fatal("got nil dict, expected non-nil")
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}
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postingsList, err = dict.PostingsList("wow", nil)
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if err != nil {
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t.Fatal(err)
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}
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if postingsList == nil {
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t.Fatal("got nil postings list, expected non-nil")
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}
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postingsItr = postingsList.Iterator()
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if postingsItr == nil {
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t.Fatal("got nil iterator, expected non-nil")
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}
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count = 0
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nextPosting, err = postingsItr.Next()
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for nextPosting != nil && err == nil {
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count++
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if nextPosting.Frequency() != 1 {
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t.Errorf("expected frequency 1, got %d", nextPosting.Frequency())
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}
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if nextPosting.Number() != 0 {
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t.Errorf("expected doc number 0, got %d", nextPosting.Number())
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}
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if nextPosting.Norm() != 1.0 {
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t.Errorf("expected norm 1.0, got %f", nextPosting.Norm())
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}
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var numLocs uint64
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for _, loc := range nextPosting.Locations() {
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numLocs++
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if loc.Field() != "name" {
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t.Errorf("expected loc field to be 'name', got '%s'", loc.Field())
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}
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if loc.Start() != 0 {
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t.Errorf("expected loc start to be 0, got %d", loc.Start())
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}
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if loc.End() != 3 {
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t.Errorf("expected loc end to be 3, got %d", loc.End())
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}
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if loc.Pos() != 1 {
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t.Errorf("expected loc pos to be 1, got %d", loc.Pos())
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}
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if loc.ArrayPositions() != nil {
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t.Errorf("expect loc array pos to be nil, got %v", loc.ArrayPositions())
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}
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}
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if numLocs != nextPosting.Frequency() {
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t.Errorf("expected %d locations, got %d", nextPosting.Frequency(), numLocs)
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}
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nextPosting, err = postingsItr.Next()
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}
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if err != nil {
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t.Fatal(err)
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}
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if count != 1 {
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t.Errorf("expected count to be 1, got %d", count)
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}
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// check the _all field (composite)
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dict, err = segment.Dictionary("_all")
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if err != nil {
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t.Fatal(err)
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}
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if dict == nil {
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t.Fatal("got nil dict, expected non-nil")
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}
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postingsList, err = dict.PostingsList("wow", nil)
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if err != nil {
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t.Fatal(err)
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}
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if postingsList == nil {
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t.Fatal("got nil postings list, expected non-nil")
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}
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postingsItr = postingsList.Iterator()
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if postingsItr == nil {
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t.Fatal("got nil iterator, expected non-nil")
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}
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count = 0
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nextPosting, err = postingsItr.Next()
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for nextPosting != nil && err == nil {
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count++
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if nextPosting.Frequency() != 1 {
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t.Errorf("expected frequency 1, got %d", nextPosting.Frequency())
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}
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if nextPosting.Number() != 0 {
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t.Errorf("expected doc number 0, got %d", nextPosting.Number())
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}
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expectedNorm := float32(1.0 / math.Sqrt(float64(6)))
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if nextPosting.Norm() != float64(expectedNorm) {
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t.Errorf("expected norm %f, got %f", expectedNorm, nextPosting.Norm())
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}
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var numLocs uint64
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for _, loc := range nextPosting.Locations() {
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numLocs++
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if loc.Field() != "name" {
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t.Errorf("expected loc field to be 'name', got '%s'", loc.Field())
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}
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if loc.Start() != 0 {
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t.Errorf("expected loc start to be 0, got %d", loc.Start())
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}
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if loc.End() != 3 {
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t.Errorf("expected loc end to be 3, got %d", loc.End())
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}
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if loc.Pos() != 1 {
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t.Errorf("expected loc pos to be 1, got %d", loc.Pos())
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}
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if loc.ArrayPositions() != nil {
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t.Errorf("expect loc array pos to be nil, got %v", loc.ArrayPositions())
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}
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}
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if numLocs != nextPosting.Frequency() {
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t.Errorf("expected %d locations, got %d", nextPosting.Frequency(), numLocs)
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}
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nextPosting, err = postingsItr.Next()
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}
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if err != nil {
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t.Fatal(err)
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}
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if count != 1 {
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t.Errorf("expected count to be 1, got %d", count)
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}
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// now try a field with array positions
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dict, err = segment.Dictionary("tag")
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if err != nil {
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t.Fatal(err)
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}
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if dict == nil {
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t.Fatal("got nil dict, expected non-nil")
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}
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postingsList, err = dict.PostingsList("dark", nil)
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if err != nil {
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t.Fatal(err)
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}
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if postingsList == nil {
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t.Fatal("got nil postings list, expected non-nil")
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}
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postingsItr = postingsList.Iterator()
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if postingsItr == nil {
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t.Fatal("got nil iterator, expected non-nil")
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}
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nextPosting, err = postingsItr.Next()
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for nextPosting != nil && err == nil {
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if nextPosting.Frequency() != 1 {
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t.Errorf("expected frequency 1, got %d", nextPosting.Frequency())
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}
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if nextPosting.Number() != 0 {
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t.Errorf("expected doc number 0, got %d", nextPosting.Number())
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}
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var numLocs uint64
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for _, loc := range nextPosting.Locations() {
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numLocs++
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if loc.Field() != "tag" {
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t.Errorf("expected loc field to be 'name', got '%s'", loc.Field())
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}
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if loc.Start() != 0 {
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t.Errorf("expected loc start to be 0, got %d", loc.Start())
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}
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if loc.End() != 4 {
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t.Errorf("expected loc end to be 3, got %d", loc.End())
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}
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if loc.Pos() != 1 {
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t.Errorf("expected loc pos to be 1, got %d", loc.Pos())
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}
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expectArrayPos := []uint64{1}
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if !reflect.DeepEqual(loc.ArrayPositions(), expectArrayPos) {
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t.Errorf("expect loc array pos to be %v, got %v", expectArrayPos, loc.ArrayPositions())
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}
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}
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if numLocs != nextPosting.Frequency() {
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t.Errorf("expected %d locations, got %d", nextPosting.Frequency(), numLocs)
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}
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nextPosting, err = postingsItr.Next()
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}
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if err != nil {
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t.Fatal(err)
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}
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// now try and visit a document
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var fieldValuesSeen int
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err = segment.VisitDocument(0, func(field string, typ byte, value []byte, pos []uint64) bool {
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fieldValuesSeen++
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return true
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})
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if err != nil {
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t.Fatal(err)
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}
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if fieldValuesSeen != 5 {
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t.Errorf("expected 5 field values, got %d", fieldValuesSeen)
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}
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}
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func TestMultiple(t *testing.T) {
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doc := &document.Document{
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ID: "a",
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Fields: []document.Field{
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document.NewTextFieldCustom("_id", nil, []byte("a"), document.IndexField|document.StoreField, nil),
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document.NewTextFieldCustom("name", nil, []byte("wow"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("desc", nil, []byte("some thing"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("tag", []uint64{0}, []byte("cold"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("tag", []uint64{1}, []byte("dark"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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},
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CompositeFields: []*document.CompositeField{
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document.NewCompositeField("_all", true, nil, nil),
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},
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}
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doc2 := &document.Document{
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ID: "b",
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Fields: []document.Field{
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document.NewTextFieldCustom("_id", nil, []byte("b"), document.IndexField|document.StoreField, nil),
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document.NewTextFieldCustom("name", nil, []byte("who"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("desc", nil, []byte("some thing"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("tag", []uint64{0}, []byte("cold"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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document.NewTextFieldCustom("tag", []uint64{1}, []byte("dark"), document.IndexField|document.StoreField|document.IncludeTermVectors, nil),
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},
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CompositeFields: []*document.CompositeField{
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document.NewCompositeField("_all", true, nil, nil),
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},
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}
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// forge analyzed docs
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results := []*index.AnalysisResult{
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&index.AnalysisResult{
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Document: doc,
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Analyzed: []analysis.TokenFrequencies{
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 1,
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Position: 1,
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Term: []byte("a"),
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},
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}, nil, false),
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 3,
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Position: 1,
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Term: []byte("wow"),
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},
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}, nil, true),
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 4,
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Position: 1,
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Term: []byte("some"),
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},
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&analysis.Token{
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Start: 5,
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End: 10,
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Position: 2,
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Term: []byte("thing"),
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},
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}, nil, true),
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analysis.TokenFrequency(analysis.TokenStream{
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&analysis.Token{
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Start: 0,
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End: 4,
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Position: 1,
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Term: []byte("cold"),
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},
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}, []uint64{0}, true),
|
|
analysis.TokenFrequency(analysis.TokenStream{
|
|
&analysis.Token{
|
|
Start: 0,
|
|
End: 4,
|
|
Position: 1,
|
|
Term: []byte("dark"),
|
|
},
|
|
}, []uint64{1}, true),
|
|
},
|
|
Length: []int{
|
|
1,
|
|
1,
|
|
2,
|
|
1,
|
|
1,
|
|
},
|
|
},
|
|
&index.AnalysisResult{
|
|
Document: doc2,
|
|
Analyzed: []analysis.TokenFrequencies{
|
|
analysis.TokenFrequency(analysis.TokenStream{
|
|
&analysis.Token{
|
|
Start: 0,
|
|
End: 1,
|
|
Position: 1,
|
|
Term: []byte("b"),
|
|
},
|
|
}, nil, false),
|
|
analysis.TokenFrequency(analysis.TokenStream{
|
|
&analysis.Token{
|
|
Start: 0,
|
|
End: 3,
|
|
Position: 1,
|
|
Term: []byte("who"),
|
|
},
|
|
}, nil, true),
|
|
analysis.TokenFrequency(analysis.TokenStream{
|
|
&analysis.Token{
|
|
Start: 0,
|
|
End: 4,
|
|
Position: 1,
|
|
Term: []byte("some"),
|
|
},
|
|
&analysis.Token{
|
|
Start: 5,
|
|
End: 10,
|
|
Position: 2,
|
|
Term: []byte("thing"),
|
|
},
|
|
}, nil, true),
|
|
analysis.TokenFrequency(analysis.TokenStream{
|
|
&analysis.Token{
|
|
Start: 0,
|
|
End: 4,
|
|
Position: 1,
|
|
Term: []byte("cold"),
|
|
},
|
|
}, []uint64{0}, true),
|
|
analysis.TokenFrequency(analysis.TokenStream{
|
|
&analysis.Token{
|
|
Start: 0,
|
|
End: 4,
|
|
Position: 1,
|
|
Term: []byte("dark"),
|
|
},
|
|
}, []uint64{1}, true),
|
|
},
|
|
Length: []int{
|
|
1,
|
|
1,
|
|
2,
|
|
1,
|
|
1,
|
|
},
|
|
},
|
|
}
|
|
|
|
// fix up composite fields
|
|
for _, ar := range results {
|
|
for i, f := range ar.Document.Fields {
|
|
for _, cf := range ar.Document.CompositeFields {
|
|
cf.Compose(f.Name(), ar.Length[i], ar.Analyzed[i])
|
|
}
|
|
}
|
|
}
|
|
|
|
segment := NewFromAnalyzedDocs(results)
|
|
if segment == nil {
|
|
t.Fatalf("segment nil, not expected")
|
|
}
|
|
|
|
if segment.Count() != 2 {
|
|
t.Errorf("expected count 2, got %d", segment.Count())
|
|
}
|
|
|
|
// check the desc field
|
|
dict, err := segment.Dictionary("desc")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if dict == nil {
|
|
t.Fatal("got nil dict, expected non-nil")
|
|
}
|
|
|
|
postingsList, err := dict.PostingsList("thing", nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if postingsList == nil {
|
|
t.Fatal("got nil postings list, expected non-nil")
|
|
}
|
|
|
|
postingsItr := postingsList.Iterator()
|
|
if postingsItr == nil {
|
|
t.Fatal("got nil iterator, expected non-nil")
|
|
}
|
|
|
|
count := 0
|
|
nextPosting, err := postingsItr.Next()
|
|
for nextPosting != nil && err == nil {
|
|
count++
|
|
nextPosting, err = postingsItr.Next()
|
|
}
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if count != 2 {
|
|
t.Errorf("expected count to be 2, got %d", count)
|
|
}
|
|
|
|
// get docnum of a
|
|
exclude, err := segment.DocNumbers([]string{"a"})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// look for term 'thing' excluding doc 'a'
|
|
postingsListExcluding, err := dict.PostingsList("thing", exclude)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if postingsList == nil {
|
|
t.Fatal("got nil postings list, expected non-nil")
|
|
}
|
|
|
|
postingsListExcludingCount := postingsListExcluding.Count()
|
|
if postingsListExcludingCount != 1 {
|
|
t.Errorf("expected count from postings list to be 1, got %d", postingsListExcludingCount)
|
|
}
|
|
|
|
postingsItrExcluding := postingsListExcluding.Iterator()
|
|
if postingsItr == nil {
|
|
t.Fatal("got nil iterator, expected non-nil")
|
|
}
|
|
|
|
count = 0
|
|
nextPosting, err = postingsItrExcluding.Next()
|
|
for nextPosting != nil && err == nil {
|
|
count++
|
|
nextPosting, err = postingsItrExcluding.Next()
|
|
}
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if count != 1 {
|
|
t.Errorf("expected count to be 1, got %d", count)
|
|
}
|
|
|
|
}
|