198ca1ad4d
In the index/store package introduce KVReader creates snapshot all read operations consistent from this snapshot must close to release introduce KVWriter only one writer active access to all operations allows for consisten read-modify-write must close to release introduce AssociativeMerge operation on batch allows efficient read-modify-write for associative operations used to consolidate updates to the term summary rows saves 1 set and 1 get op per shared instance of term in field In the index package introduced an IndexReader exposes a consisten snapshot of the index for searching At top level All searches now operate on a consisten snapshot of the index
239 lines
6.0 KiB
Go
239 lines
6.0 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package upside_down
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import (
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"os"
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"reflect"
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"testing"
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"github.com/blevesearch/bleve/document"
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"github.com/blevesearch/bleve/index"
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"github.com/blevesearch/bleve/index/store/boltdb"
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)
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func TestIndexReader(t *testing.T) {
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defer os.RemoveAll("test")
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store, err := boltdb.Open("test", "bleve")
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idx := NewUpsideDownCouch(store)
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err = idx.Open()
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if err != nil {
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t.Errorf("error opening index: %v", err)
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}
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defer idx.Close()
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var expectedCount uint64
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doc := document.NewDocument("1")
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doc.AddField(document.NewTextField("name", []uint64{}, []byte("test")))
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err = idx.Update(doc)
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if err != nil {
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t.Errorf("Error updating index: %v", err)
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}
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expectedCount++
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doc = document.NewDocument("2")
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doc.AddField(document.NewTextFieldWithAnalyzer("name", []uint64{}, []byte("test test test"), testAnalyzer))
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doc.AddField(document.NewTextFieldCustom("desc", []uint64{}, []byte("eat more rice"), document.IndexField|document.IncludeTermVectors, testAnalyzer))
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err = idx.Update(doc)
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if err != nil {
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t.Errorf("Error updating index: %v", err)
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}
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expectedCount++
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indexReader := idx.Reader()
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defer indexReader.Close()
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// first look for a term that doesnt exist
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reader, err := indexReader.TermFieldReader([]byte("nope"), "name")
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if err != nil {
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t.Errorf("Error accessing term field reader: %v", err)
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}
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count := reader.Count()
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if count != 0 {
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t.Errorf("Expected doc count to be: %d got: %d", 0, count)
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}
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reader.Close()
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reader, err = indexReader.TermFieldReader([]byte("test"), "name")
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if err != nil {
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t.Errorf("Error accessing term field reader: %v", err)
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}
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expectedCount = 2
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count = reader.Count()
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if count != expectedCount {
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t.Errorf("Exptected doc count to be: %d got: %d", expectedCount, count)
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}
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var match *index.TermFieldDoc
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var actualCount uint64
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match, err = reader.Next()
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for err == nil && match != nil {
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match, err = reader.Next()
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if err != nil {
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t.Errorf("unexpected error reading next")
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}
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actualCount++
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}
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if actualCount != count {
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t.Errorf("count was 2, but only saw %d", actualCount)
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}
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expectedMatch := &index.TermFieldDoc{
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ID: "2",
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Freq: 1,
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Norm: 0.5773502588272095,
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Vectors: []*index.TermFieldVector{
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&index.TermFieldVector{
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Field: "desc",
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Pos: 3,
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Start: 9,
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End: 13,
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},
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},
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}
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tfr, err := indexReader.TermFieldReader([]byte("rice"), "desc")
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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match, err = tfr.Next()
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if !reflect.DeepEqual(expectedMatch, match) {
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t.Errorf("got %#v, expected %#v", match, expectedMatch)
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}
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reader.Close()
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// now test usage of advance
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reader, err = indexReader.TermFieldReader([]byte("test"), "name")
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if err != nil {
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t.Errorf("Error accessing term field reader: %v", err)
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}
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match, err = reader.Advance("2")
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if match == nil {
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t.Fatalf("Expected match, got nil")
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}
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if match.ID != "2" {
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t.Errorf("Expected ID '2', got '%s'", match.ID)
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}
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match, err = reader.Advance("3")
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if match != nil {
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t.Errorf("expected nil, got %v", match)
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}
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reader.Close()
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// now test creating a reader for a field that doesn't exist
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reader, err = indexReader.TermFieldReader([]byte("water"), "doesnotexist")
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if err != nil {
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t.Errorf("Error accessing term field reader: %v", err)
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}
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count = reader.Count()
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if count != 0 {
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t.Errorf("expected count 0 for reader of non-existant field")
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}
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match, err = reader.Next()
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if match != nil {
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t.Errorf("expected nil, got %v", match)
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}
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match, err = reader.Advance("anywhere")
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if match != nil {
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t.Errorf("expected nil, got %v", match)
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}
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}
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func TestIndexDocIdReader(t *testing.T) {
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defer os.RemoveAll("test")
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store, err := boltdb.Open("test", "bleve")
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idx := NewUpsideDownCouch(store)
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err = idx.Open()
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if err != nil {
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t.Errorf("error opening index: %v", err)
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}
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defer idx.Close()
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var expectedCount uint64
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doc := document.NewDocument("1")
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doc.AddField(document.NewTextField("name", []uint64{}, []byte("test")))
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err = idx.Update(doc)
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if err != nil {
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t.Errorf("Error updating index: %v", err)
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}
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expectedCount++
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doc = document.NewDocument("2")
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doc.AddField(document.NewTextField("name", []uint64{}, []byte("test test test")))
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doc.AddField(document.NewTextFieldWithIndexingOptions("desc", []uint64{}, []byte("eat more rice"), document.IndexField|document.IncludeTermVectors))
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err = idx.Update(doc)
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if err != nil {
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t.Errorf("Error updating index: %v", err)
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}
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expectedCount++
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indexReader := idx.Reader()
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defer indexReader.Close()
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// first get all doc ids
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reader, err := indexReader.DocIDReader("", "")
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if err != nil {
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t.Errorf("Error accessing doc id reader: %v", err)
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}
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defer reader.Close()
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id, err := reader.Next()
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count := uint64(0)
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for id != "" {
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count++
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id, err = reader.Next()
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}
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if count != expectedCount {
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t.Errorf("expected %d, got %d", expectedCount, count)
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}
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// try it again, but jump to the second doc this time
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reader, err = indexReader.DocIDReader("", "")
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if err != nil {
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t.Errorf("Error accessing doc id reader: %v", err)
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}
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defer reader.Close()
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id, err = reader.Advance("2")
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if err != nil {
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t.Error(err)
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}
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if id != "2" {
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t.Errorf("expected to find id '2', got '%s'", id)
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}
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id, err = reader.Advance("3")
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if err != nil {
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t.Error(err)
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}
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if id != "" {
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t.Errorf("expected to find id '', got '%s'", id)
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}
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}
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