Digital fuzzy query does not work

[zc2638]

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• Riot version (or commit ref): v0.0.0-20201013133145-f4c30acb3704
• Go version: v1.15

• Operating system and bit:
• Can you reproduce the bug at Examples:
  • Yes (provide example code)
  • No
  • Not relevant
• Provide example code:

        searcher := riot.Engine{}
	searcher.Init(types.EngineOpts{
		Using: 3,
		//GseDict: "testdata/dictionary.txt",
		IndexerOpts: &types.IndexerOpts{
			IndexType: types.DocIdsIndex,
		},
	})
	defer searcher.Close()

	text := "《复仇者联盟3：无限战争》a123是全片使用IMAX摄影机拍摄"
	text1 := "复仇:者在IMAX影院放222映时"
	text2 := "全片以上下扩展至IMAX 1.9：1的宽高比来呈现"

	text3 := "Google Is Experimenting With Virtual Reality Advertising"
	text4 := `Google accidentally pushed Bluetooth update for Home
	speaker early`
	text5 := `Google is testing another Search results layout with 
	rounded cards, new colors, and the 4 mysterious colored dots again`

	//for i := 6; i < 10000; i++ {
	//	in := strconv.Itoa(i)
	//	content := fmt.Sprintf(format, i)
	//	searcher.Index(in, types.DocData{
	//		Content: content,
	//	})
	//}

	// 将文档加入索引，docId 从0开始
	searcher.Index("0", types.DocData{Content: text})
	searcher.Index("1", types.DocData{Content: text1})
	searcher.Index("2", types.DocData{Content: text2})
	searcher.Index("3", types.DocData{Content: text3})
	searcher.Index("4", types.DocData{Content: text4})
	searcher.Index("5", types.DocData{Content: text5})

	// 等待索引刷新完毕
	searcher.Flush()

	// 搜索输出格式见 types.SearchResp 结构体
	result := searcher.Search(types.SearchReq{
		Text: "123",
	})
	log.Print(result.NumDocs)
	log.Print(result)

• Log gist:

2021/01/08 14:36:33 Dictionary file path is empty, load the default dictionary file.
2021/01/08 14:36:33 Dict files path:  [/Users/zc/go/pkg/mod/github.com/go-ego/[email protected]/data/dict/dictionary.txt]
2021/01/08 14:36:33 Load the gse dictionary: "/Users/zc/go/pkg/mod/github.com/go-ego/[email protected]/data/dict/dictionary.txt" 
2021/01/08 14:36:35 Gse dictionary loaded finished.
2021/01/08 14:36:35 Check virtualMemory...
2021/01/08 14:36:35 Total: 17179869184, Free: 4401246208, UsedPercent: 51.322794%
2021/01/08 14:36:35 0
2021/01/08 14:36:35 {{[123] false 0} []}

Description

...

[zc2638]

@vcaesar