bourdon
ae87c38776
- Core engine with MemTable, SST, WAL - B+Tree indexing for SST files - Leveled compaction strategy - Multi-table database management - Schema validation and secondary indexes - Query builder with complex conditions - Web UI with HTMX for data visualization - Command-line tools for diagnostics
59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
package commands
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import (
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"fmt"
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"log"
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"code.tczkiot.com/srdb"
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)
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// DumpManifest 导出 manifest 信息
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func DumpManifest(dbPath string) {
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db, err := srdb.Open(dbPath)
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if err != nil {
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log.Fatal(err)
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}
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defer db.Close()
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table, err := db.GetTable("logs")
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if err != nil {
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log.Fatal(err)
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}
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engine := table.GetEngine()
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versionSet := engine.GetVersionSet()
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version := versionSet.GetCurrent()
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// Check for duplicates in each level
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for level := 0; level < 7; level++ {
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files := version.GetLevel(level)
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if len(files) == 0 {
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continue
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}
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// Track file numbers
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fileMap := make(map[int64][]struct {
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minKey int64
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maxKey int64
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})
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for _, f := range files {
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fileMap[f.FileNumber] = append(fileMap[f.FileNumber], struct {
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minKey int64
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maxKey int64
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}{f.MinKey, f.MaxKey})
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}
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// Report duplicates
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fmt.Printf("Level %d: %d files\n", level, len(files))
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for fileNum, entries := range fileMap {
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if len(entries) > 1 {
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fmt.Printf(" [DUPLICATE] File #%d appears %d times:\n", fileNum, len(entries))
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for i, e := range entries {
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fmt.Printf(" Entry %d: min=%d max=%d\n", i+1, e.minKey, e.maxKey)
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}
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}
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}
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}
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}
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