Initial commit: SRDB - High-performance LSM-Tree database

- 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

examples/webui/commands/check_data.go

@@ -0,0 +1,40 @@
+package commands
+
+import (
+	"fmt"
+	"log"
+
+	"code.tczkiot.com/srdb"
+)
+
+// CheckData 检查数据库中的数据
+func CheckData(dbPath string) {
+	// 打开数据库
+	db, err := srdb.Open(dbPath)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+
+	// 列出所有表
+	tables := db.ListTables()
+	fmt.Printf("Found %d tables: %v\n", len(tables), tables)
+
+	// 检查每个表的记录数
+	for _, tableName := range tables {
+		table, err := db.GetTable(tableName)
+		if err != nil {
+			fmt.Printf("Error getting table %s: %v\n", tableName, err)
+			continue
+		}
+
+		result, err := table.Query().Rows()
+		if err != nil {
+			fmt.Printf("Error querying table %s: %v\n", tableName, err)
+			continue
+		}
+
+		count := result.Count()
+		fmt.Printf("Table '%s': %d rows\n", tableName, count)
+	}
+}