Since version 0.14.0, IoTDB could store schema into a persistent slotted file.
If you want to parse schema file into a human readable way, you can use this tool to parse the specified schema file file.
The tool can sketch .pst file.
Linux/MacOS
./SchemaFileSketcher.sh -f your/path/to/schema_file.pst -o /your/path/to/sketch.txt
Windows
./SchemaFileSketcher.bat -f your/path/to/schema_file.pst -o /your/path/to/sketch.txt