Add comprehensive README for full dataset

README.md

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+---
+license: cc-by-sa-3.0
+task_categories:
+- text-retrieval
+language:
+- de
+tags:
+- wiktionary
+- dictionary
+- german
+- linguistics
+- morphology
+- semantics
+- normalized
+- lossless
+size_categories:
+- 1M<n<10M
+---
+
+# German Wiktionary - FULL Normalized SQLite Database
+
+This is a **complete, lossless, and fully normalized** SQLite database of German Wiktionary, capturing 100% of the structured data from the `cstr/de-wiktionary-extracted` dataset.
+
+It is designed for production-ready applications, complex linguistic analysis, and mobile apps (Flutter, React Native) that require a comprehensive local dictionary.
+
+## 🎯 Key Features
+
+- **✅ 100% Lossless**: All 30+ top-level and nested fields from the source JSONL are preserved.
+- **⚡ Fast Queries**: Fully indexed schema for sub-20ms queries.
+- **🔗 Full Semantic Web**: Includes all semantic relations (synonyms, antonyms, **hypernyms, hyponyms, meronyms, holonyms, coordinate_terms**).
+- **🗣️ Rich Content**: Includes **expressions, proverbs, and entry notes** in addition to definitions and examples.
+- **📱 Mobile-ready**: Optimized for `sqflite` (Flutter) and other local DB use cases.
+- **(and all features from the standard DB: forms, translations, sounds, etc.)**
+
+## 📊 Database Statistics
+
+- **Entries**: 0
+- **Word Senses**: 0
+- **Definitions (Glosses)**: 0
+- **Translations**: 0
+- **Word Forms (Inflections)**: 0
+- **Form Tags (Total)**: 0
+- **Pronunciations (Sounds)**: 0
+- **Usage Examples**: 0
+- **Synonyms**: 0
+- **Antonyms**: 0
+- **Hypernyms**: 0
+- **Hyponyms**: 0
+- **Proverbs**: 0
+- **Expressions**: 0
+- **Descendants**: 0
+- **Entry Notes**: 0
+- **Unique Tags**: 0
+- **Unique Topics**: 0
+- **Unique Categories**: 0
+
+## 🏗️ Database Schema (Full)
+
+This schema includes all tables from the standard `de-wiktionary-sqlite-normalized` dataset, plus the following additions:
+
+- **entries**:
+  - `title`: The Wiktionary page title.
+  - `redirect`: The page this entry redirects to (if any).
+- **entry_notes**: (New Table) Free-text notes associated with an entry (e.g., "Es gibt etliche Belege für die Steigerung...").
+- **other_pos**: (New Table) Alternative part-of-speech values for this word.
+- **entry_raw_tags**: (New Table) Unparsed, raw tags from Wiktionary.
+- **descendants**: (New Table) Words in other languages descended from this word.
+- **hypernyms**: (New Table) "Is-a" relationship (e.g., "Tier" is a hypernym of "Hund").
+- **hyponyms**: (New Table) "Type-of" relationship (e.g., "Hund" is a hyponym of "Tier").
+- **holonyms**: (New Table) "Part-of" relationship (e.g., "Hand" is a holonym of "Finger").
+- **meronyms**: (New Table) "Has-a" relationship (e.g., "Finger" is a meronym of "Hand").
+- **coordinate_terms**: (New Table) Sibling terms (e.g., "Hund" and "Katze" are coordinate terms under "Haustier").
+- **expressions**: (New Table) Idiomatic expressions using the word (linked to `sense_id`).
+- **proverbs**: (New Table) Proverbs using the word (linked to `sense_id`).
+
+*(For the standard schema, see the `cstr/de-wiktionary-sqlite-normalized` dataset card)*
+
+## 📖 Usage
+
+### Download
+```python
+from huggingface_hub import hf_hub_download
+import sqlite3
+import gzip
+import shutil
+
+# Download compressed database
+db_gz_path = hf_hub_download(
+    repo_id="cstr/de-wiktionary-sqlite-full",
+    filename="de_wiktionary_normalized_full.db",
+    repo_type="dataset"
+)
+
+# Decompress (if it's .gz)
+db_path = db_gz_path.replace('.gz', '')
+with gzip.open(db_gz_path, 'rb') as f_in:
+    with open(db_path, 'wb') as f_out:
+        shutil.copyfileobj(f_in, f_out)
+
+# Connect
+conn = sqlite3.connect(db_path)
+```
+
+### Example Query (New Tables)
+```python
+# Get all hypernyms (parent categories) for "Hund"
+cursor.execute('''
+    SELECT h.hypernym_word
+    FROM entries e
+    JOIN hypernyms h ON e.id = h.entry_id
+    WHERE e.word = ? AND e.lang = 'Deutsch'
+''', ('Hund',))
+
+print("Hypernyms of 'Hund':", [row[0] for row in cursor.fetchall()])
+```
+
+## 🔗 Source
+
+Original data: [cstr/de-wiktionary-extracted](https://huggingface.co/datasets/cstr/de-wiktionary-extracted)
+
+## 📜 License
+
+CC-BY-SA 3.0 (same as source)