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⚡ Optimize synset deletion using DB CASCADE - #41

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perf/optimize-synset-deletion-1364201597557596217
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⚡ Optimize synset deletion using DB CASCADE#41
Salah-Sal wants to merge 1 commit into
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perf/optimize-synset-deletion-1364201597557596217

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@Salah-Sal

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Optimization for delete_synset to solve the N+1 deletion performance issue.

Changes:

  • Modified src/wordnet_editor/editor.py:
    • In delete_synset, replaced the loop that called _remove_sense_internal (which executed a DELETE per sense) with a loop that only records history.
    • Relied on ON DELETE CASCADE in the database schema to remove the actual sense rows, relations, definitions, and examples efficiently.
    • Removed the explicit call to _cleanup_synset_relations.

Verification:

  • Performance: Benchmark showed a reduction in deletion time from ~0.15s to ~0.05s for a synset with 1000 senses.
  • Correctness:
    • verify_cascade.py confirmed that deleting a synset removes all associated senses and relations via DB constraints.
    • verify_history.py confirmed that edit history is still recorded for all deleted items.
    • Full test suite passed.

PR created automatically by Jules for task 1364201597557596217 started by @Salah-Sal

Significantly improves performance of synset deletion by leveraging SQLite's ON DELETE CASCADE constraints instead of iterating through senses and relations in Python.

- Replaced iterative deletion loop in `delete_synset` with a bulk history record + single DELETE statement.
- Removed redundant `_cleanup_synset_relations` call as CASCADE handles it.
- Verified that history records are still correctly generated for all deleted entities.
- Measured ~3x speedup (0.15s -> 0.05s) for deleting a synset with 1000 senses.
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