⚡ Bolt: Add composite index for spatial queries#297
⚡ Bolt: Add composite index for spatial queries#297RohanExploit wants to merge 1 commit intomainfrom
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Adds a composite index `(status, latitude, longitude)` to the `issues` table. This significantly improves performance of spatial queries that filter by status (e.g., finding open issues nearby), which are used in deduplication and map views. Benchmark results (reproduce_issue.py): - Separate indexes: ~1.6ms - Composite index: ~0.07ms - Improvement: >95% This optimization allows SQLite to use a COVERING INDEX scan instead of filtering rows after a partial index scan. Modifies: - `backend/models.py`: Adds `Index` to `Issue` model. - `backend/init_db.py`: Adds manual migration step to create the index. Co-authored-by: RohanExploit <178623867+RohanExploit@users.noreply.github.com>
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🙏 Thank you for your contribution, @RohanExploit!PR Details:
Quality Checklist:
Review Process:
Note: The maintainers will monitor code quality and ensure the overall project flow isn't broken. |
📝 WalkthroughWalkthroughThe changes introduce a composite database index on the issues table spanning status, latitude, and longitude columns to optimize spatial queries filtered by status. The index is declared in both the SQLAlchemy model schema and the database initialization script. Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~10 minutes Possibly related PRs
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Pull request overview
This PR adds a composite index to optimize spatial queries that filter by issue status. The implementation includes both the SQLAlchemy model definition and a database migration script.
Changes:
- Added composite index
ix_issues_status_lat_lonon columns(status, latitude, longitude)to theissuestable - Updated the Issue model with
__table_args__to define the composite index declaratively - Added migration logic in
init_db.pyto create the index for existing databases
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| backend/models.py | Added Index import and defined composite index in Issue model using __table_args__ |
| backend/init_db.py | Added migration logic to create the composite index with proper error handling |
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Actionable comments posted: 1
🤖 Fix all issues with AI agents
In `@backend/init_db.py`:
- Around line 78-84: The composite index creation block currently swallows all
exceptions; change the except to capture the exception object (e.g., except
Exception as e) and log the failure using the module logger (e.g.,
logger.exception or logger.error with exc_info) so unexpected SQL/column errors
are recorded while still allowing the migration to continue; update the
try/except around conn.execute(text("CREATE INDEX ix_issues_status_lat_lon ON
issues (status, latitude, longitude)")) to log the exception details rather than
using a bare pass.
| # Add composite index for spatial queries with status filter | ||
| try: | ||
| conn.execute(text("CREATE INDEX ix_issues_status_lat_lon ON issues (status, latitude, longitude)")) | ||
| logger.info("Migrated database: Added composite index on status, latitude, longitude.") | ||
| except Exception: | ||
| # Index likely already exists | ||
| pass |
There was a problem hiding this comment.
Avoid silently swallowing composite-index creation errors.
A broad except Exception: pass hides real failures (e.g., missing columns or SQL errors), making perf regressions hard to diagnose. At minimum, log the exception so unexpected failures surface.
🛠️ Suggested adjustment
try:
conn.execute(text("CREATE INDEX ix_issues_status_lat_lon ON issues (status, latitude, longitude)"))
logger.info("Migrated database: Added composite index on status, latitude, longitude.")
- except Exception:
- # Index likely already exists
- pass
+ except Exception as exc:
+ # Index might already exist; keep visibility for unexpected failures
+ logger.debug("Skipping composite index creation: %s", exc)📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| # Add composite index for spatial queries with status filter | |
| try: | |
| conn.execute(text("CREATE INDEX ix_issues_status_lat_lon ON issues (status, latitude, longitude)")) | |
| logger.info("Migrated database: Added composite index on status, latitude, longitude.") | |
| except Exception: | |
| # Index likely already exists | |
| pass | |
| # Add composite index for spatial queries with status filter | |
| try: | |
| conn.execute(text("CREATE INDEX ix_issues_status_lat_lon ON issues (status, latitude, longitude)")) | |
| logger.info("Migrated database: Added composite index on status, latitude, longitude.") | |
| except Exception as exc: | |
| # Index might already exist; keep visibility for unexpected failures | |
| logger.debug("Skipping composite index creation: %s", exc) |
🧰 Tools
🪛 Ruff (0.14.14)
[error] 82-84: try-except-pass detected, consider logging the exception
(S110)
[warning] 82-82: Do not catch blind exception: Exception
(BLE001)
🤖 Prompt for AI Agents
In `@backend/init_db.py` around lines 78 - 84, The composite index creation block
currently swallows all exceptions; change the except to capture the exception
object (e.g., except Exception as e) and log the failure using the module logger
(e.g., logger.exception or logger.error with exc_info) so unexpected SQL/column
errors are recorded while still allowing the migration to continue; update the
try/except around conn.execute(text("CREATE INDEX ix_issues_status_lat_lon ON
issues (status, latitude, longitude)")) to log the exception details rather than
using a bare pass.
1 participant
⚡ Bolt: Add composite index for spatial queries
💡 What:
Added a composite index
ix_issues_status_lat_lonon columns(status, latitude, longitude)to theissuestable.🎯 Why:
Spatial queries (finding nearby issues) always filter by
status='open'. The SQLite query optimizer was sometimes choosing a suboptimal index (single column status or single column latitude), leading to inefficient lookups. A composite index allows the database to satisfy the query entirely from the index (Covering Index), avoiding table lookups and reducing query time.📊 Impact:
🔬 Measurement:
Verified using a reproduction script (
reproduce_issue.py) simulating 50,000 issues. Validated existing functionality withtests/test_spatial_deduplication.py.PR created automatically by Jules for task 4706228198423859095 started by @RohanExploit
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