Graham McIntire
26be066f77
- NexradCache: replace :ets.tab2list() with foldl to avoid ~1.3 GB heap allocation on full cache (OOM risk) - GridCache: replace :ets.select full-table copies with foldl in ets_latest_valid_time and ets_prune_keep_latest - Weather.backfill_hrrr_batch: batch N individual UPDATEs into single VALUES-based SQL statement eliminating ~500 round-trips per batch - Add 9 missing database indexes across 6 tables for hot-path queries (contacts, contact_edits, hrrr_profiles, hrrr_native_profiles, grid_tasks, rover_mission_paths, fixed_stations, beacons)
43 lines
1.7 KiB
Elixir
43 lines
1.7 KiB
Elixir
defmodule Microwaveprop.Repo.Migrations.AddPerformanceIndexes do
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use Ecto.Migration
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def change do
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# contacts.flagged_invalid — admin flagged-contacts page filters + sorts
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create index(:contacts, [:flagged_invalid, :inserted_at, :id])
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# contact_edits.inserted_at — ORDER BY DESC on list and per-contact queries
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create index(:contact_edits, [:inserted_at])
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# contact_edits(contact_id, user_id, status) — pending-edit lookup
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create index(:contact_edits, [:contact_id, :user_id, :status])
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# hrrr_profiles.surface_refractivity IS NULL — backfill query scans for nulls
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create index(:hrrr_profiles, [:surface_refractivity],
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where: "surface_refractivity IS NULL",
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name: "hrrr_profiles_surface_refractivity_null_idx"
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)
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# hrrr_native_profiles.bulk_richardson IS NULL — derive task scans for nulls
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create index(:hrrr_native_profiles, [:bulk_richardson],
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where: "bulk_richardson IS NULL AND level_count > 2",
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name: "hrrr_native_profiles_bulk_richardson_null_idx"
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)
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# grid_tasks.claimed_at for status='running' — reclaim-stale query
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create index(:grid_tasks, [:claimed_at],
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where: "status = 'running'",
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name: "grid_tasks_running_claimed_at_idx"
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)
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# rover_mission_paths composite — worker lookup on all 4 columns
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create index(:rover_mission_paths, [:mission_id, :rover_location_id, :station_id, :band_mhz],
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name: "rover_mission_paths_lookup_idx"
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)
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# fixed_stations(user_id, position, inserted_at) — WHERE + ORDER BY
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create index(:fixed_stations, [:user_id, :position, :inserted_at])
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# beacons(user_id, inserted_at) — WHERE + ORDER BY
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create index(:beacons, [:user_id, :inserted_at])
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end
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end
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