62 lines
2.2 KiB
Elixir
62 lines
2.2 KiB
Elixir
defmodule Aprsme.Repo.Migrations.AddPerformanceIndexes do
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use Ecto.Migration
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@disable_ddl_transaction true
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@disable_migration_lock true
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def up do
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# Compound index for callsign history queries
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create_if_not_exists index(:packets, [:base_callsign, "received_at DESC"],
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name: :packets_base_callsign_received_at_idx,
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concurrently: true
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)
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# Covering index for sender queries to avoid table lookups
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execute """
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CREATE INDEX CONCURRENTLY IF NOT EXISTS packets_sender_received_covering_idx
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ON packets(sender, received_at DESC)
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INCLUDE (lat, lon, data_type, has_position)
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"""
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# Partial index for weather packets (without time constraint for immutability)
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execute """
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CREATE INDEX CONCURRENTLY IF NOT EXISTS packets_weather_recent_idx
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ON packets(received_at DESC)
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WHERE data_type IN ('weather', 'Weather', 'WX', 'wx')
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"""
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# Spatial index for location queries
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execute """
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CREATE INDEX CONCURRENTLY IF NOT EXISTS packets_location_recent_idx
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ON packets USING GIST (location)
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WHERE has_position = true
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"""
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# Index for device lookups
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create_if_not_exists index(:packets, [:device_identifier, :received_at],
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name: :packets_device_received_idx,
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concurrently: true
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)
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# Index for cleanup worker queries (ascending for old packets)
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create_if_not_exists index(:packets, [:received_at],
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name: :packets_received_at_asc_idx,
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concurrently: true
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)
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end
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def down do
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drop_if_exists index(:packets, [:base_callsign, :received_at],
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name: :packets_base_callsign_received_at_idx
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)
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execute "DROP INDEX IF EXISTS packets_sender_received_covering_idx"
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execute "DROP INDEX IF EXISTS packets_weather_recent_idx"
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execute "DROP INDEX IF EXISTS packets_location_recent_idx"
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drop_if_exists index(:packets, [:device_identifier, :received_at],
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name: :packets_device_received_idx
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)
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drop_if_exists index(:packets, [:received_at], name: :packets_received_at_asc_idx)
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end
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end
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