Graham McIntire
1e7817646b
- Optimized list concatenation in PacketConsumer from O(n) to O(1) by prepending events - Refactored coordinate rounding to avoid recreating anonymous functions on each call - Added database indexes for case-insensitive searches on upper(sender) and upper(base_callsign) - Implemented RegexCache to avoid recompiling regex patterns for wildcard device matching - Added compound index on upper(sender) with received_at for efficient sorted queries These changes improve performance in hot paths: - Packet batching is now more efficient with better list operations - Coordinate processing avoids function allocation overhead - Database queries using UPPER() now use functional indexes - Device wildcard matching no longer recompiles regex on every lookup 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
31 lines
1,014 B
Elixir
31 lines
1,014 B
Elixir
defmodule Aprsme.Repo.Migrations.AddUpperSenderIndex 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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# Create functional index for case-insensitive sender searches
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execute """
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_packets_upper_sender
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ON packets (upper(sender))
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"""
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# Also add index for base_callsign which is frequently searched
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execute """
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_packets_upper_base_callsign
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ON packets (upper(base_callsign))
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"""
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# Add compound index for sender with received_at for efficient sorting
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execute """
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CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_packets_upper_sender_received_at
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ON packets (upper(sender), received_at DESC)
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"""
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end
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def down do
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execute "DROP INDEX IF EXISTS idx_packets_upper_sender"
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execute "DROP INDEX IF EXISTS idx_packets_upper_base_callsign"
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execute "DROP INDEX IF EXISTS idx_packets_upper_sender_received_at"
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end
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end
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