**Problem** Slack webhook processing was failing with 500 errors due to database timeouts. The query `Conversation.where(identifier: params[:event][:thread_ts]).first` was performing full table scans and hitting PostgreSQL statement timeout. **Solution** Added database index on conversations.identifier and account_id.
7 lines
262 B
Ruby
7 lines
262 B
Ruby
class AddIndexToConversationsIdentifier < ActiveRecord::Migration[7.1]
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disable_ddl_transaction!
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def change
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add_index :conversations, [:identifier, :account_id], name: 'index_conversations_on_identifier_and_account_id', algorithm: :concurrently
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end
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end
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