10 lines
489 B
Ruby
10 lines
489 B
Ruby
class AddUniqueNameIndexes < ActiveRecord::Migration[4.2]
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tag :postdeploy
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def change
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add_index :switchman_shards, [:database_server_id, :name], unique: true
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add_index :switchman_shards, :database_server_id, unique: true, where: "name IS NULL", name: 'index_switchman_shards_unique_primary_shard'
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add_index :switchman_shards, "(true)", unique: true, where: "database_server_id IS NULL AND name IS NULL", name: 'index_switchman_shards_unique_primary_db_and_shard'
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end
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end
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