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When adding new primary keys, drop the old indexes which are no longer

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needed as they are a prefix of the new primary key.
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Tom Hughes 2008-05-04 10:35:59 +00:00
parent 9274a6010a
commit 921518274f
1 changed files with 9 additions and 0 deletions
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9
db/migrate/015_key_constraints.rb
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@ -11,6 +11,15 @@ class KeyConstraints < ActiveRecord::Migration
add_primary_key :nodes, [:id, :version]
# Remove indexes superseded by primary keys
remove_index :current_way_tags, :name => :current_way_tags_id_idx
remove_index :current_relation_tags, :name => :current_relation_tags_id_idx
remove_index :way_tags, :name => :way_tags_id_version_idx
remove_index :relation_tags, :name => :relation_tags_id_version_idx
remove_index :nodes, :name => :nodes_uid_idx
# Foreign keys (between ways, way_tags, way_nodes, etc.)
add_foreign_key :current_node_tags, [:id], :current_nodes
add_foreign_key :node_tags, [:id, :version], :nodes