scinote-web/db/migrate/20151021085335_add_search_query_indexes.rb

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require File.expand_path('app/helpers/database_helper')
include DatabaseHelper
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class AddSearchQueryIndexes < ActiveRecord::Migration[4.2]
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def up
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add_index :projects, :team_id
add_index :user_teams, :user_id
add_index :user_teams, :team_id
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add_index :user_projects, :user_id
add_index :user_projects, :project_id
add_index :tags, :project_id
# Add GIST trigram indexes onto columns that check for
# ILIKE %pattern% during search
if db_adapter_is? "PostgreSQL" then
add_gist_index :projects, :name
add_gist_index :my_modules, :name
add_gist_index :my_module_groups, :name
add_gist_index :tags, :name
add_gist_index :steps, :name
add_gist_index :results, :name
add_gist_index :assets, :file_file_name
# There's already semi-useless BTree index on samples
remove_index :samples, :name
add_gist_index :samples, :name
end
end
def down
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remove_index :projects, :team_id
remove_index :user_teams, :user_id
remove_index :user_teams, :team_id
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remove_index :user_projects, :user_id
remove_index :user_projects, :project_id
remove_index :tags, :project_id
if db_adapter_is? "PostgreSQL" then
remove_index :projects, :name
remove_index :my_modules, :name
remove_index :my_module_groups, :name
remove_index :tags, :name
remove_index :steps, :name
remove_index :results, :name
remove_index :assets, :file_file_name
# Re-add semi-useless BTree index on samples
remove_index :samples, :name
add_index :samples, :name
end
end
end