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# frozen_string_literal: true
module Gitlab
module Database
class PostgresIndex < ActiveRecord::Base
include Gitlab::Utils::StrongMemoize
self.table_name = 'postgres_indexes'
self.primary_key = 'identifier'
has_one :bloat_estimate, class_name: 'Gitlab::Database::PostgresIndexBloatEstimate', foreign_key: :identifier
has_many :reindexing_actions, class_name: 'Gitlab::Database::Reindexing::ReindexAction', foreign_key: :index_identifier
scope :by_identifier, ->(identifier) do
raise ArgumentError, "Index name is not fully qualified with a schema: #{identifier}" unless identifier =~ /^\w+\.\w+$/
find(identifier)
end
# A 'regular' index is a non-unique index,
# that does not serve an exclusion constraint and
# is defined on a table that is not partitioned.
scope :regular, -> { where(unique: false, partitioned: false, exclusion: false)}
scope :not_match, ->(regex) { where("name !~ ?", regex)}
scope :not_recently_reindexed, -> do
recent_actions = Reindexing::ReindexAction.recent.where('index_identifier = identifier')
where('NOT EXISTS (?)', recent_actions)
end
def bloat_size
strong_memoize(:bloat_size) { bloat_estimate&.bloat_size || 0 }
end
def to_s
name
end
end
end
end
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