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# frozen_string_literal: true
module Gitlab
module Database
class PostgresIndex < SharedModel
include Gitlab::Utils::StrongMemoize
self.table_name = 'postgres_indexes'
self.primary_key = 'identifier'
self.inheritance_column = :_type_disabled
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
has_many :queued_reindexing_actions, class_name: 'Gitlab::Database::Reindexing::QueuedAction', foreign_key: :index_identifier
scope :by_identifier, ->(identifier) do
unless identifier =~ Gitlab::Database::FULLY_QUALIFIED_IDENTIFIER
raise ArgumentError, "Index name is not fully qualified with a schema: #{identifier}"
end
find(identifier)
end
# Indexes with reindexing support
scope :reindexing_support, -> do
where(partitioned: false, exclusion: false, expression: false, type: Gitlab::Database::Reindexing::SUPPORTED_TYPES)
.not_match("#{Gitlab::Database::Reindexing::ReindexConcurrently::TEMPORARY_INDEX_PATTERN}$")
end
scope :reindexing_leftovers, -> { match("#{Gitlab::Database::Reindexing::ReindexConcurrently::TEMPORARY_INDEX_PATTERN}$") }
scope :not_match, ->(regex) { where("name !~ ?", regex) }
scope :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 reset
reload # rubocop:disable Cop/ActiveRecordAssociationReload
clear_memoization(:bloat_size)
end
def bloat_size
strong_memoize(:bloat_size) { bloat_estimate&.bloat_size || 0 }
end
def relative_bloat_level
bloat_size / ondisk_size_bytes.to_f
end
def to_s
name
end
end
end
end
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