66 lines
2.0 KiB
Ruby
66 lines
2.0 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Database
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class PostgresPartition < SharedModel
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self.primary_key = :identifier
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belongs_to :postgres_partitioned_table, foreign_key: 'parent_identifier', primary_key: 'identifier'
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# identifier includes the partition schema.
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# For example 'gitlab_partitions_static.events_03', or 'gitlab_partitions_dynamic.logs_03'
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scope :for_identifier, ->(identifier) do
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unless Gitlab::Database::FULLY_QUALIFIED_IDENTIFIER.match?(identifier)
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raise ArgumentError, "Partition name is not fully qualified with a schema: #{identifier}"
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end
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where(primary_key => identifier)
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end
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scope :by_identifier, ->(identifier) do
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for_identifier(identifier).first!
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end
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scope :for_parent_table, ->(parent_table) do
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if Database::FULLY_QUALIFIED_IDENTIFIER.match?(parent_table)
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where(parent_identifier: parent_table).order(:name)
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else
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where("parent_identifier = concat(current_schema(), '.', ?)", parent_table).order(:name)
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end
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end
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scope :with_parent_tables, ->(parent_tables) do
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parent_identifiers = parent_tables.map { |name| "#{connection.current_schema}.#{name}" }
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where(parent_identifier: parent_identifiers).order(:name)
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end
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scope :with_list_constraint, ->(condition) do
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where(sanitize_sql_for_conditions(['condition LIKE ?', "FOR VALUES IN (%'#{condition.to_i}'%)"]))
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end
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scope :above_threshold, ->(threshold) do
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where('pg_table_size(identifier) > ?', threshold)
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end
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def self.partition_exists?(table_name)
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where("identifier = concat(current_schema(), '.', ?)", table_name).exists?
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end
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def self.legacy_partition_exists?(table_name)
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result = connection.select_value(<<~SQL)
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SELECT true FROM pg_class
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WHERE relname = '#{table_name}'
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AND relispartition = true;
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SQL
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!!result
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end
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def to_s
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name
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end
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end
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end
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end
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