method

remove_index

v5.1.7 - Show latest stable - 0 notes - Class: SchemaStatements

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remove_index(table_name, options = {}) public

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# File activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb, line 488
        def remove_index(table_name, options = {}) #:nodoc:
          table = Utils.extract_schema_qualified_name(table_name.to_s)

          if options.is_a?(Hash) && options.key?(:name)
            provided_index = Utils.extract_schema_qualified_name(options[:name].to_s)

            options[:name] = provided_index.identifier
            table = PostgreSQL::Name.new(provided_index.schema, table.identifier) unless table.schema.present?

            if provided_index.schema.present? && table.schema != provided_index.schema
              raise ArgumentError.new("Index schema '#{provided_index.schema}' does not match table schema '#{table.schema}'")
            end
          end

          index_to_remove = PostgreSQL::Name.new(table.schema, index_name_for_remove(table.to_s, options))
          algorithm =
            if options.is_a?(Hash) && options.key?(:algorithm)
              index_algorithms.fetch(options[:algorithm]) do
                raise ArgumentError.new("Algorithm must be one of the following: #{index_algorithms.keys.map(&:inspect).join(', ')}")
              end
            end
          execute "DROP INDEX #{algorithm} #{quote_table_name(index_to_remove)}"
        end

remove_index

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