Module cartridge.lua-api.compression

get_cluster_compression_info ()

This function gets compression info on cluster aggregated by instances. Function surfs by replicates to find master storages and calls on them __cartridgeGetStorageCompressionInfo() func.

Returns:

(table) {{instance_id, instance_compression_info},…}

Or

(nil)

(table) Error description

__cartridgeGetStorageCompressionInfo ()

This function finds all user spaces with correct schema and index and calculates compression for their fields.

Returns:

(table) {{space_name, fields_be_compressed},…}

Or

(nil)

(table) Error description

create_tmp_space (space_name, space_type, orig_index, orig_format, field_format)

This function creates temporary space.

Parameters:

• space_name: (string)
• space_type: (string)
• orig_index: (table)
• orig_format: (string)
• field_format: (string)

Returns:

(table)