system.formats

Contains a list of all the formats along with flags whether a format is suitable for input/output or whether it supports parallelization.

Description

Contains a list of all the formats along with flags whether a format is suitable for input/output or whether it supports parallelization.

Columns

• name (String) — Format name.
• is_input (UInt8) — Flag that indicates whether the format is suitable for data input.
• is_output (UInt8) — Flag that indicates whether the format is suitable for data output.
• supports_parallel_parsing (UInt8) — Flag that indicates whether the format supports parallel parsing.
• supports_parallel_formatting (UInt8) — Flag that indicates whether the format supports parallel formatting.
• is_tty_friendly (UInt8) — Flag that indicates whether the format usually displays fine in the terminal. For other formats, CLI will ask before output.
• content_type (String) — HTTP Content-Type corresponding to the output format. May depend on the current format settings.
• supports_random_access (UInt8) — Flag that indicates whether the format supports random access in the input.
• has_schema_inference (UInt8) — The format can dynamically determine the schema from the data (either from embedded header/metadata or from the piece of data).
• has_external_schema (UInt8) — The format either has a fixed schema or accepts a predefined schema in its own format.
• prefers_large_blocks (UInt8) — The format will write larger blocks into output and generate larger blocks on input.
• supports_append (UInt8) — It’s possible to append into a single file with this format.
• supports_subsets_of_columns (UInt8) — The input format can recognize when certain columns are omitted.