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These settings are autogenerated from source.

format_display_secrets_in_show_and_select

Enables or disables showing secrets in SHOW and SELECT queries for tables, databases, table functions, and dictionaries. User wishing to see secrets must also have display_secrets_in_show_and_select server setting turned on and a displaySecretsInShowAndSelect privilege. Possible values:
  • 0 — Disabled.
  • 1 — Enabled.

format_geojson_validate_geometry

Controls whether the GeoJSON format enforces RFC 7946 geometry validity, in both directions. When enabled (default), a geometry that violates the GeoJSON shape rules is rejected: a LineString (or a line of a MultiLineString) with fewer than two points; a Polygon or MultiPolygon ring with fewer than four points or whose first and last points differ (an unclosed ring); or an empty MultiLineString, Polygon, or MultiPolygon. This applies both when reading (such a document is rejected) and when writing (such a ClickHouse value is rejected instead of producing a document the input format would reject). When disabled, these shape rules are not enforced: such geometries are read as-is and written as-is, so degenerate geometries round-trip, but a written document may not be valid GeoJSON. The validation is structural only: it checks point counts and ring closure. It does not inspect the geometric correctness of a shape — ring orientation (the right-hand rule / winding order) is not enforced, and structurally valid but geometrically degenerate geometries are accepted, such as a zero-area polygon, a self-intersecting ring, or a polygon whose holes lie outside its outer ring. Non-finite coordinates (NaN, Inf) are always rejected regardless of this setting, because they cannot be represented as JSON numbers.

format_json_object_each_row_column_for_object_name

The name of column that will be used for storing/writing object names in JSONObjectEachRow format. Column type should be String. If value is empty, default names row_{i}will be used for object names.

format_protobuf_use_autogenerated_schema

Use autogenerated Protobuf when format_schema is not set

format_tsv_null_representation

Custom NULL representation in TSV format
Last modified on July 22, 2026