Struct TableFieldSchema 

pub struct TableFieldSchema {

    pub categories: Option<TableFieldSchemaCategories>,
    pub collation: Option<String>,
    pub data_policies: Option<Vec<DataPolicyOption>>,
    pub default_value_expression: Option<String>,
    pub description: Option<String>,
    pub fields: Option<Vec<TableFieldSchema>>,
    pub foreign_type_definition: Option<String>,
    pub max_length: Option<i64>,
    pub mode: Option<String>,
    pub name: Option<String>,
    pub policy_tags: Option<TableFieldSchemaPolicyTags>,
    pub precision: Option<i64>,
    pub range_element_type: Option<TableFieldSchemaRangeElementType>,
    pub rounding_mode: Option<String>,
    pub scale: Option<i64>,
    pub timestamp_precision: Option<i64>,
    pub type_: Option<String>,
}

A field in TableSchema

This type is not used in any activity, and only used as part of another schema.

Fields

categories: Option<TableFieldSchemaCategories>

Deprecated.

collation: Option<String>

Optional. Field collation can be set only when the type of field is STRING. The following values are supported: * ‘und:ci’: undetermined locale, case insensitive. * ‘’: empty string. Default to case-sensitive behavior.

data_policies: Option<Vec<DataPolicyOption>>

Optional. Data policies attached to this field, used for field-level access control.

default_value_expression: Option<String>

Optional. A SQL expression to specify the [default value] (https://cloud.google.com/bigquery/docs/default-values) for this field.

description: Option<String>

Optional. The field description. The maximum length is 1,024 characters.

fields: Option<Vec<TableFieldSchema>>

Optional. Describes the nested schema fields if the type property is set to RECORD.

foreign_type_definition: Option<String>

Optional. Definition of the foreign data type. Only valid for top-level schema fields (not nested fields). If the type is FOREIGN, this field is required.

max_length: Option<i64>

Optional. Maximum length of values of this field for STRINGS or BYTES. If max_length is not specified, no maximum length constraint is imposed on this field. If type = “STRING”, then max_length represents the maximum UTF-8 length of strings in this field. If type = “BYTES”, then max_length represents the maximum number of bytes in this field. It is invalid to set this field if type ≠ “STRING” and ≠ “BYTES”.

mode: Option<String>

Optional. The field mode. Possible values include NULLABLE, REQUIRED and REPEATED. The default value is NULLABLE.

name: Option<String>

Required. The field name. The name must contain only letters (a-z, A-Z), numbers (0-9), or underscores (_), and must start with a letter or underscore. The maximum length is 300 characters.

policy_tags: Option<TableFieldSchemaPolicyTags>

Optional. The policy tags attached to this field, used for field-level access control. If not set, defaults to empty policy_tags.

precision: Option<i64>

Optional. Precision (maximum number of total digits in base 10) and scale (maximum number of digits in the fractional part in base 10) constraints for values of this field for NUMERIC or BIGNUMERIC. It is invalid to set precision or scale if type ≠ “NUMERIC” and ≠ “BIGNUMERIC”. If precision and scale are not specified, no value range constraint is imposed on this field insofar as values are permitted by the type. Values of this NUMERIC or BIGNUMERIC field must be in this range when: * Precision (P) and scale (S) are specified: [-10P-S + 10-S, 10P-S - 10-S] * Precision (P) is specified but not scale (and thus scale is interpreted to be equal to zero): [-10P + 1, 10P - 1]. Acceptable values for precision and scale if both are specified: * If type = “NUMERIC”: 1 ≤ precision - scale ≤ 29 and 0 ≤ scale ≤ 9. * If type = “BIGNUMERIC”: 1 ≤ precision - scale ≤ 38 and 0 ≤ scale ≤ 38. Acceptable values for precision if only precision is specified but not scale (and thus scale is interpreted to be equal to zero): * If type = “NUMERIC”: 1 ≤ precision ≤ 29. * If type = “BIGNUMERIC”: 1 ≤ precision ≤ 38. If scale is specified but not precision, then it is invalid.

range_element_type: Option<TableFieldSchemaRangeElementType>

Represents the type of a field element.

rounding_mode: Option<String>

Optional. Specifies the rounding mode to be used when storing values of NUMERIC and BIGNUMERIC type.

scale: Option<i64>

Optional. See documentation for precision.

timestamp_precision: Option<i64>

Optional. Precision (maximum number of total digits in base 10) for seconds of TIMESTAMP type. Possible values include: * 6 (Default, for TIMESTAMP type with microsecond precision) * 12 (For TIMESTAMP type with picosecond precision)

type_: Option<String>

Required. The field data type. Possible values include: * STRING * BYTES * INTEGER (or INT64) * FLOAT (or FLOAT64) * BOOLEAN (or BOOL) * TIMESTAMP * DATE * TIME * DATETIME * GEOGRAPHY * NUMERIC * BIGNUMERIC * JSON * RECORD (or STRUCT) * RANGE Use of RECORD/STRUCT indicates that the field contains a nested schema.

Trait Implementations

impl Clone for TableFieldSchema

fn clone(&self) -> TableFieldSchema

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TableFieldSchema

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TableFieldSchema

fn default() -> TableFieldSchema

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TableFieldSchema

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TableFieldSchema

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Part for TableFieldSchema