Struct googapis::google::cloud::datacatalog::v1::ColumnSchema [−][src]
pub struct ColumnSchema {
pub column: String,
pub type: String,
pub description: String,
pub mode: String,
pub subcolumns: Vec<ColumnSchema>,
}
Expand description
A column within a schema. Columns can be nested inside other columns.
Fields
column: String
Required. Name of the column.
Must be a UTF-8 string without dots (.). The maximum size is 64 bytes.
type: String
Required. Type of the column.
Must be a UTF-8 string with the maximum size of 128 bytes.
description: String
Optional. Description of the column. Default value is an empty string.
The description must be a UTF-8 string with the maximum size of 2000 bytes.
mode: String
Optional. A column’s mode indicates whether values in this column are required, nullable, or repeated.
Only NULLABLE
, REQUIRED
, and REPEATED
values are supported.
Default mode is NULLABLE
.
subcolumns: Vec<ColumnSchema>
Optional. Schema of sub-columns. A column can have zero or more sub-columns.
Trait Implementations
fn merge_field<B>(
&mut self,
tag: u32,
wire_type: WireType,
buf: &mut B,
ctx: DecodeContext
) -> Result<(), DecodeError> where
B: Buf,
Returns the encoded length of the message without a length delimiter.
Encodes the message to a buffer. Read more
Encodes the message to a newly allocated buffer.
Encodes the message with a length-delimiter to a buffer. Read more
Encodes the message with a length-delimiter to a newly allocated buffer.
Decodes an instance of the message from a buffer. Read more
fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
Self: Default,
B: Buf,
fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
Self: Default,
B: Buf,
Decodes a length-delimited instance of the message from the buffer.
Decodes an instance of the message from a buffer, and merges it into self
. Read more
Decodes a length-delimited instance of the message from buffer, and
merges it into self
. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
Auto Trait Implementations
impl RefUnwindSafe for ColumnSchema
impl Send for ColumnSchema
impl Sync for ColumnSchema
impl Unpin for ColumnSchema
impl UnwindSafe for ColumnSchema
Blanket Implementations
Mutably borrows from an owned value. Read more
Wrap the input message T
in a tonic::Request
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more