pub struct CommandGetExportedKeys {
pub catalog: Option<String>,
pub db_schema: Option<String>,
pub table: String,
}
Expand description
Represents a request to retrieve a description of the foreign key columns that reference the given table’s primary key columns (the foreign keys exported by a table) of a table on a Flight SQL enabled backend. Used in the command member of FlightDescriptor for the following RPC calls:
- GetSchema: return the Arrow schema of the query.
- GetFlightInfo: execute the catalog metadata request.
The returned Arrow schema will be: < pk_catalog_name: utf8, pk_db_schema_name: utf8, pk_table_name: utf8 not null, pk_column_name: utf8 not null, fk_catalog_name: utf8, fk_db_schema_name: utf8, fk_table_name: utf8 not null, fk_column_name: utf8 not null, key_sequence: int32 not null, fk_key_name: utf8, pk_key_name: utf8, update_rule: uint8 not null, delete_rule: uint8 not null
The returned data should be ordered by fk_catalog_name, fk_db_schema_name, fk_table_name, fk_key_name, then key_sequence. update_rule and delete_rule returns a byte that is equivalent to actions declared on UpdateDeleteRules enum.
Fields§
§catalog: Option<String>
Specifies the catalog to search for the foreign key table. An empty string retrieves those without a catalog. If omitted the catalog name should not be used to narrow the search.
db_schema: Option<String>
Specifies the schema to search for the foreign key table. An empty string retrieves those without a schema. If omitted the schema name should not be used to narrow the search.
table: String
Specifies the foreign key table to get the foreign keys for.
Implementations§
Trait Implementations§
Source§impl Clone for CommandGetExportedKeys
impl Clone for CommandGetExportedKeys
Source§fn clone(&self) -> CommandGetExportedKeys
fn clone(&self) -> CommandGetExportedKeys
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl Debug for CommandGetExportedKeys
impl Debug for CommandGetExportedKeys
Source§impl Default for CommandGetExportedKeys
impl Default for CommandGetExportedKeys
Source§impl Message for CommandGetExportedKeys
impl Message for CommandGetExportedKeys
Source§fn encoded_len(&self) -> usize
fn encoded_len(&self) -> usize
Source§fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>where
Self: Sized,
fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>where
Self: Sized,
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Self: Sized,
fn encode_to_vec(&self) -> Vec<u8>where
Self: Sized,
Source§fn encode_length_delimited(
&self,
buf: &mut impl BufMut,
) -> Result<(), EncodeError>where
Self: Sized,
fn encode_length_delimited(
&self,
buf: &mut impl BufMut,
) -> Result<(), EncodeError>where
Self: Sized,
Source§fn encode_length_delimited_to_vec(&self) -> Vec<u8>where
Self: Sized,
fn encode_length_delimited_to_vec(&self) -> Vec<u8>where
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fn decode(buf: impl Buf) -> Result<Self, DecodeError>where
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fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>where
Self: Default,
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Self: Sized,
fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>where
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self
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Self: Sized,
fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>where
Self: Sized,
self
.Source§impl PartialEq for CommandGetExportedKeys
impl PartialEq for CommandGetExportedKeys
impl StructuralPartialEq for CommandGetExportedKeys
Auto Trait Implementations§
impl Freeze for CommandGetExportedKeys
impl RefUnwindSafe for CommandGetExportedKeys
impl Send for CommandGetExportedKeys
impl Sync for CommandGetExportedKeys
impl Unpin for CommandGetExportedKeys
impl UnwindSafe for CommandGetExportedKeys
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Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
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Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T> CloneToUninit for Twhere
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Source§unsafe fn clone_to_uninit(&self, dst: *mut T)
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Source§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
Source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
T
in a tonic::Request