Struct WriteRel

pub struct WriteRel {
    pub table_schema: Option<NamedStruct>,
    pub op: i32,
    pub input: Option<Box<Rel>>,
    pub create_mode: i32,
    pub output: i32,
    pub common: Option<RelCommon>,
    pub advanced_extension: Option<AdvancedExtension>,
    pub write_type: Option<WriteType>,
}

The operator that modifies the content of a database (operates on 1 table at a time, but record-selection/source can be based on joining of multiple tables).

Fields

table_schema: Option<NamedStruct>

The schema of the table (must align with Rel input (e.g., number of leaf fields must match))

op: i32

The type of operation to perform

input: Option<Box<Rel>>

The relation that determines the records to add/remove/modify the schema must match with table_schema. Default values must be explicitly stated in a ProjectRel at the top of the input. The match must also occur in case of DELETE to ensure multi-engine plans are unequivocal.

create_mode: i32

Used with CTAS to determine what to do if the table already exists

output: i32

Output mode determines what is the output of executing this rel

common: Option<RelCommon>

advanced_extension: Option<AdvancedExtension>

write_type: Option<WriteType>

Definition of which TABLE we are operating on

Implementations

impl WriteRel

pub fn op(&self) -> WriteOp

Returns the enum value of op, or the default if the field is set to an invalid enum value.

pub fn set_op(&mut self, value: WriteOp)

Sets op to the provided enum value.

pub fn output(&self) -> OutputMode

Returns the enum value of output, or the default if the field is set to an invalid enum value.

pub fn set_output(&mut self, value: OutputMode)

Sets output to the provided enum value.

pub fn create_mode(&self) -> CreateMode

Returns the enum value of create_mode, or the default if the field is set to an invalid enum value.

pub fn set_create_mode(&mut self, value: CreateMode)

Sets create_mode to the provided enum value.

Trait Implementations

impl Clone for WriteRel

fn clone(&self) -> WriteRel

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WriteRel

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

Formats the value using the given formatter.

impl Default for WriteRel

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for WriteRel

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Message for WriteRel

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for WriteRel

fn eq(&self, other: &WriteRel) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for WriteRel

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for WriteRel