Enum Response 

pub enum Response {
    Hello {
        protocol_version: u32,
        kind: Kind,
        name: String,
        version: String,
        capabilities: Vec<String>,
        provides: Vec<PluginId>,
    },
    VersionMismatch {
        min_version: u32,
        max_version: u32,
    },
    Describe {
        connection_fields: Vec<ConnectionField>,
        option_fields: Vec<OptionField>,
        identifier_quote: Option<String>,
        message_limit: Option<u64>,
    },
    Validated {
        errors: Vec<String>,
    },
    Ok {},
    Result {
        columns: Vec<String>,
    },
    ResultEnd {
        rows: u64,
    },
    NoResult {
        rows_affected: Option<u64>,
    },
    Written {
        files: Vec<String>,
        warnings: Vec<String>,
    },
    Delivered {
        location: String,
    },
    Loaded {
        relation: String,
        rows: u64,
        warning: Option<String>,
    },
    Error {
        message: String,
    },
}

Plugin → core.

Variants

Hello

Fields

protocol_version: u32

kind: Kind

name: String

version: String

capabilities: Vec<String>

provides: Vec<PluginId>

Every plugin the executable serves; empty for one that serves only kind/name.

VersionMismatch

Fields

min_version: u32

max_version: u32

Describe

Fields

connection_fields: Vec<ConnectionField>

option_fields: Vec<OptionField>

identifier_quote: Option<String>

Source: the character the database quotes identifiers with (" for DuckDB and Postgres, a backtick for Databricks). Core uses it to quote names a project asks to quote (a source’s quoting:). Every source sets it; other kinds leave it out.

message_limit: Option<u64>

Destination advertising message: the most characters a message may have in the service, after translation. Core shows it next to a message’s length in a preview.

Validated

Every problem with the options, each a sentence naming the key; empty when they’re fine.

Fields

errors: Vec<String>

Ok

Result

A result set follows as Arrow frames, ended by result_end.

Fields

columns: Vec<String>

ResultEnd

Fields

rows: u64

NoResult

Fields

rows_affected: Option<u64>

Written

Fields

files: Vec<String>

warnings: Vec<String>

Things the person should know about the files (a value written as text, say).

Delivered

Fields

location: String

Loaded

relation is what SQL uses to read the loaded rows. warning, when set, is shown to the user (e.g. the database has no bulk path, so a load this size is slow).

Fields

relation: String

rows: u64

warning: Option<String>

Error

Fields

message: String

Trait Implementations

impl Clone for Response

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Response

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Response

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Response

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Response

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 Response