Struct SqlKvConfig 

pub struct SqlKvConfig {
    pub kind: String,
    pub url_env: Option<String>,
    pub path: Option<String>,
    pub pool_max: Option<u32>,
}

[serve.kv.sql] — the SQL control-plane KV backend connection (--kv sql). The connection URL is NEVER written in the config (UX-C2): a bring-your-own / remote engine names the env var holding it via url_env (mirroring ExternalDatabaseConfig), while an embedded single-node SQLite database names an on-disk file via path. Every field is also settable by BOATRAMP_KV_SQL_* env (resolved at serve wiring). This workstream (build-order step 1) wires sqlite (libsql-local) only; postgres/mysql are later workstreams.

Fields

kind: String

Engine: sqlite (aliases sqlite3/libsql) — the embedded single-node file; postgres (aliases postgresql/pg) or mysql (alias mariadb) — the multi-writer engines (later workstreams), the same alias set as the databases: block. Empty ⇒ sqlite.

url_env: Option<String>

Name of the env var holding the connection URL (e.g. postgres://…, or a remote sqld URL) — NEVER a raw URL in the config. Unused for an embedded single-node sqlite database (which uses path).

path: Option<String>

On-disk file path for an embedded single-node sqlite KV (e.g. /data/kv.db). The parent directory is created if absent. Ignored for postgres/mysql and for a remote-sqld URL.

pool_max: Option<u32>

Maximum pooled connections for a postgres/mysql KV (later workstreams). Ignored for the embedded sqlite path (one Database handle, connections opened per op).

Trait Implementations

impl Clone for SqlKvConfig

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 SqlKvConfig

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

Formats the value using the given formatter.

impl Default for SqlKvConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SqlKvConfig

where SqlKvConfig: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.