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SqlSession

corium_sql

Struct SqlSession 

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pub struct SqlSession { /* private fields */ }
Expand description

One read-only SQL environment over a fixed immutable database view.

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impl SqlSession

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pub fn new(db: &Db) -> Result<Self, SqlError>

Builds the SQL catalog for db.

Current, as-of, and since views get namespace-derived wide tables in corium; every view gets normalized relations in corium_sys.

§Errors

Returns SqlError when the database schema cannot be projected.

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pub const fn basis_t(&self) -> u64

Transaction basis captured by this session.

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pub const fn view(&self) -> DbView

Corium time view captured by this session.

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pub fn tables(&self) -> Vec<String>

Registered Corium relations as schema.table names.

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pub async fn query(&self, sql: &str) -> Result<SqlQuery, SqlError>

Plans and starts a read-only SQL query.

DDL, DML, and session-mutating statements are rejected. Dropping the returned stream cancels unfinished execution.

§Errors

Returns SqlError for SQL parsing, planning, or execution failure.

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