Struct Connection 

pub struct Connection<'a> { /* private fields */ }

SQL connection with LRU statement cache.

Implementations

impl<'a> Connection<'a>

pub fn open(db: &'a Database) -> Result<Self>

Open a SQL connection to a database.

pub fn txn_start_ts(&self) -> Option<i64>

Txn-start UTC µs inside BEGIN/COMMIT, else None.

pub fn session_timezone(&self) -> String

Returns the session time-zone (IANA name or fixed offset). Default "UTC".

pub fn set_session_timezone(&self, tz: &str) -> Result<()>

Set the session time-zone. Accepts IANA names, ISO-8601 offsets, "UTC", "Z".

pub fn execute(&self, sql: &str) -> Result<ExecutionResult>

Execute a SQL statement. Returns the result.

pub fn execute_params( &self, sql: &str, params: &[Value], ) -> Result<ExecutionResult>

Execute a SQL statement with positional parameters ($1, $2, …).

pub fn query(&self, sql: &str) -> Result<QueryResult>

Execute a SQL query and return the result set.

pub fn query_params(&self, sql: &str, params: &[Value]) -> Result<QueryResult>

Execute a SQL query with positional parameters ($1, $2, …).

pub fn prepare(&self, sql: &str) -> Result<PreparedStatement<'_, 'a>>

Prepare a SQL statement for repeated execution with parameters.

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

List all table names.

pub fn in_transaction(&self) -> bool

Returns true if an explicit transaction is active (BEGIN was issued).

pub fn table_schema(&self, name: &str) -> Option<TableSchema>

Get the schema for a named table.

pub fn refresh_schema(&self) -> Result<()>

Reload schemas from the database.