Enum SqliteTraceEvent 

#[non_exhaustive]
pub enum SqliteTraceEvent<'a> {
    #[non_exhaustive]
    Statement {
        sql: &'a str,
        readonly: bool,
    },
    #[non_exhaustive]
    Profile {
        sql: &'a str,
        duration_ns: u64,
        readonly: bool,
    },
    #[non_exhaustive]
    Row,
}

Available on crate feature __sqlite-shared only.

Trace events delivered to the trace callback.

The callback receives one of these events based on the mask registered with on_trace.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

#[non_exhaustive]

Statement

A prepared statement is beginning to execute.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

sql: &'a str

The unexpanded SQL text, with parameter placeholders. For triggers and nested statements SQLite may report this as a -- comment rather than the SQL itself.

readonly: bool

Whether the statement is read-only, via sqlite3_stmt_readonly (true for SELECT and read-only PRAGMA). Indirect writes, such as a user-defined function on another connection or a virtual table with side effects, are not detected.

#[non_exhaustive]

Profile

A prepared statement has finished executing.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

sql: &'a str

The SQL text of the statement (from sqlite3_sql).

duration_ns: u64

Time taken in nanoseconds.

readonly: bool

Whether the statement is read-only. See SqliteTraceEvent::Statement::readonly for details.

#[non_exhaustive]

Row

A row has been returned from a query.

Fires for every returned row and carries no data.

Trait Implementations

impl<'a> Clone for SqliteTraceEvent<'a>

fn clone(&self) -> SqliteTraceEvent<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for SqliteTraceEvent<'a>

impl<'a> Debug for SqliteTraceEvent<'a>

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

Formats the value using the given formatter.