Module expr 

SQL expression helpers for dynamic queries. Helpers for building safe SQL expressions for use with Values.

Expressions are SQL fragments that can be embedded into {set:...}, {insert:...}, and {where:...} placeholders. Unlike regular bound values, expressions may expand to arbitrary SQL (optionally containing their own bind parameters).

Expression fragments support anonymous ? and named bind parameters. Numeric positional placeholders such as ?1 and numeric $1 are rejected when an expression is embedded because their absolute SQLite indices cannot be safely rebased inside a larger statement.

Use curated helpers (like crate::expr::now_rfc3339_utc) whenever possible. If you must embed ad-hoc SQL, use crate::expr::raw, which will taint the resulting query.

Structs

Expr

A SQL expression fragment with optional bound parameters.

Functions

jsonb

Wrap a JSON text value with SQLite’s jsonb(...) function.

jsonb_serde

Serialize a value to JSON and wrap it with SQLite’s jsonb(...) function.

jsonb_text

Wrap a JSON text value with SQLite’s jsonb(...) function.

now_rfc3339_utc

SQLite expression for the current UTC time, formatted as RFC3339.

raw

Embed raw SQL as an expression and taint the resulting query.