/**
 * IRExpression → PostgreSQL SQL translator.
 *
 * Used by the materialized-views projection to translate computed-property
 * expressions from the IR into SELECT expressions suitable for
 * `CREATE MATERIALIZED VIEW` bodies.
 *
 * Boundary: the translator emits literal SQL fragments. It does NOT validate
 * that the resulting SQL is well-formed; it trusts the IR expression tree
 * and the `views[].columns` overrides supplied by the consumer.
 *
 * Unsupported expression kinds produce a diagnostic. The generator collects
 * diagnostics and emits error-level entries for unsupported forms.
 */
import type { IRExpression } from '../../ir';
import type { ProjectionDiagnostic } from '../interface';
export interface ExpressionTranslation {
    sql: string;
    diagnostics: ProjectionDiagnostic[];
}
/**
 * Translate an IRExpression to a PostgreSQL SELECT expression.
 *
 * The `entityName` is used only for diagnostic context. The `columnResolver`
 * maps a property name (e.g. "amount") to its SQL column name (e.g. "amount")
 * — this lets the generator apply consumer-supplied column mappings.
 */
export declare function translateExpression(expr: IRExpression, columnResolver: (propName: string) => string | undefined, entityName: string): ExpressionTranslation;
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