import type { FieldRef } from './conditions';
import type { OrderByResult } from '../entity/db-context';
/**
 * Type guard to check if a value is a FieldRef
 */
export declare function isFieldRef(value: unknown): value is FieldRef;
/**
 * Type guard to check if a value has a field name (minimal FieldRef check)
 */
export declare function hasFieldName(value: unknown): value is {
    __fieldName: string;
    __dbColumnName?: string;
    __tableAlias?: string;
};
/**
 * Type guard to check if a value is an aggregate field ref
 */
export declare function isAggregateFieldRef(value: unknown): value is FieldRef & {
    __isAggregate: true;
};
/**
 * Order by field definition
 */
export interface OrderByField {
    field: string;
    table?: string;
    direction: 'ASC' | 'DESC';
}
/**
 * Parse orderBy selector result and populate orderByFields array
 * Handles three forms:
 * 1. Single field: p => p.colName
 * 2. Array of fields: p => [p.colName, p.otherCol]
 * 3. Array of tuples: p => [[p.colName, 'ASC'], [p.otherCol, 'DESC']]
 */
export declare function parseOrderBy<T>(result: OrderByResult<T>, orderByFields: OrderByField[], getFieldName?: (fieldRef: any) => string, getTable?: (fieldRef: any) => string | undefined): void;
/**
 * Get field name with table alias for qualified column names
 */
export declare function getQualifiedFieldName(fieldRef: any): string;
/**
 * Get table alias from field ref
 */
export declare function getTableAlias(fieldRef: any): string | undefined;
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