import type { Expr, FunctionCallNode, FunctionOverloadDef, FunctionOrderBy, FieldnameNode, OutputFieldNode, GenericSQLExpr, FilteredExpr, UngroupNode, ParameterNode, AggregateExpr, SourceReferenceNode, CaseExpr } from './malloy_types';
import { type FieldInstanceResult } from './field_instance';
import { GenerateState } from './utils';
import type { QueryStruct } from './query_node';
/**
 * Converts an expression to SQL.
 * This function was extracted from QueryField.exprToSQL to break circular dependencies.
 */
export declare function exprToSQL(resultSet: FieldInstanceResult, context: QueryStruct, exprToTranslate: Expr, state?: GenerateState): string;
export declare function generateFunctionCallExpression(resultSet: FieldInstanceResult, context: QueryStruct, frag: FunctionCallNode, state: GenerateState): string;
export declare function generateFieldFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: FieldnameNode, state: GenerateState): string;
export declare function generateOutputFieldFragment(resultSet: FieldInstanceResult, _context: QueryStruct, frag: OutputFieldNode, _state: GenerateState): string;
export declare function generateParameterFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: ParameterNode, state: GenerateState): string;
export declare function generateFilterFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: FilteredExpr, state: GenerateState): string;
export declare function generateDimFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: Expr, state: GenerateState): string;
export declare function generateUngroupedFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: UngroupNode, state: GenerateState): string;
export declare function generateDistinctKeyIfNecessary(resultSet: FieldInstanceResult, context: QueryStruct, structPath: string[] | undefined): string | undefined;
export declare function generateSumFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: AggregateExpr, state: GenerateState): string;
export declare function generateSymmetricFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: AggregateExpr, state: GenerateState): string;
export declare function generateAvgFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: AggregateExpr, state: GenerateState): string;
export declare function generateCountFragment(resultSet: FieldInstanceResult, context: QueryStruct, expr: AggregateExpr, state: GenerateState): string;
export declare function generateSourceReference(resultSet: FieldInstanceResult, context: QueryStruct, expr: SourceReferenceNode): string;
export declare function generateCaseSQL(pf: CaseExpr): string;
export declare function getFunctionOrderBy(resultSet: FieldInstanceResult, context: QueryStruct, state: GenerateState, orderBy: FunctionOrderBy[], args: Expr[], overload: FunctionOverloadDef): string | undefined;
export declare function getAnalyticPartitions(resultStruct: FieldInstanceResult, extraPartitionFields?: string[]): string[];
export declare function stringsFromSQLExpression(resultSet: FieldInstanceResult, context: QueryStruct, e: GenericSQLExpr, state: GenerateState): Generator<string, void, unknown>;