import type { Sampling, AtomicTypeDef, TimeTruncExpr, TimeExtractExpr, TimeDeltaExpr, TypecastExpr, TimeLiteralNode, MeasureTimeExpr, RegexMatchExpr, BasicAtomicTypeDef, ArrayLiteralNode, RecordLiteralNode } from '../../model/malloy_types';
import type { DialectFunctionOverloadDef } from '../functions';
import type { DialectFieldList, FieldReferenceType, QueryInfo } from '../dialect';
import { Dialect } from '../dialect';
export declare class SnowflakeDialect extends Dialect {
    name: string;
    experimental: boolean;
    defaultNumberType: string;
    defaultDecimalType: string;
    udfPrefix: string;
    hasFinalStage: boolean;
    divisionIsInteger: boolean;
    supportsSumDistinctFunction: boolean;
    supportsSafeCast: boolean;
    supportsNesting: boolean;
    defaultSampling: {
        rows: number;
    };
    supportsHyperLogLog: boolean;
    unnestWithNumbers: boolean;
    supportUnnestArrayAgg: boolean;
    supportsAggDistinct: boolean;
    supportsCTEinCoorelatedSubQueries: boolean;
    dontUnionIndex: boolean;
    supportsQualify: boolean;
    supportsPipelinesInViews: boolean;
    supportsComplexFilteredSources: boolean;
    quoteTablePath(tablePath: string): string;
    sqlGroupSetTable(groupSetCount: number): string;
    sqlAnyValue(groupSet: number, fieldName: string): string;
    mapFields(fieldList: DialectFieldList): string;
    mapFieldsForObjectConstruct(fieldList: DialectFieldList): string;
    sqlAggregateTurtle(groupSet: number, fieldList: DialectFieldList, orderBy: string | undefined): string;
    sqlAnyValueTurtle(groupSet: number, fieldList: DialectFieldList): string;
    sqlAnyValueLastTurtle(name: string, groupSet: number, sqlName: string): string;
    sqlCoaleseMeasuresInline(groupSet: number, fieldList: DialectFieldList): string;
    sqlUnnestAlias(source: string, alias: string, _fieldList: DialectFieldList, _needDistinctKey: boolean, isArray: boolean, _isInNestedPipeline: boolean): string;
    sqlSumDistinctHashedKey(sqlDistinctKey: string): string;
    sqlSumDistinct(key: string, value: string, funcName: string): string;
    sqlGenerateUUID(): string;
    sqlFieldReference(parentAlias: string, parentType: FieldReferenceType, childName: string, childType: string): string;
    sqlUnnestPipelineHead(isSingleton: boolean, sourceSQLExpression: string): string;
    sqlCreateFunction(_id: string, _funcText: string): string;
    sqlCreateFunctionCombineLastStage(_lastStageName: string): string;
    sqlSelectAliasAsStruct(alias: string): string;
    sqlMaybeQuoteIdentifier(identifier: string): string;
    sqlCreateTableAsSelect(tableName: string, sql: string): string;
    sqlTruncExpr(qi: QueryInfo, te: TimeTruncExpr): string;
    sqlTimeExtractExpr(qi: QueryInfo, from: TimeExtractExpr): string;
    sqlAlterTimeExpr(df: TimeDeltaExpr): string;
    private atTz;
    sqlNowExpr(): string;
    sqlCast(qi: QueryInfo, cast: TypecastExpr): string;
    sqlLiteralTime(qi: QueryInfo, lf: TimeLiteralNode): string;
    sqlMeasureTimeExpr(df: MeasureTimeExpr): string;
    sqlRegexpMatch(compare: RegexMatchExpr): string;
    sqlSampleTable(tableSQL: string, sample: Sampling | undefined): string;
    sqlOrderBy(orderTerms: string[]): string;
    sqlLiteralString(literal: string): string;
    sqlLiteralRegexp(literal: string): string;
    getDialectFunctionOverrides(): {
        [name: string]: DialectFunctionOverloadDef[];
    };
    getDialectFunctions(): {
        [name: string]: DialectFunctionOverloadDef[];
    };
    malloyTypeToSQLType(malloyType: AtomicTypeDef): string;
    sqlTypeToMalloyType(sqlType: string): BasicAtomicTypeDef;
    castToString(expression: string): string;
    concat(...values: string[]): string;
    validateTypeName(sqlType: string): boolean;
    sqlLiteralRecord(lit: RecordLiteralNode): string;
    sqlLiteralArray(lit: ArrayLiteralNode): string;
}