import type { SQLChunk } from "../core/sql.js";
import type { ColumnConfig } from "../types/index.js";
import type { Table } from "./table.js";
export declare abstract class ConstraintBuilder {
    abstract build(): Record<string, unknown>;
}
export declare class IndexBuilder extends ConstraintBuilder {
    readonly name?: string | undefined;
    readonly isUnique: boolean;
    private _columns;
    private _using?;
    private _where?;
    constructor(name?: string | undefined, isUnique?: boolean);
    on(...columns: ColumnConfig[]): this;
    using(method: "btree" | "hash" | "gin" | "gist" | "brin"): this;
    where(condition: string): this;
    build(): {
        type: string;
        name: string | undefined;
        columns: string[];
        unique: boolean;
        using: "brin" | "btree" | "gin" | "gist" | "hash" | undefined;
        where: string | undefined;
    };
}
export declare class CheckConstraintBuilder extends ConstraintBuilder {
    readonly condition: SQLChunk;
    readonly name?: string | undefined;
    constructor(condition: SQLChunk, name?: string | undefined);
    build(): {
        type: string;
        name: string | undefined;
        condition: string;
    };
}
export declare class PrimaryKeyBuilder extends ConstraintBuilder {
    readonly name?: string | undefined;
    private _columns;
    constructor(name?: string | undefined);
    on(...columns: ColumnConfig[]): this;
    build(): {
        type: string;
        name: string | undefined;
        columns: string[];
    };
}
export declare class ForeignKeyBuilder extends ConstraintBuilder {
    readonly name?: string | undefined;
    private _columns;
    private _foreignTable?;
    private _foreignColumns;
    private _onDelete?;
    private _onUpdate?;
    constructor(name?: string | undefined);
    on(...columns: ColumnConfig[]): this;
    references(table: Table<string, Record<string, ColumnConfig<any, any, any, any>>>, ...columns: ColumnConfig[]): this;
    onDelete(action: "cascade" | "set null" | "set default" | "restrict" | "no action"): this;
    onUpdate(action: "cascade" | "set null" | "set default" | "restrict" | "no action"): this;
    build(): {
        type: string;
        name: string | undefined;
        columns: string[];
        foreignTable: string;
        foreignColumns: string[];
        onDelete: "cascade" | "no action" | "restrict" | "set default" | "set null" | undefined;
        onUpdate: "cascade" | "no action" | "restrict" | "set default" | "set null" | undefined;
    };
}
export declare const index: (name?: string) => IndexBuilder;
export declare const unique: (name?: string) => IndexBuilder;
export declare const check: (condition: SQLChunk, name?: string) => CheckConstraintBuilder;
export declare const primaryKey: (name?: string) => PrimaryKeyBuilder;
export declare const foreignKey: (name?: string) => ForeignKeyBuilder;
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