/**
 * This Source Code is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Copyright (c) Infonomic Company Limited
 *
 * The dialect-independent column manifest for the EAV store tables.
 *
 * Every adapter's UNION ALL over its `store_*` tables projects into the same
 * unified row shape (see `UnifiedFieldValue`). Instead of each adapter
 * hand-maintaining its own list of columns, adapters generate their SELECT
 * lists from this single manifest — adding a column or a new store table is
 * a one-line change here rather than N hand-synchronized SQL fragments.
 *
 * This module is pure data: no SQL, no drizzle-orm, no pg. Each adapter owns
 * its own SQL generation (e.g. `@byline/db-postgres`'s `storeSelectList()` +
 * `pgNullCast()`) consuming this manifest.
 */
import type { StoreType } from './field-store-map.js';
/**
 * Each entry describes one column in the unified UNION ALL output.
 *
 * - `name`:     The output column alias (matches UnifiedFieldValue / FlattenedFieldValue).
 * - `nullCast`: The abstract SQL type name used when a store table does NOT
 *               provide this column (e.g. `'boolean'`, `'uuid'`, `'text'`).
 *               Only the first SELECT in a UNION ALL strictly needs casts,
 *               but including them everywhere is harmless and makes each
 *               fragment self-describing. Each adapter maps this abstract
 *               name to its own dialect cast — the Postgres adapter's
 *               `pgNullCast()` renders it as `NULL::<cast>`.
 * - `sources`:  A map from store type key → the source column name that
 *               produces this column's value from that table. If a store
 *               type is absent, the column is emitted as a typed NULL.
 */
export interface ColumnDef {
    name: string;
    nullCast: string;
    sources?: Partial<Record<StoreType, string>>;
}
/** Store table names, keyed by StoreType. Shared naming convention across adapters. */
export declare const storeTableNames: Record<StoreType, string>;
/**
 * Canonical column order for the unified UNION ALL output.
 *
 * The first 7 columns are shared across all store tables (base columns).
 * The remaining columns are type-specific — each one declares which store
 * table(s) provide it and what source column to read.
 */
export declare const storeColumnManifest: ColumnDef[];