knowledge/node_modules/drizzle-orm/mysql-core/query-builders/select.js

import { entityKind, is } from "../../entity.js";
import { MySqlTable } from "../table.js";
import { TypedQueryBuilder } from "../../query-builders/query-builder.js";
import { QueryPromise } from "../../query-promise.js";
import { SelectionProxyHandler } from "../../selection-proxy.js";
import { SQL, View } from "../../sql/sql.js";
import { Subquery } from "../../subquery.js";
import { Table } from "../../table.js";
import { applyMixins, getTableColumns, getTableLikeName, haveSameKeys, orderSelectedFields } from "../../utils.js";
import { ViewBaseConfig } from "../../view-common.js";
import { convertIndexToString, extractUsedTable, toArray } from "../utils.js";
import { MySqlViewBase } from "../view-base.js";
class MySqlSelectBuilder {
  static [entityKind] = "MySqlSelectBuilder";
  fields;
  session;
  dialect;
  withList = [];
  distinct;
  constructor(config) {
    this.fields = config.fields;
    this.session = config.session;
    this.dialect = config.dialect;
    if (config.withList) {
      this.withList = config.withList;
    }
    this.distinct = config.distinct;
  }
  from(source, onIndex) {
    const isPartialSelect = !!this.fields;
    let fields;
    if (this.fields) {
      fields = this.fields;
    } else if (is(source, Subquery)) {
      fields = Object.fromEntries(
        Object.keys(source._.selectedFields).map((key) => [key, source[key]])
      );
    } else if (is(source, MySqlViewBase)) {
      fields = source[ViewBaseConfig].selectedFields;
    } else if (is(source, SQL)) {
      fields = {};
    } else {
      fields = getTableColumns(source);
    }
    let useIndex = [];
    let forceIndex = [];
    let ignoreIndex = [];
    if (is(source, MySqlTable) && onIndex && typeof onIndex !== "string") {
      if (onIndex.useIndex) {
        useIndex = convertIndexToString(toArray(onIndex.useIndex));
      }
      if (onIndex.forceIndex) {
        forceIndex = convertIndexToString(toArray(onIndex.forceIndex));
      }
      if (onIndex.ignoreIndex) {
        ignoreIndex = convertIndexToString(toArray(onIndex.ignoreIndex));
      }
    }
    return new MySqlSelectBase(
      {
        table: source,
        fields,
        isPartialSelect,
        session: this.session,
        dialect: this.dialect,
        withList: this.withList,
        distinct: this.distinct,
        useIndex,
        forceIndex,
        ignoreIndex
      }
    );
  }
}
class MySqlSelectQueryBuilderBase extends TypedQueryBuilder {
  static [entityKind] = "MySqlSelectQueryBuilder";
  _;
  config;
  joinsNotNullableMap;
  tableName;
  isPartialSelect;
  /** @internal */
  session;
  dialect;
  cacheConfig = void 0;
  usedTables = /* @__PURE__ */ new Set();
  constructor({ table, fields, isPartialSelect, session, dialect, withList, distinct, useIndex, forceIndex, ignoreIndex }) {
    super();
    this.config = {
      withList,
      table,
      fields: { ...fields },
      distinct,
      setOperators: [],
      useIndex,
      forceIndex,
      ignoreIndex
    };
    this.isPartialSelect = isPartialSelect;
    this.session = session;
    this.dialect = dialect;
    this._ = {
      selectedFields: fields,
      config: this.config
    };
    this.tableName = getTableLikeName(table);
    this.joinsNotNullableMap = typeof this.tableName === "string" ? { [this.tableName]: true } : {};
    for (const item of extractUsedTable(table)) this.usedTables.add(item);
  }
  /** @internal */
  getUsedTables() {
    return [...this.usedTables];
  }
  createJoin(joinType, lateral) {
    return (table, a, b) => {
      const isCrossJoin = joinType === "cross";
      let on = isCrossJoin ? void 0 : a;
      const onIndex = isCrossJoin ? a : b;
      const baseTableName = this.tableName;
      const tableName = getTableLikeName(table);
      for (const item of extractUsedTable(table)) this.usedTables.add(item);
      if (typeof tableName === "string" && this.config.joins?.some((join) => join.alias === tableName)) {
        throw new Error(`Alias "${tableName}" is already used in this query`);
      }
      if (!this.isPartialSelect) {
        if (Object.keys(this.joinsNotNullableMap).length === 1 && typeof baseTableName === "string") {
          this.config.fields = {
            [baseTableName]: this.config.fields
          };
        }
        if (typeof tableName === "string" && !is(table, SQL)) {
          const selection = is(table, Subquery) ? table._.selectedFields : is(table, View) ? table[ViewBaseConfig].selectedFields : table[Table.Symbol.Columns];
          this.config.fields[tableName] = selection;
        }
      }
      if (typeof on === "function") {
        on = on(
          new Proxy(
            this.config.fields,
            new SelectionProxyHandler({ sqlAliasedBehavior: "sql", sqlBehavior: "sql" })
          )
        );
      }
      if (!this.config.joins) {
        this.config.joins = [];
      }
      let useIndex = [];
      let forceIndex = [];
      let ignoreIndex = [];
      if (is(table, MySqlTable) && onIndex && typeof onIndex !== "string") {
        if (onIndex.useIndex) {
          useIndex = convertIndexToString(toArray(onIndex.useIndex));
        }
        if (onIndex.forceIndex) {
          forceIndex = convertIndexToString(toArray(onIndex.forceIndex));
        }
        if (onIndex.ignoreIndex) {
          ignoreIndex = convertIndexToString(toArray(onIndex.ignoreIndex));
        }
      }
      this.config.joins.push({ on, table, joinType, alias: tableName, useIndex, forceIndex, ignoreIndex, lateral });
      if (typeof tableName === "string") {
        switch (joinType) {
          case "left": {
            this.joinsNotNullableMap[tableName] = false;
            break;
          }
          case "right": {
            this.joinsNotNullableMap = Object.fromEntries(
              Object.entries(this.joinsNotNullableMap).map(([key]) => [key, false])
            );
            this.joinsNotNullableMap[tableName] = true;
            break;
          }
          case "cross":
          case "inner": {
            this.joinsNotNullableMap[tableName] = true;
            break;
          }
        }
      }
      return this;
    };
  }
  /**
   * Executes a `left join` operation by adding another table to the current query.
   *
   * Calling this method associates each row of the table with the corresponding row from the joined table, if a match is found. If no matching row exists, it sets all columns of the joined table to null.
   *
   * See docs: {@link https://orm.drizzle.team/docs/joins#left-join}
   *
   * @param table the table to join.
   * @param on the `on` clause.
   * @param onIndex index hint.
   *
   * @example
   *
   * ```ts
   * // Select all users and their pets
   * const usersWithPets: { user: User; pets: Pet | null; }[] = await db.select()
   *   .from(users)
   *   .leftJoin(pets, eq(users.id, pets.ownerId))
   *
   * // Select userId and petId
   * const usersIdsAndPetIds: { userId: number; petId: number | null; }[] = await db.select({
   *   userId: users.id,
   *   petId: pets.id,
   * })
   *   .from(users)
   *   .leftJoin(pets, eq(users.id, pets.ownerId))
   *
   * // Select userId and petId with use index hint
   * const usersIdsAndPetIds: { userId: number; petId: number | null; }[] = await db.select({
   *   userId: users.id,
   *   petId: pets.id,
   * })
   *   .from(users)
   *   .leftJoin(pets, eq(users.id, pets.ownerId), {
   *     useIndex: ['pets_owner_id_index']
   * })
   * ```
   */
  leftJoin = this.createJoin("left", false);
  /**
   * Executes a `left join lateral` operation by adding subquery to the current query.
   *
   * A `lateral` join allows the right-hand expression to refer to columns from the left-hand side.
   *
   * Calling this method associates each row of the table with the corresponding row from the joined table, if a match is found. If no matching row exists, it sets all columns of the joined table to null.
   *
   * See docs: {@link https://orm.drizzle.team/docs/joins#left-join-lateral}
   *
   * @param table the subquery to join.
   * @param on the `on` clause.
   */
  leftJoinLateral = this.createJoin("left", true);
  /**
   * Executes a `right join` operation by adding another table to the current query.
   *
   * Calling this method associates each row of the joined table with the corresponding row from the main table, if a match is found. If no matching row exists, it sets all columns of the main table to null.
   *
   * See docs: {@link https://orm.drizzle.team/docs/joins#right-join}
   *
   * @param table the table to join.
   * @param on the `on` clause.
   * @param onIndex index hint.
   *
   * @example
   *
   * ```ts
   * // Select all users and their pets
   * const usersWithPets: { user: User | null; pets: Pet; }[] = await db.select()
   *   .from(users)
   *   .rightJoin(pets, eq(users.id, pets.ownerId))
   *
   * // Select userId and petId
   * const usersIdsAndPetIds: { userId: number | null; petId: number; }[] = await db.select({
   *   userId: users.id,
   *   petId: pets.id,
   * })
   *   .from(users)
   *   .rightJoin(pets, eq(users.id, pets.ownerId))
   *
   * // Select userId and petId with use index hint
   * const usersIdsAndPetIds: { userId: number; petId: number | null; }[] = await db.select({
   *   userId: users.id,
   *   petId: pets.id,
   * })
   *   .from(users)
   *   .leftJoin(pets, eq(users.id, pets.ownerId), {
   *     useIndex: ['pets_owner_id_index']
   * })
   * ```
   */
  rightJoin = this.createJoin("right", false);
  /**
   * Executes an `inner join` operation, creating a new table by combining rows from two tables that have matching values.
   *
   * Calling this method retrieves rows that have corresponding entries in both joined tables. Rows without matching entries in either table are excluded, resulting in a table that includes only matching pairs.
   *
   * See docs: {@link https://orm.drizzle.team/docs/joins#inner-join}
   *
   * @param table the table to join.
   * @param on the `on` clause.
   * @param onIndex index hint.
   *
   * @example
   *
   * ```ts
   * // Select all users and their pets
   * const usersWithPets: { user: User; pets: Pet; }[] = await db.select()
   *   .from(users)
   *   .innerJoin(pets, eq(users.id, pets.ownerId))
   *
   * // Select userId and petId
   * const usersIdsAndPetIds: { userId: number; petId: number; }[] = await db.select({
   *   userId: users.id,
   *   petId: pets.id,
   * })
   *   .from(users)
   *   .innerJoin(pets, eq(users.id, pets.ownerId))
   *
   * // Select userId and petId with use index hint
   * const usersIdsAndPetIds: { userId: number; petId: number | null; }[] = await db.select({
   *   userId: users.id,
   *   petId: pets.id,
   * })
   *   .from(users)
   *   .leftJoin(pets, eq(users.id, pets.ownerId), {
   *     useIndex: ['pets_owner_id_index']
   * })
   * ```
   */
  innerJoin = this.createJoin("inner", false);
  /**
   * Executes an `inner join lateral` operation, creating a new table by combining rows from two queries that have matching values.
   *
   * A `lateral` join allows the right-hand expression to refer to columns from the left-hand side.
   *
   * Calling this method retrieves rows that have corresponding entries in both joined tables. Rows without matching entries in either table are excluded, resulting in a table that includes only matching pairs.
   *
   * See docs: {@link https://orm.drizzle.team/docs/joins#inner-join-lateral}
   *
   * @param table the subquery to join.
   * @param on the `on` clause.
   */
  innerJoinLateral = this.createJoin("inner", true);
  /**
   * Executes a `cross join` operation by combining rows from two tables into a new table.
   *
   * Calling this method retrieves all rows from both main and joined tables, merging all rows from each table.
   *
   * See docs: {@link https://orm.drizzle.team/docs/joins#cross-join}
   *
   * @param table the table to join.
   * @param onIndex index hint.
   *
   * @example
   *
   * ```ts
   * // Select all users, each user with every pet
   * const usersWithPets: { user: User; pets: Pet; }[] = await db.select()
   *   .from(users)
   *   .crossJoin(pets)
   *
   * // Select userId and petId
   * const usersIdsAndPetIds: { userId: number; petId: number; }[] = await db.select({
   *   userId: users.id,
   *   petId: pets.id,
   * })
   *   .from(users)
   *   .crossJoin(pets)
   *
   * // Select userId and petId with use index hint
   * const usersIdsAndPetIds: { userId: number; petId: number; }[] = await db.select({
   *   userId: users.id,
   *   petId: pets.id,
   * })
   *   .from(users)
   *   .crossJoin(pets, {
   *     useIndex: ['pets_owner_id_index']
   * })
   * ```
   */
  crossJoin = this.createJoin("cross", false);
  /**
   * Executes a `cross join lateral` operation by combining rows from two queries into a new table.
   *
   * A `lateral` join allows the right-hand expression to refer to columns from the left-hand side.
   *
   * Calling this method retrieves all rows from both main and joined queries, merging all rows from each query.
   *
   * See docs: {@link https://orm.drizzle.team/docs/joins#cross-join-lateral}
   *
   * @param table the query to join.
   */
  crossJoinLateral = this.createJoin("cross", true);
  createSetOperator(type, isAll) {
    return (rightSelection) => {
      const rightSelect = typeof rightSelection === "function" ? rightSelection(getMySqlSetOperators()) : rightSelection;
      if (!haveSameKeys(this.getSelectedFields(), rightSelect.getSelectedFields())) {
        throw new Error(
          "Set operator error (union / intersect / except): selected fields are not the same or are in a different order"
        );
      }
      this.config.setOperators.push({ type, isAll, rightSelect });
      return this;
    };
  }
  /**
   * Adds `union` set operator to the query.
   *
   * Calling this method will combine the result sets of the `select` statements and remove any duplicate rows that appear across them.
   *
   * See docs: {@link https://orm.drizzle.team/docs/set-operations#union}
   *
   * @example
   *
   * ```ts
   * // Select all unique names from customers and users tables
   * await db.select({ name: users.name })
   *   .from(users)
   *   .union(
   *     db.select({ name: customers.name }).from(customers)
   *   );
   * // or
   * import { union } from 'drizzle-orm/mysql-core'
   *
   * await union(
   *   db.select({ name: users.name }).from(users),
   *   db.select({ name: customers.name }).from(customers)
   * );
   * ```
   */
  union = this.createSetOperator("union", false);
  /**
   * Adds `union all` set operator to the query.
   *
   * Calling this method will combine the result-set of the `select` statements and keep all duplicate rows that appear across them.
   *
   * See docs: {@link https://orm.drizzle.team/docs/set-operations#union-all}
   *
   * @example
   *
   * ```ts
   * // Select all transaction ids from both online and in-store sales
   * await db.select({ transaction: onlineSales.transactionId })
   *   .from(onlineSales)
   *   .unionAll(
   *     db.select({ transaction: inStoreSales.transactionId }).from(inStoreSales)
   *   );
   * // or
   * import { unionAll } from 'drizzle-orm/mysql-core'
   *
   * await unionAll(
   *   db.select({ transaction: onlineSales.transactionId }).from(onlineSales),
   *   db.select({ transaction: inStoreSales.transactionId }).from(inStoreSales)
   * );
   * ```
   */
  unionAll = this.createSetOperator("union", true);
  /**
   * Adds `intersect` set operator to the query.
   *
   * Calling this method will retain only the rows that are present in both result sets and eliminate duplicates.
   *
   * See docs: {@link https://orm.drizzle.team/docs/set-operations#intersect}
   *
   * @example
   *
   * ```ts
   * // Select course names that are offered in both departments A and B
   * await db.select({ courseName: depA.courseName })
   *   .from(depA)
   *   .intersect(
   *     db.select({ courseName: depB.courseName }).from(depB)
   *   );
   * // or
   * import { intersect } from 'drizzle-orm/mysql-core'
   *
   * await intersect(
   *   db.select({ courseName: depA.courseName }).from(depA),
   *   db.select({ courseName: depB.courseName }).from(depB)
   * );
   * ```
   */
  intersect = this.createSetOperator("intersect", false);
  /**
   * Adds `intersect all` set operator to the query.
   *
   * Calling this method will retain only the rows that are present in both result sets including all duplicates.
   *
   * See docs: {@link https://orm.drizzle.team/docs/set-operations#intersect-all}
   *
   * @example
   *
   * ```ts
   * // Select all products and quantities that are ordered by both regular and VIP customers
   * await db.select({
   *   productId: regularCustomerOrders.productId,
   *   quantityOrdered: regularCustomerOrders.quantityOrdered
   * })
   * .from(regularCustomerOrders)
   * .intersectAll(
   *   db.select({
   *     productId: vipCustomerOrders.productId,
   *     quantityOrdered: vipCustomerOrders.quantityOrdered
   *   })
   *   .from(vipCustomerOrders)
   * );
   * // or
   * import { intersectAll } from 'drizzle-orm/mysql-core'
   *
   * await intersectAll(
   *   db.select({
   *     productId: regularCustomerOrders.productId,
   *     quantityOrdered: regularCustomerOrders.quantityOrdered
   *   })
   *   .from(regularCustomerOrders),
   *   db.select({
   *     productId: vipCustomerOrders.productId,
   *     quantityOrdered: vipCustomerOrders.quantityOrdered
   *   })
   *   .from(vipCustomerOrders)
   * );
   * ```
   */
  intersectAll = this.createSetOperator("intersect", true);
  /**
   * Adds `except` set operator to the query.
   *
   * Calling this method will retrieve all unique rows from the left query, except for the rows that are present in the result set of the right query.
   *
   * See docs: {@link https://orm.drizzle.team/docs/set-operations#except}
   *
   * @example
   *
   * ```ts
   * // Select all courses offered in department A but not in department B
   * await db.select({ courseName: depA.courseName })
   *   .from(depA)
   *   .except(
   *     db.select({ courseName: depB.courseName }).from(depB)
   *   );
   * // or
   * import { except } from 'drizzle-orm/mysql-core'
   *
   * await except(
   *   db.select({ courseName: depA.courseName }).from(depA),
   *   db.select({ courseName: depB.courseName }).from(depB)
   * );
   * ```
   */
  except = this.createSetOperator("except", false);
  /**
   * Adds `except all` set operator to the query.
   *
   * Calling this method will retrieve all rows from the left query, except for the rows that are present in the result set of the right query.
   *
   * See docs: {@link https://orm.drizzle.team/docs/set-operations#except-all}
   *
   * @example
   *
   * ```ts
   * // Select all products that are ordered by regular customers but not by VIP customers
   * await db.select({
   *   productId: regularCustomerOrders.productId,
   *   quantityOrdered: regularCustomerOrders.quantityOrdered,
   * })
   * .from(regularCustomerOrders)
   * .exceptAll(
   *   db.select({
   *     productId: vipCustomerOrders.productId,
   *     quantityOrdered: vipCustomerOrders.quantityOrdered,
   *   })
   *   .from(vipCustomerOrders)
   * );
   * // or
   * import { exceptAll } from 'drizzle-orm/mysql-core'
   *
   * await exceptAll(
   *   db.select({
   *     productId: regularCustomerOrders.productId,
   *     quantityOrdered: regularCustomerOrders.quantityOrdered
   *   })
   *   .from(regularCustomerOrders),
   *   db.select({
   *     productId: vipCustomerOrders.productId,
   *     quantityOrdered: vipCustomerOrders.quantityOrdered
   *   })
   *   .from(vipCustomerOrders)
   * );
   * ```
   */
  exceptAll = this.createSetOperator("except", true);
  /** @internal */
  addSetOperators(setOperators) {
    this.config.setOperators.push(...setOperators);
    return this;
  }
  /**
   * Adds a `where` clause to the query.
   *
   * Calling this method will select only those rows that fulfill a specified condition.
   *
   * See docs: {@link https://orm.drizzle.team/docs/select#filtering}
   *
   * @param where the `where` clause.
   *
   * @example
   * You can use conditional operators and `sql function` to filter the rows to be selected.
   *
   * ```ts
   * // Select all cars with green color
   * await db.select().from(cars).where(eq(cars.color, 'green'));
   * // or
   * await db.select().from(cars).where(sql`${cars.color} = 'green'`)
   * ```
   *
   * You can logically combine conditional operators with `and()` and `or()` operators:
   *
   * ```ts
   * // Select all BMW cars with a green color
   * await db.select().from(cars).where(and(eq(cars.color, 'green'), eq(cars.brand, 'BMW')));
   *
   * // Select all cars with the green or blue color
   * await db.select().from(cars).where(or(eq(cars.color, 'green'), eq(cars.color, 'blue')));
   * ```
   */
  where(where) {
    if (typeof where === "function") {
      where = where(
        new Proxy(
          this.config.fields,
          new SelectionProxyHandler({ sqlAliasedBehavior: "sql", sqlBehavior: "sql" })
        )
      );
    }
    this.config.where = where;
    return this;
  }
  /**
   * Adds a `having` clause to the query.
   *
   * Calling this method will select only those rows that fulfill a specified condition. It is typically used with aggregate functions to filter the aggregated data based on a specified condition.
   *
   * See docs: {@link https://orm.drizzle.team/docs/select#aggregations}
   *
   * @param having the `having` clause.
   *
   * @example
   *
   * ```ts
   * // Select all brands with more than one car
   * await db.select({
   * 	brand: cars.brand,
   * 	count: sql<number>`cast(count(${cars.id}) as int)`,
   * })
   *   .from(cars)
   *   .groupBy(cars.brand)
   *   .having(({ count }) => gt(count, 1));
   * ```
   */
  having(having) {
    if (typeof having === "function") {
      having = having(
        new Proxy(
          this.config.fields,
          new SelectionProxyHandler({ sqlAliasedBehavior: "sql", sqlBehavior: "sql" })
        )
      );
    }
    this.config.having = having;
    return this;
  }
  groupBy(...columns) {
    if (typeof columns[0] === "function") {
      const groupBy = columns[0](
        new Proxy(
          this.config.fields,
          new SelectionProxyHandler({ sqlAliasedBehavior: "alias", sqlBehavior: "sql" })
        )
      );
      this.config.groupBy = Array.isArray(groupBy) ? groupBy : [groupBy];
    } else {
      this.config.groupBy = columns;
    }
    return this;
  }
  orderBy(...columns) {
    if (typeof columns[0] === "function") {
      const orderBy = columns[0](
        new Proxy(
          this.config.fields,
          new SelectionProxyHandler({ sqlAliasedBehavior: "alias", sqlBehavior: "sql" })
        )
      );
      const orderByArray = Array.isArray(orderBy) ? orderBy : [orderBy];
      if (this.config.setOperators.length > 0) {
        this.config.setOperators.at(-1).orderBy = orderByArray;
      } else {
        this.config.orderBy = orderByArray;
      }
    } else {
      const orderByArray = columns;
      if (this.config.setOperators.length > 0) {
        this.config.setOperators.at(-1).orderBy = orderByArray;
      } else {
        this.config.orderBy = orderByArray;
      }
    }
    return this;
  }
  /**
   * Adds a `limit` clause to the query.
   *
   * Calling this method will set the maximum number of rows that will be returned by this query.
   *
   * See docs: {@link https://orm.drizzle.team/docs/select#limit--offset}
   *
   * @param limit the `limit` clause.
   *
   * @example
   *
   * ```ts
   * // Get the first 10 people from this query.
   * await db.select().from(people).limit(10);
   * ```
   */
  limit(limit) {
    if (this.config.setOperators.length > 0) {
      this.config.setOperators.at(-1).limit = limit;
    } else {
      this.config.limit = limit;
    }
    return this;
  }
  /**
   * Adds an `offset` clause to the query.
   *
   * Calling this method will skip a number of rows when returning results from this query.
   *
   * See docs: {@link https://orm.drizzle.team/docs/select#limit--offset}
   *
   * @param offset the `offset` clause.
   *
   * @example
   *
   * ```ts
   * // Get the 10th-20th people from this query.
   * await db.select().from(people).offset(10).limit(10);
   * ```
   */
  offset(offset) {
    if (this.config.setOperators.length > 0) {
      this.config.setOperators.at(-1).offset = offset;
    } else {
      this.config.offset = offset;
    }
    return this;
  }
  /**
   * Adds a `for` clause to the query.
   *
   * Calling this method will specify a lock strength for this query that controls how strictly it acquires exclusive access to the rows being queried.
   *
   * See docs: {@link https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html}
   *
   * @param strength the lock strength.
   * @param config the lock configuration.
   */
  for(strength, config = {}) {
    this.config.lockingClause = { strength, config };
    return this;
  }
  /** @internal */
  getSQL() {
    return this.dialect.buildSelectQuery(this.config);
  }
  toSQL() {
    const { typings: _typings, ...rest } = this.dialect.sqlToQuery(this.getSQL());
    return rest;
  }
  as(alias) {
    const usedTables = [];
    usedTables.push(...extractUsedTable(this.config.table));
    if (this.config.joins) {
      for (const it of this.config.joins) usedTables.push(...extractUsedTable(it.table));
    }
    return new Proxy(
      new Subquery(this.getSQL(), this.config.fields, alias, false, [...new Set(usedTables)]),
      new SelectionProxyHandler({ alias, sqlAliasedBehavior: "alias", sqlBehavior: "error" })
    );
  }
  /** @internal */
  getSelectedFields() {
    return new Proxy(
      this.config.fields,
      new SelectionProxyHandler({ alias: this.tableName, sqlAliasedBehavior: "alias", sqlBehavior: "error" })
    );
  }
  $dynamic() {
    return this;
  }
  $withCache(config) {
    this.cacheConfig = config === void 0 ? { config: {}, enable: true, autoInvalidate: true } : config === false ? { enable: false } : { enable: true, autoInvalidate: true, ...config };
    return this;
  }
}
class MySqlSelectBase extends MySqlSelectQueryBuilderBase {
  static [entityKind] = "MySqlSelect";
  prepare() {
    if (!this.session) {
      throw new Error("Cannot execute a query on a query builder. Please use a database instance instead.");
    }
    const fieldsList = orderSelectedFields(this.config.fields);
    const query = this.session.prepareQuery(this.dialect.sqlToQuery(this.getSQL()), fieldsList, void 0, void 0, void 0, {
      type: "select",
      tables: [...this.usedTables]
    }, this.cacheConfig);
    query.joinsNotNullableMap = this.joinsNotNullableMap;
    return query;
  }
  execute = (placeholderValues) => {
    return this.prepare().execute(placeholderValues);
  };
  createIterator = () => {
    const self = this;
    return async function* (placeholderValues) {
      yield* self.prepare().iterator(placeholderValues);
    };
  };
  iterator = this.createIterator();
}
applyMixins(MySqlSelectBase, [QueryPromise]);
function createSetOperator(type, isAll) {
  return (leftSelect, rightSelect, ...restSelects) => {
    const setOperators = [rightSelect, ...restSelects].map((select) => ({
      type,
      isAll,
      rightSelect: select
    }));
    for (const setOperator of setOperators) {
      if (!haveSameKeys(leftSelect.getSelectedFields(), setOperator.rightSelect.getSelectedFields())) {
        throw new Error(
          "Set operator error (union / intersect / except): selected fields are not the same or are in a different order"
        );
      }
    }
    return leftSelect.addSetOperators(setOperators);
  };
}
const getMySqlSetOperators = () => ({
  union,
  unionAll,
  intersect,
  intersectAll,
  except,
  exceptAll
});
const union = createSetOperator("union", false);
const unionAll = createSetOperator("union", true);
const intersect = createSetOperator("intersect", false);
const intersectAll = createSetOperator("intersect", true);
const except = createSetOperator("except", false);
const exceptAll = createSetOperator("except", true);
export {
  MySqlSelectBase,
  MySqlSelectBuilder,
  MySqlSelectQueryBuilderBase,
  except,
  exceptAll,
  intersect,
  intersectAll,
  union,
  unionAll
};
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