Function createHashPartitions

packages/sql/src/schema/partitioning.ts:318–335

(
  tableName: string,
  tableSchema: string | undefined,
  partitions: number | readonly string[],
)

const createPartitionBound = (value: string): string => normalizePartitionBound(value);

const createHashPartitions = (
  tableName: string,
  tableSchema: string | undefined,
  partitions: number | readonly string[],
): TablePartition[] => {
  const count = typeof partitions === 'number' ? partitions : partitions.length;

  return Array.from({ length: count }, (_, remainder) => {
    const bound = normalizePartitionBound(`with (modulus ${count}, remainder ${remainder})`);

    if (typeof partitions === 'number') {
      return { name: `${tableName}_${remainder}`, schema: tableSchema, bound };
    }

    const { name, schema } = splitPartitionName(partitions[remainder]);
    return { name, schema: schema ?? tableSchema, bound };
  });
};

const createExplicitPartitions = (
  tableName: string,