Function getFirstFromAlias

packages/db/src/query/compiler/joins.ts:573–583

(query: QueryIR)

}

function getFirstFromAlias(query: QueryIR): string | undefined {
  if (query.from.type === `unionFrom`) {
    return query.from.sources[0]?.alias
  }

  if (query.from.type === `unionAll`) {
    return undefined
  }

  return query.from.alias
}

/**
 * Processes the results of a join operation