为啥我的 bigquery sql 没有返回任何结果？

Posted 2023-03-23

【中文标题】为啥我的 bigquery sql 没有返回任何结果？

【英文标题】：Why my bigquery sql is not returning any result?为什么我的 bigquery sql 没有返回任何结果？

【发布时间】：2019-07-29 01:20:31

【问题描述】：

我在 bigquery 中查询公共数据集。 sql 有效且 bigquery UI 显示消息“此查询在运行时将处理 15.9 MB”。但我仍然收到了附加的空白输出屏幕截图BigQuery result。

请在下面找到项目的详细信息。 项目 - bigquery-public-data 数据集 - google_analytics_sample 表 - ga_sessions_20170801

我正在使用 SELECT 语句来获取所有列的结果。

    SELECT visitorId,
visitNumber,
visitId,
visitStartTime,
date,
totals.visits,
totals.hits,
totals.pageviews,
totals.timeOnSite,
totals.bounces,
totals.transactions,
totals.transactionRevenue,
totals.newVisits,
totals.screenviews,
totals.uniqueScreenviews,
totals.timeOnScreen,
totals.totalTransactionRevenue,
totals.sessionQualityDim,
trafficSource.referralPath,
trafficSource.campaign,
trafficSource.source,
trafficSource.medium,
trafficSource.keyword,
trafficSource.adContent,
trafficSource.adwordsClickInfo.campaignId,
trafficSource.adwordsClickInfo.adGroupId,
trafficSource.adwordsClickInfo.creativeId,
trafficSource.adwordsClickInfo.criteriaId,
trafficSource.adwordsClickInfo.page,
trafficSource.adwordsClickInfo.slot,
trafficSource.adwordsClickInfo.criteriaParameters,
trafficSource.adwordsClickInfo.gclId,
trafficSource.adwordsClickInfo.customerId,
trafficSource.adwordsClickInfo.adNetworkType,
trafficSource.adwordsClickInfo.targetingCriteria.boomUserlistId,
trafficSource.adwordsClickInfo.isVideoAd,
trafficSource.isTrueDirect,
trafficSource.campaignCode,
device.browser,
device.browserVersion,
device.browserSize,
device.operatingSystem,
device.operatingSystemVersion,
device.isMobile,
device.mobileDeviceBranding,
device.mobileDeviceModel,
device.mobileInputSelector,
device.mobileDeviceInfo,
device.mobileDeviceMarketingName,
device.flashVersion,
device.javaEnabled,
device.language,
device.screenColors,
device.screenResolution,
device.deviceCategory,
geoNetwork.continent,
geoNetwork.subContinent,
geoNetwork.country,
geoNetwork.region,
geoNetwork.metro,
geoNetwork.city,
geoNetwork.cityId,
geoNetwork.networkDomain,
geoNetwork.latitude,
geoNetwork.longitude,
geoNetwork.networkLocation,
cd.index,
cd.value,
h.hitNumber,
h.time,
h.hour,
h.minute,
h.isSecure,
h.isInteraction,
h.isEntrance,
h.isExit,
h.referer,
h.page.pagePath,
h.page.hostname,
h.page.pageTitle,
h.page.searchKeyword,
h.page.searchCategory,
h.page.pagePathLevel1,
h.page.pagePathLevel2,
h.page.pagePathLevel3,
h.page.pagePathLevel4,
h.transaction.transactionId,
h.transaction.transactionRevenue as tRevenue,
h.transaction.transactionTax,
h.transaction.transactionShipping,
h.transaction.affiliation,
h.transaction.currencyCode,
h.transaction.localTransactionRevenue,
h.transaction.localTransactionTax,
h.transaction.localTransactionShipping,
h.transaction.transactionCoupon,
h.item.transactionId as tId,
h.item.productName,
h.item.productCategory,
h.item.productSku,
h.item.itemQuantity,
h.item.itemRevenue,
h.item.currencyCode as cCode,
h.item.localItemRevenue,
h.contentInfo.contentDescription,
h.appInfo.name,
h.appInfo.version,
h.appInfo.id,
h.appInfo.installerId,
h.appInfo.appInstallerId,
h.appInfo.appName,
h.appInfo.appVersion,
h.appInfo.appId,
h.appInfo.screenName,
h.appInfo.landingScreenName,
h.appInfo.exitScreenName,
h.appInfo.screenDepth,
h.exceptionInfo.description,
h.exceptionInfo.isFatal,
h.exceptionInfo.exceptions,
h.exceptionInfo.fatalExceptions,
h.eventInfo.eventCategory,
h.eventInfo.eventAction,
h.eventInfo.eventLabel,
h.eventInfo.eventValue,
hp.productSKU as pSKU,
hp.v2ProductName,
hp.v2ProductCategory,
hp.productVariant,
hp.productBrand,
hp.productRevenue,
hp.localProductRevenue,
hp.productPrice,
hp.localProductPrice,
hp.productQuantity,
hp.productRefundAmount,
hp.localProductRefundAmount,
hp.isImpression,
hp.isClick,
hpc.index as hpcIndex,
hpc.value as hpcValue,
hpCustomMetrics.index as cusomMetricsIndex,
hpCustomMetrics.value as cusomMetricsValue,
hp.productListName,
hp.productListPosition,
hp.productCouponCode,
hpromotion.promoId, 
hpromotion.promoName,
hpromotion.promoCreative,
hpromotion.promoPosition,
h.promotionActionInfo.promoIsView,
h.promotionActionInfo.promoIsClick,
h.refund.refundAmount,
h.refund.localRefundAmount,
h.eCommerceAction.action_type,
h.eCommerceAction.step,
h.eCommerceAction.option,
hExperiment.experimentId,
hExperiment.experimentVariant,
h.publisher.dfpClicks,
h.publisher.dfpImpressions,
h.publisher.dfpMatchedQueries,
h.publisher.dfpMeasurableImpressions,
h.publisher.dfpQueries,
h.publisher.dfpRevenueCpm,
h.publisher.dfpRevenueCpc,
h.publisher.dfpViewableImpressions,
h.publisher.dfpPagesViewed,
h.publisher.adsenseBackfillDfpClicks,
h.publisher.adsenseBackfillDfpImpressions,
h.publisher.adsenseBackfillDfpMatchedQueries,
h.publisher.adsenseBackfillDfpMeasurableImpressions,
h.publisher.adsenseBackfillDfpQueries,
h.publisher.adsenseBackfillDfpRevenueCpm,
h.publisher.adsenseBackfillDfpRevenueCpc,
h.publisher.adsenseBackfillDfpViewableImpressions,
h.publisher.adsenseBackfillDfpPagesViewed,
h.publisher.adxBackfillDfpClicks,
h.publisher.adxBackfillDfpImpressions,
h.publisher.adxBackfillDfpMatchedQueries,
h.publisher.adxBackfillDfpMeasurableImpressions,
h.publisher.adxBackfillDfpQueries,
h.publisher.adxBackfillDfpRevenueCpm,
h.publisher.adxBackfillDfpRevenueCpc,
h.publisher.adxBackfillDfpViewableImpressions,
h.publisher.adxBackfillDfpPagesViewed,
h.publisher.adxClicks,
h.publisher.adxImpressions,
h.publisher.adxMatchedQueries,
h.publisher.adxMeasurableImpressions,
h.publisher.adxQueries,
h.publisher.adxRevenue,
h.publisher.adxViewableImpressions,
h.publisher.adxPagesViewed,
h.publisher.adsViewed,
h.publisher.adsUnitsViewed,
h.publisher.adsUnitsMatched,
h.publisher.viewableAdsViewed,
h.publisher.measurableAdsViewed,
h.publisher.adsPagesViewed,
h.publisher.adsClicked,
h.publisher.adsRevenue,
h.publisher.dfpAdGroup,
h.publisher.dfpAdUnits,
h.publisher.dfpNetworkId,
hcustomVariables.index as hcustomVariableIndex,
hcustomVariables.customVarName,
hcustomVariables.customVarValue,
hcustomDimensions.index as customDimensionsIndex,
hcustomDimensions.value as customDimensionsvalue,
hcustomMetrics.index as hcustoMetricsIndex,
hcustomMetrics.value as hcustomMetricsValue,
h.type,
h.social.socialInteractionNetwork,
h.social.socialInteractionAction,
h.social.socialInteractions,
h.social.socialInteractionTarget,
h.social.socialNetwork,
h.social.uniqueSocialInteractions,
h.social.hasSocialSourceReferral,
h.social.socialInteractionNetworkAction,
h.latencyTracking.pageLoadSample,
h.latencyTracking.pageLoadTime,
h.latencyTracking.pageDownloadTime,
h.latencyTracking.redirectionTime,
h.latencyTracking.speedMetricsSample,
h.latencyTracking.domainLookupTime,
h.latencyTracking.serverConnectionTime,
h.latencyTracking.serverResponseTime,
h.latencyTracking.domLatencyMetricsSample,
h.latencyTracking.domInteractiveTime,
h.latencyTracking.domContentLoadedTime,
h.latencyTracking.userTimingValue,
h.latencyTracking.userTimingSample,
h.latencyTracking.userTimingVariable,
h.latencyTracking.userTimingCategory,
h.latencyTracking.userTimingLabel,
sourcePropertyInfo.sourcePropertyDisplayName,   
sourcePropertyInfo.sourcePropertyTrackingId,
h.contentGroup.contentGroup1,
h.contentGroup.contentGroup2,
h.contentGroup.contentGroup3,
h.contentGroup.contentGroup4,
h.contentGroup.contentGroup5,
h.contentGroup.previousContentGroup1,
h.contentGroup.previousContentGroup2,
h.contentGroup.previousContentGroup3,
h.contentGroup.previousContentGroup4,
h.contentGroup.previousContentGroup5,
h.contentGroup.contentGroupUniqueViews1,
h.contentGroup.contentGroupUniqueViews2,
h.contentGroup.contentGroupUniqueViews3,
h.contentGroup.contentGroupUniqueViews4,
h.contentGroup.contentGroupUniqueViews5,
h.dataSource,
hpublisher.dfpClicks as hpublisherDfpclicks,
hpublisher.dfpImpressions as hpublisherDfpImpressions,
hpublisher.dfpMatchedQueries as hpublisherDfpMatchedQueries,
hpublisher.dfpMeasurableImpressions as hpublisherDfpMeasurableImpressions,
hpublisher.dfpQueries as hpublisherDfpQueries,
hpublisher.dfpRevenueCpm as hpublisherDfpRevenueCpm,
hpublisher.dfpRevenueCpc as hpublisherDfpRevenueCpc,
hpublisher.dfpViewableImpressions as hpublisherDfpViewableImpressions,
hpublisher.dfpPagesViewed as hpublisherDfpPagesViewed,
hpublisher.adsenseBackfillDfpClicks as hpublisherAdsenseBackfillDfpClicks,
hpublisher.adsenseBackfillDfpImpressions as hpublisherAdsenseBackfillDfpImpressions,
hpublisher.adsenseBackfillDfpMatchedQueries as hpublisherAdsenseBackfillDfpMatchedQueries,
hpublisher.adsenseBackfillDfpMeasurableImpressions as hpublisherAdsenseBackfillDfpMeasurableImpressions,
hpublisher.adsenseBackfillDfpQueries as hpublisherAdsenseBackfillDfpQueries,
hpublisher.adsenseBackfillDfpRevenueCpm as hpublisherAdsenseBackfillDfpRevenueCpm,
hpublisher.adsenseBackfillDfpRevenueCpc as hpublisherAdsenseBackfillDfpRevenueCpc,
hpublisher.adsenseBackfillDfpViewableImpressions as hpublisherAdsenseBackfillDfpViewableImpressions,
hpublisher.adsenseBackfillDfpPagesViewed as hpublisherAdsenseBackfillDfpPagesViewed,
hpublisher.adxBackfillDfpClicks as hpublisherAdxBackfillDfpClicks,
hpublisher.adxBackfillDfpImpressions as hpublisherAdxBackfillDfpImpressions,
hpublisher.adxBackfillDfpMatchedQueries as hpublisherAdxBackfillDfpMatchedQueries,
hpublisher.adxBackfillDfpMeasurableImpressions as hpublisherAdxBackfillDfpMeasurableImpressions,
hpublisher.adxBackfillDfpQueries as hpublisherAdxBackfillDfpQueries,
hpublisher.adxBackfillDfpRevenueCpm as hpublisherAdxBackfillDfpRevenueCpm,
hpublisher.adxBackfillDfpRevenueCpc as hpublisherAdxBackfillDfpRevenueCpc,
hpublisher.adxBackfillDfpViewableImpressions as hpublisherAdxBackfillDfpViewableImpressions,
hpublisher.adxBackfillDfpPagesViewed as hpublisherAdxBackfillDfpPagesViewed,
hpublisher.adxClicks as hpublisherAdxClicks,
hpublisher.adxImpressions as hpublisherAdxImpressions,
hpublisher.adxMatchedQueries as hpublisherAdxMatchedQueries,
hpublisher.adxMeasurableImpressions as hpublisherAdxMeasurableImpressions,
hpublisher.adxQueries as hpublisherAdxQueries,
hpublisher.adxRevenue as hpublisherAdxRevenue,
hpublisher.adxViewableImpressions as hpublisherAdxViewableImpressions,
hpublisher.adxPagesViewed as hpublisherAdxPagesViewed,
hpublisher.adsViewed as hpublisherAdsViewed,
hpublisher.adsUnitsViewed as hpublisherAdsUnitsViewed,
hpublisher.adsUnitsMatched as hpublisherAdsUnitsMatched,
hpublisher.viewableAdsViewed as hpublisherViewableAdsViewed,
hpublisher.measurableAdsViewed as hpublisherMeasurableAdsViewed,
hpublisher.adsPagesViewed as hpublisherAdsPagesViewed,
hpublisher.adsClicked as hpublisherAdsClicked,
hpublisher.adsRevenue as hpublisherAdsRevenue,
hpublisher.dfpAdGroup as hpublisherDfpAdGroup,
hpublisher.dfpAdUnits as hpublisherDfpAdUnits,
hpublisher.dfpNetworkId as hpublisherDfpNetworkId,
fullVisitorId,
userId,
clientId,
channelGrouping,
socialEngagementType


FROM `bigquery-public-data.google_analytics_sample.ga_sessions_20170801`, 
UNNEST(customDimensions) as cd,
UNNEST(hits) as h,
UNNEST(h.product) as hp,
UNNEST(hp.customDimensions) as hpc,
UNNEST(hp.customMetrics) as hpCustomMetrics,
UNNEST(h.promotion) as hpromotion,
UNNEST(h.experiment) as hExperiment,
UNNEST(h.customVariables) as hcustomVariables,
UNNEST(h.customDimensions) as hcustomDimensions,
UNNEST(h.customMetrics) as hcustomMetrics,
UNNEST(h.publisher_infos) as hpublisher


LIMIT 10

【问题讨论】：

你能分享你使用的查询吗？

是因为 UNNEST(hp.customDimensions) 没有任何内容作为 hpc，UNNEST(hp.customMetrics) 没有作为 hpCustomMetrics，UNNEST(h.promotion) 没有作为 hpromotion？

@Bobbylank 很好，但是当我对给定表的所有列使用上面的查询时，我也得到空白输出，并且当我不涉及上面的列和其中具有值的列时然后我就可以看到输出了

【参考方案1】：

确实你有@Bobbylank 提到的空值

这是一个如何解决此问题的 SQL 示例（您需要将内部 ARRAY 移动到 SELECT 部分）

SELECT 
h.promotionActionInfo.promoIsView,
hp.productSKU as pSKU,
hp.customDimensions,
(SELECT hpc.index
   FROM UNNEST(hp.customDimensions) as hpc)
FROM `bigquery-public-data.google_analytics_sample.ga_sessions_20170801`, 
UNNEST(hits) as h,
UNNEST(h.product) as hp
LIMIT 10

【讨论】：

我正在查询“ga_sessions_20170801”表的每一列值，并且在 UNNESTING 数组和 RECORD 列之后计数多达 306 列。它给我的结果高达 120 列级别，但我无法获得所有列的值。

按照@SANN3 的要求，请提供您正在使用的完整SELECT 声明，并在您的问题中更详细地描述什么不适合您

我已附上 sql 查询示例。我无法附上完整的 sql，因为它包含 306 列，很难阅读。

如果您无法发布完整的查询，任何人都很难提供比 @TamirKlein 更多的帮助

@TamirKlein，我对你的回答投了赞成票。我没有 15 或以上的声望。所以我的投票不会公开可见。可能我需要更多关于 UNNEST、array、struct 的信息，只有我才能更好地理解。无论如何，谢谢你的帮助。

【参考方案2】：

如下更改查询的最后一部分应该可以解决问题。

当被 UNNESTed 的列为空时，LEFT JOIN 可防止结果集为空。

FROM `bigquery-public-data.google_analytics_sample.ga_sessions_20170801` 
LEFT JOIN UNNEST(customDimensions) as cd
LEFT JOIN UNNEST(hits) as h
LEFT JOIN UNNEST(h.product) as hp
LEFT JOIN UNNEST(hp.customDimensions) as hpc
LEFT JOIN UNNEST(hp.customMetrics) as hpCustomMetrics
LEFT JOIN UNNEST(h.promotion) as hpromotion
LEFT JOIN UNNEST(h.experiment) as hExperiment
LEFT JOIN UNNEST(h.customVariables) as hcustomVariables
LEFT JOIN UNNEST(h.customDimensions) as hcustomDimensions
LEFT JOIN UNNEST(h.customMetrics) as hcustomMetrics
LEFT JOIN UNNEST(h.publisher_infos) as hpublisher