Unsupported aggregation. CREATE MATERIALIZED VIEW V_TMP_PONYLIST BUILD IMMEDIATE REFRESH COMPLETE ON COMMIT AS SELECT. Unsupported aggregation

 
 CREATE MATERIALIZED VIEW V_TMP_PONYLIST BUILD IMMEDIATE REFRESH COMPLETE ON COMMIT AS SELECTUnsupported aggregation  Characteristics such as optical and catalytic activity may be lost if the dispersion of unsupported Ni NPs is not adequately modulated

×Sorry to interrupt. In the Name field, enter OldPasswordAllowedPeriod, and then press the Enter key. Hi. 9 KB. g. Golang aggregation group by multiple values with MongoDB. This means you can now just count, instead of count distinct, which is far easier to compute. i. Wherever possible, the value of calculated is used, then sum where necessary, followed by unsupported. Currently, using the transactional side, the retention rate calc is (SUM (Headcount) from Employee side - SUM. Unsupported aggregation: The following aggregations cannot be inverted: Some aggregation types do not support data entry. The one drawback is that DB2 blending does not support "non-additive aggregates" like COUNTD() and MEDIAN(). I created a machine learning job which uses two metrics as detectors defined as aggregations of fields in my index and everything was working great (Job_0, Datafeed_0 code below). Someone in the Community told me the following: "MAX isn't supported in. filter (name). The number is a factor by which the grade value will be multiplied before it is added to the sum of all grades, but the item itself will not be. As described by Moodle HQ, this method is "An old, now unsupported, aggregation strategy provided here only for backward compatibility with old activities. An expression has a finer level of detail than the view when it references a superset of the dimensions in the. WHERE accounts. clients. Non-additive aggregates are aggregate functions that produce results that cannot be aggregated along a dimension. Local variable usage in aggregations - A local variable cannot be used in an aggregation function, if the variable is declared outside of the aggregation function. bucket. x, a few reports in SRM at times might show the following error "Unsupported Report Aggregation". Teams. Trying a different aggregation on DAY([Endtimestamp])? Trying to COUNTD a different field? This won't fix the problem but will help pinpoint which part of the expression Tableau objects to. Related Conversations. Define spend budgets and alert on budget overruns. Currency measure vs. Expand Post. I created a machine learning job which uses two metrics as detectors defined as aggregations of fields in my index and everything was working great (Job_0, Datafeed_0 code below). The PipelineDefinitionBuilder class provides a type-safe interface for defining an aggregation pipeline. Add the ’ [‘ open-square-brackets to the beginning and ‘]’ close-square-brackets to the end. Cannot blend the secondary data source because one or more fields use an unsupported aggregation" when Data Blending Hello Everyone, I am using one data source which is a LIVE connection and I have duplicated same data source , the reason behind duplication is i want to have total of category which will be constant and it will not. Next, create a table calc using the [Start KM] to calculate the total KMs:LINQ allows you to construct queries against strongly typed collections of objects by using language keywords and operators. You'll need multiple requests to paginate over the composite aggregation but the retrieval of each page is optimized (the composite aggregation doesn't need to visit. This aggregation is unsupported: Quarter . 01 MB) PDF - This Chapter (0. throw new RuntimeException("Unsupported aggregation type [" + agg. Data blending has some limitations regarding non-additive aggregates such as COUNTD, MEDIAN, and RAWSQLAGG. unsupported. really need to see your twbx file to be of further help. Characteristics such as optical and catalytic activity may be lost if the dispersion of unsupported Ni NPs is not adequately modulated. As tableau automatically aggregates its value using predefined aggregate functions. Simplify ETL using Hevo’s No-code Data Pipeline. Any help would be appreciated! #1 COUNTD([ID]) / TOTAL(COUNTD([ID]))In the attached simple excel example I need to count that I have 4 accounts (Account A, B, C, and D) based on the Account Name field. The following commands do not require automatic encryption. We have a calculated filed where an aggregation (COUNTD) is done on a filed of secondary data source. The map-reduce operation is composed of many tasks, including reads from the input collection, executions of the map function, executions of the reduce function, writes to a temporary collection during processing, and writes to the output collection. I would like to visualize number of distinct hardware. Cannot Blend Secondary Data Source - Unsupported Aggregation. There's a set of views/calcs that show a metric, (metric C) counting distinct number of accounts contacted per person per week (e. Upvote Upvoted. account_id But while totals1 is still visible inside the subquery, it is not allowed to use it in a FROM clause. MovieId, STRING_AGG(FullName) AS Actors FROM `<snip>. I am trying to show an empty column on the X axis even when the aggregation value (the row) is 0. The following aggregation operation on the orders collection converts the order_date to date before sorting by the date value: // Define stage to add convertedDate field with the converted order_date valueLocal variable usage in aggregations - A local variable cannot be used in an aggregation function if the variable is declared outside of the aggregation function. Jehutywong July 16, 2020,. An old, now unsupported aggregation strategy provided here only for backward compatibility with old activities. The workaround for this is that if you have to use one of the non-additive. © 2003-2023 Tableau Software, LLC, a Salesforce Company. Expand Post. Materialized is an absolute requirement because of performance reasons, and it is required, that the view updates itself on commit. Blend ID (transaction datasource) =. This aggregation is unsupported: Second . When you try to do that, Tableau generates the "Cannot blend the secondary data source because one or more fields use an unsupported aggregation" error, turns the offending pill red, and grays out the view. I thought the problems with Median and CountD being unsupported by DB2 blending were over as of version 9 (i am using. UNSUPPORTED_TABLE_ARGUMENT. When trying to use COUNTD() it gives this error: cannot blend secondary data source because one or more fields use an unsupported aggregation when hovering over the Measures because it is now red. (Ditto the FIXED countD. I am trying to use the below formula instead of countd function because my data comes from Impala. Trending. An aggregate_metric_double field is an object containing one or more of the following metric sub-fields: min, max, sum, and value_count. See Array Indexes are Unsupported. The strange thing is running the query (the one that the Java API gives on a to string) through the REST endpoint works fine. For example, you would not be able to use a measure with the expression <<root. It is now possible in Amazon QuickSight. So two data sources, blended, trying to do a count distinct on product or whatever in the secondary source. apply. Wrong aggregation type for query. 2. There was a problem hiding this comment. The version I am working with 10. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. If this posts assists in resolving the question, please mark it helpful or as the 'correct answer' if it resolves the. 1. For more information on exception aggregations, refer to Disaggregation of Values During Data Entry. If you have selected the modeling properties Activate Data and Write Change Log, you can choose from the following. Drilldown query with no available dimensionAWS DocumentDB with C# MongoDB driver, unsupported efficient pagination. This aggregation provides a way to stream all buckets of a specific aggregation, similar to what scroll does for documents. 0 or later compatible drivers configured for automatic encryption. See the Description column for details. blending takes place in step 6 of the Order of Operation after all the context and dimension filters have been applied - you will not be able to filter across the data sets after that point - Teams. PDF - Complete Book (10. Ken Flerlage (Member) 5 years ago. Sum, average, and median are common aggregations; for a complete list, see List of Predefined Aggregations in Tableau. The . Currently, we have 2 different data sources. Dashed and solid arrows denote the low-level and high-level aggregation, respectively. ElasticsearchException: [es/search] failed: [x_content_parse_exception] [1:44] [composite] unknown field [name] Here is my setup. The string value must be a base 10 integer (e. If I have 1 record in EKKO, 5 line items in EKPO, and 20 Scheduled lines in EKET, the resulting output will contain 20 lines. Try one of the following options, as appropriate for your workbook: It may be possible to cross database join instead of blending. I'm using a cube data source as my primary and am attempting to blend with an Excel sheet. Aggregation is computed as an average of the values in the result set for this object. 1. Having said this and following the discussion comments being posted by @Timo Rietveld and @Martin Weitzmann I assume that planning to visualize data in Google Data Studio and performing some aggregation functions it would probably required to flatten the data into the simple format using UNNEST operator achieving the best result. That is why I believe TOTAL (SUM (X)) = WINDOW_SUM (X) while WINDOW is WINDOW_SUM (SUM (X)) I mean fro mtheoretical point of view, I. For more information on exception aggregations, refer to Disaggregation of Values During Data Entry. ×Sorry to interrupt. LOD expressions are taken from a secondary source “Cannot blend the secondary data source because one or more fields use an unsupported aggregation. Right click the vDS, then Settings > Export configuration to back up the existing configuration of the vDS. 0 APIs. Hi, date_histogram is not support as aggregation in transform yet but only as part of group_by. Many Tableau developers find data blending frustrating. To learn more about the Document type, see Documents. NoDays >> * <<root. For example, Sales becomes SUM (Sales). Upvote Upvoted Remove Upvote Reply. How to rewrite my calculation to fix the error: cannot blend the secondary data source because one or more fields are use and unsupported aggregation I have multi data sources blending and can not bring my calculated field into the main source. Name: Distinct Count. What I have understood. Using Tableau; Upvote; Answer. NET/C# Driver automatically translates LINQ queries into aggregation operations. CallTime Avg (internal)>> because CallTime Avg (internal) is interpreted as being. Currently windowed aggregations cannot be combined in the same SELECT statement with GROUP BY, HAVING, or any. The unsupported aggregation happens when your aggregate requires row-level visibility to the secondary data source. ) I need to revisit my understanding of the limitations here!data from the second source comes over as an aggregate - look into what the aggregation is on and how does that relate to what you have in the primary data base . I couldn’t get anything to work. When you run certain metric aggregations on an aggregate_metric_double field, the aggregation uses the related sub-field’s values. Learn more about TeamsNote: Link Aggregation Control Protocol (LACP) can only be configured through the vSphere Web Client. This aggregation is unsupported: Minute . When you add a measure to the view, Tableau automatically aggregates its values. _types. Right-click OldPasswordAllowedPeriod, and then select Modify . Applications using explicit Queryable Encryption may use this page. If your are trying to find the minimum of your [Date] field by your [Author] field, you might want to construct a LOD calculation to find first date, by author like so: //Creates calculated field for [First Date by author] {FIXED [Author] : MIN ( [Date])} You also have asked about 'double aggregating'. How should I got about with this? Thank you. We are allowed to reference the derived table totals1 in the WHERE clause, as you already do but here we are actually referencing a column, not the table as a whole:. Hot Network Questions Resolution. Data blending has some limitations regarding non-additive aggregates such as COUNTD, MEDIAN, and RAWSQLAGG. Hi @Ajay Velupula (Member) , I think Mahfooj's suggestion makes sense, if you have a common field between the two, in theory it sounds like a join should work and would give a better result than blending. . Stores pre-aggregated numeric values for metric aggregations. 0 and later. E make table 2 the primary and table. Referencing field name from datafeed aggregation to use as a detector in an ML job. But if i use this "aggs" in transform api "aggregations". Steps to Implement Tableau Aggregation. Required parameters: type: budget; threshold: <amount> – cost threshold in configured currency units aggregation: <agg-parameter> – configurable, accepts all aggregations supported by the aggregated cost model API filter: <value> – configurable, accepts a single filter value. The following rules apply in determining the number and size of employers, as required by the MSP provisions for the aged and disabled: ( a ) All employers that are treated as a single employer under subsection (a) or (b) of section 52 of the Internal Revenue Code (IRC) of 1986 ( 26 U. Supported Update Operators. Local variables declared inside curly braces are allowed. The manual process is: Read the data into a text editor. Any change done to the system defined settings like "ID, Description, Account Type, Hierarchy, Unit & Currencies, Aggregation Type, Exception Aggregation Type, Scale, Decimal Places, Calculate On, Hide" will have impact across all the. ×Sorry to interrupt. Norbert, I'm baffled. Thanks for the suggestion. For example, the calculation: IF [Row ID] = 1 THEN SUM( [Sales] ) END could become: SUM(IF [Row ID] = 1 THEN [Sales] END ) Option 4 (Use Level of Detail to De-aggregate a Field) Use a Level of Detail (LOD) Expression to make an aggregation non-aggregate. When you try to do that, Tableau generates the "Cannot blend the secondary data source because one or more fields use an unsupported aggregation" error, turns the offending pill red, and grays out the view. Instead OVER aggregates produce an aggregated value for every input row. Elasticsearch Version 8. This page documents the specific commands, query operators, update operators, aggregation stages, and aggregation expressions supported by MongoDB version 6. +100. General Information. Expand Post. Unsupported aggregation: The following aggregations cannot be inverted: <aggregations>When trying to use COUNTD() it gives this error: cannot blend secondary data source because one or more fields use an unsupported aggregation when hovering over the Measures because it is now red. " Environment Tableau Desktop Cube Blend Resolution Verify if one of the measures coming from the cube data source has a default aggregation different than SUM, MIN, MAX, COUNT. Amazon DocumentDB is compatible with the MongoDB 3. Last week I’d promised to explain why the solution for identifying whether All items in a Tableau Quick Filter were selected wouldn’t work under certain circumstances in Tableau version 8, here it is, and along the way I’ll explain why COUNTD(Customer Name) could be red and the “Cannot blend the secondary data source because one or more. The problem is that calculation on CDS views by default are done at records level and aggregated, hence my idea was to use the @DefaultAggregation: #FORMULA annotation to get the desire result. The query planner uses a query rewrite method called subquery decorrelation to optimize several patterns of correlated subqueries for execution in an MPP environment. NoDays >> * <<root. I've read through the various posts on here, plus the general troubleshooting posts on the Tableau page on blending data, but can't find a solution. To achieve this you need to add Calculated Field to an Analysis ( as described here ). this is the sample of getUser function public async getUser(aggregate: o. Hevo offers a fully managed. One small workaround which you can do is: 1) Create a calculation as {Max([Date])} 2) Create a parameter as follows:data from the second source comes over as an aggregate - look into what the aggregation is on and how does that relate to what you have in the primary data base . I'm trying to create a frequency distribution as a percent of total for individual products in a single category on one chart, then dual axis a second chart with the frequency distribution of the category for comparison purposes. This didn't work alas, "cannot blend secondary data source because one or more fields use an unsupported aggregation" I am using a filter from a different datasource to filter by region . § 411. ) If only one of the tables requires row level information, consider making that the primary data source in the blend (I. I am wondering if there is a better way now. Loading. Assuming Sales is configured to use Count aggregation: Query. i will try to build some moke up data in excel and reproduce the same but before that could you please explain me in detail what calculation i need to perform in secondary source. My goal is to create a MONTHLY count of applications by ACADEMIC YEAR, SCHOOL CODE, and GRADE. For more information on exception aggregations, refer to Disaggregation of Values During Data Entry. ” Group expressions: Expressions that partition the data into categories shown in a data visualization, like “by Region” or “by Sales. Median of grades: The middle grade (or the mean of the two middle grades) when grades are arranged in order of size. In first calculation , aggregation should be applied on Measure(Numeric) Value . One of the ways I have fixed issues like this in the past is to add the filter I need as a data source filter on the secondary data source, rather than as a quick filter. I've created the first chart with no problem, but I. Hi Chris. Cannot blend the secondary data source because one or more fields use an unsupported aggregation can some one has faced this type of issue before or any idea please share. 51327 - Design Assistant for Vivado Synthesis - SystemVerilog Data Types Support. CallTime Avg (internal)>> because CallTime Avg (internal) is interpreted as being. $convert with target type string (aka $toString) should accept all supported bson types. I am trying to use the below formula instead of countd function because my data comes from Impala. Buckets can only be sorted on a sub-aggregator path that is built out of zero or more single-bucket aggregations within the path and a final single-bucket or a metrics aggregation at the path end. Error: Cannot Blend the secondary data source because one or more fields use an unsupported aggregation. Hi everyone, my first attempt to blend 2 data sets was not successful (Sheet called 1st attempt - attached), because its appears the following message "Cannot blend the secondary data source because one or more fields use an unsupported aggregation". The current aggregation appear as a part of the measures name in the view. I’ve found a couple examples in the forums. 2 Why does this MongoDB aggregate query return nothing? 0 Problem in using indexes in aggregation pipeline. {FIXED [Machine Nr] : COUNT ( [Machine Nr] )} / {FIXED [Machine Nr] : COUNT ( [Machine Nr] )} This works fine when there is no secondary data source but when I blend with a secondary data source it grays out my sheet i. twbx. Mean of grades (with extra credits): Unsupported aggregation provided here only for backward compatibility with old activities. You can't use a measure when it's configured to use an unsupported aggregation type. I get error: “Cannot blend the secondary data source because one or more fields use an unsupported aggregation. average. – Ripul. The . 61042 - 2014. 6. The measure is using one of the Defined in expression aggregation types, and the expression for the measure contains what looks like a hard-coded aggregate function. All the three main measures were exposed in the bottom of the query but there is an extra metric based on an average aggregation behavior, the query formula will use the weight of luggage as measure and apply the aggregation to calculate the average during the run-time. Over Aggregation # Batch Streaming OVER aggregates compute an aggregated value for every input row over a range of ordered rows. 6. 0, and 5. The InfoProvider contains a non-cumulative key figure ‘STOCK’ (with aggregation LAST) and a delta key figure ‘DELTA’ is assigned to ‘STOCK’. When there is unsupported aggregated measure using WINDOWS Functions, COUNTD,LODs etc. 💥Check my Website💥 Troubleshoot Data Blending in Tableau Part 2 here SHOP values are being replicated, changing the aggregation for the relevant field in the view (for example, from AVG to SUM) will not change the result of the aggregation. Step 2: Setting the Default Aggregation for a Measure in Tableau. e. unknown. movieId GROUP BY a. . That will avoid duplicated records resulting from the join. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. Aggregation operators and stages. In the Data page, go to the Data Diagram and locate the datasets to blend. counts) are maintained for each unique value in the user-specified grouping column. Some aggregation and exception aggregation types do not support data entry. The measure is using one of the Defined in expression aggregation types, and the expression for the measure contains what looks like a hard-coded aggregate function. For example,. When I try to add COUNTD([DistrictId]) from my primary to text table. Hi Justin, Thanks for your quick reply. An aggregation pipeline is a series of stages that are used to transform a document. This is because Calculation1 is an aggregate but the rest of the fields you're using are not aggregates. We should add test cases for the scripted fields we currently support to make sure we maintain support. ) If only one of the tables requires row level information, consider making that the primary data source in the blend (I. Drivers configured for automatic Client-Side Field Level Encryption pass these commands directly to the mongod: getMore [ 1] authenticate. The unsupported aggregation happens when your aggregate requires row-level visibility to the secondary data source. A. If you need to use an unsupported operation in an aggregation, you must define the entire expression using the BSON Document type. This section lists the supported functionality. The Queryable Encryption Public Preview, released in version 6. LINQ allows you to construct queries against strongly typed collections of objects by using language keywords and operators. " message. Try to use this calculation:. Supported Aggregation Stages. It does not make sense to have different exception aggregation types for the same account in different models. I did that in your example too. Blending with CountD and LODs. This aggregation is unsupported: Quarter . M". getnonce. column1. Sorted by: 2. Some examples include: session cookies needed to transmit the website, authentication cookies, and security cookies. Supported Aggregation Stages. I've tried that in the past, and I was always blocked by the unsupported aggregation message. You can retrieve the buckets page by page and do the counting based on the doc count. 0 using the C# MongoDB. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. Unsupported Commands. While on a view, right click a data source, click replace data source. Drill down to the leaf level to enter data. I believe I first learned. Chapter Title. . I am using Tableau 2018. This field works but when I want to add in my Fianl Dashboard I have this message "Cannot blend the secondary data source because one or more fields use an unsupported aggregation" Moreover my first and secondart data sources are linked by the "Sales ID", but this field is not displayed in the final Dashboard. Unsupported Aggregation means that the action requested at one of the sources or the act of bringing them together can not be done - in your case you have used a table calculation to determine a performance score - Table calculations are performed on the underlying table for a specific worksheet and can not be carried or transferred from one sheet to another Add a comment. Cannot blend the secondary data source because one or more fields use an unsupported aggregation issue. Aggregation is computed as an average of the values in the result set for this object. with blends, we are only able to support aggregates (like SUM, MIN, MAX. For example, you might want to extract a birthday month, or the day of the week on which an order was placed. Use aggregation instead. Unsupported DefaultAggregation: #AVG in analytical CDS. Note: The backup only stores the vDS configuration from the vCenter Server perspective. From my primary data source I have a dimension in columns say 'Customer Segment'. There are situations like this where I’ve gone back to the data source to build out SQL views that did pre-aggregation, used Alteryx to join in additional information so I didn’t need a data blend, etc. For example, if the aggregate rule for QI_a is set to sum, and the. Lowest grade: the smallest grade after normalization; Highest grade: the largest grade after. sql. Primary Data source - Actuals ( day grain) Secondary data source - Goals (quarter grain) Calculated Measures: Primary Data source :- CustCount = CountD( Cust_ID ). 5 or below. We use three kinds of cookies on our websites: required, functional, and advertising. I get error: “Cannot blend the secondary data source because one or more fields use an unsupported aggregation. I have changed the code with your suggested method and now getting this output: "ERROR : Unsupported document type for unmarshalling: []bson. NET/C# Driver automatically translates LINQ queries into aggregation operations. LOD expressions are used when running complex queries with multiple dimensions at the data source level. Keep asking questions as you progress on your journey with MongoDB, and soon you’ll be helping those who are new on the path. costcenterkey, adr. 3 and I have created aggregates AGG for fields from data extract and excel file. Hi. Multiple instances of same dimension. You need to show same values as long as you choose districts within a same area. LOD will not work if it is from the secondary datasource. "cannot blend the secondary data source because one or more fields use an unsupported aggregation" Attached is the workbook that could provide more clarity on my question. For more information on aggregation types, refer to Disaggregation of Values During Data Entry. THEN add this total to the SUM of the projected_users from today's date through month X. The date aggregation operators enable you to extract different parts of a given date or a timestamp. The version I am working with 10. Usually in this case it is recommended to upgrade the document to a newer version. UNSUPPORTED_IN_EXISTS_SUBQUERY. It shows the next message: "Cannot blend the secondary data source because one or more fields use an unsupported aggregation". id = totals1. Loading. How to calculate Delta value. ProductionDate)' is neither present in the group by, nor in an aggregate function. If the conversion fails,. The problem is when I try to calculate the median of that same measure. using a value_count aggregation on fields within a rollup index that specified value_count as a supported metrics is broken. Q&A for work. Ditto: { FIXED [Patient ID] : COUNTD([Patient ID]) } Yet there it is in your workbook, very happy and functional. Add the ’ [‘ open-square-brackets to the beginning and ‘]’ close-square-brackets to the end. 0. Some examples include: cookies used to. Atlas Build on a developer data platform Database Deploy a multi-cloud database Search Deliver engaging search experiences Vector Search (Preview) Design intelligent apps with GenAI Stream Processing (Preview) Unify data in motion and data at restPossible Reason How to resolve this issue; There's a dimension combination rule that defines this data cell as an invalid member combination for data entry. We use three kinds of cookies on our websites: required, functional, and advertising. Hi Folks, I am trying to solve a typical requirement (at least for me ). Aggregation is not supported for this object. Depending on the type of data item, applies. Hi All - its been a while since I chimed in and I did find a workaround for my case. Amazon's S3 Select allows a user to write SQL against S3 objects, but there's insufficient documentation around what standard SQL functionality is supported. Cannot blend the secondary data source because one or more fields use an unsupported aggregation . I have an LOD expression that works fine when the data source is the primary, but when I switch it to a secondary data source and then add the LOD expression to a view I get the annoying, "Unsupported aggregation" issue. In the primary data source I have some calculations that work off of group membership too--some true false that feed into the measures via INT function for a Max aggregation. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. I get error: “Cannot blend the secondary data source because one or more fields use an unsupported aggregation. C Bi-level aggregation on the structural neighborhood. The examples in this guide use the restaurants collection in the sample_restaurants database provided in the Atlas sample datasets . ) I need to revisit my understanding of the limitations here! unsupported csv filters – spendChange alerts accept filter as comma-separated values; other alert types do not. automatic. This aggregation is unsupported: Year . Because the secondary data source always has to be aggregated, there's no way to do a row level check to filter out any dimension members that match between the two data sources. Unsupported exception aggregation: The following exception aggregations cannot be inverted: <exception aggregations> Some exception aggregation types do not support data entry. Non-additive aggregates are generally not usable when a secondary dimension appears on any Shelf or there’s a linking dimension that is not in the view. ” Causes and Workarounds for a Blending Limitation Errors. I did that in your example too. I get "unsupported aggregation type [multi_terms]" @Val – Orkun. My step-by-step blueprint for using Looker Studio (formerly Google Data Studio) Get the FREE ebook on Looker Studio (75 Pages)2. Expand Post. You can choose whether functional and advertising cookies apply. If. udf. "Cannot blend the secondary data source because one or more fields use an unsupported aggregation. Consider a books collection with the following document: {"_id": 1, title. name from t1 t inner join category c on t.