We have a nested json in our input stream which we are writing into snowflake normalized tables using Upsolver snowflake outputs. The parent table is fine but seeing NULL records in the child table. Why is this happening and how can we solve this issue?
Upsolver snowflake output creating NULL records in snowflake child table
48 Views Asked by Ajay C At
1
There are 1 best solutions below
Related Questions in UPSOLVER
- How do you mask parts of an IP address in a data transformation
- Using MD5 and missing some records in my output in Upsolver SQLake
- Should I create SYNC jobs only in SQLake?
- Aggregating data in Upsolver and using Athena output to Upsert in Athena
- How can I create an array of key,value pairs within a transformation?
- How do I exclude certain columns within a transformation?
- Upsolver Hive or Athena output have Upsert Partition Fields property. What does this do?
- Upsolver snowflake output creating NULL records in snowflake child table
- Upgrade message pop in Upsolver
- Using MERGE command in Upsolver
- How do you perform a "one time" data load into Upsolver from a JDCB data source?
- Why is our Upsolver Kafka data source trying to connect to broker/node host not defined in connection
- Can I change the data source for my output jobs in Upsolver
- Why is my Upsolver Kafka data source is stuck and/or not pulling any data
- How do I modify Upsert key for a snowflake output in Upsolver
Related Questions in SQLAKE
- How do you mask parts of an IP address in a data transformation
- Using MD5 and missing some records in my output in Upsolver SQLake
- Should I create SYNC jobs only in SQLake?
- Aggregating data in Upsolver and using Athena output to Upsert in Athena
- How can I create an array of key,value pairs within a transformation?
- Upsolver snowflake output creating NULL records in snowflake child table
- In SQLake, if I stop my ingestion copy from job or my intermediate transformation job, what happens to my pipeline
- Why is our Upsolver Kafka data source trying to connect to broker/node host not defined in connection
- Can I change the data source for my output jobs in Upsolver
- Why is my Upsolver Kafka data source is stuck and/or not pulling any data
- How do I modify Upsert key for a snowflake output in Upsolver
- What lifecycle role can we apply on Upsolver buckets?
- CDC in Upsolver
- Can I load historical data in Upsolver/SQLake at a later time after current data is already ingested
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
This is happening perhaps because you have empty child nodes in your input json. Since the parent id is always present in the input record, the child table output record will have this parent id populated and rest of the child table columns will be NULL as there was no data in the input event for it. To account for this, please add "WHERE <child_identifier> is NOT NULL" in your child table Upsolver Snowflake output. This will ensure only valid child nodes would actually get written.
Note: The preview for the Upsolver output for the child record would show nulls as well, that should be an indicator that the SQL for this output needs some correction, in this case, the WHERE filter.
If this job has already been run, please stop the job, truncate the snowflake table, edit the job to add the WHERE criteria and re-run the job from the beginning (replay from beginning).