Hi,I have encountered a problem using spark, when creating a dataframe from a raw json source.I have defined an schema for my data and the problem is that when there is a mismatch between one of the column values and its defined schema, spark not onl...
@Farzad Bonabi​ :Thank you for reporting this issue. It seems to be a known bug in Spark when dealing with malformed decimal values. When a decimal value in the input JSON data is not parseable by Spark, it sets not only that column to null but also ...
I have a pyspark dataframe that I'm writing to an on-prem MSSQL server--it's a stopgap while we convert data warehousing jobs over to databricks. The processes that use those tables in the on-prem server rely on the tables maintaining the identical s...
Hi, I am facing a problem that I hope to get some help to understand. I have created a function that is supposed to check if the input data already exist in a saved delta table and if not, it should create some calculations and append the new data to...
I am trying to read the changes data from snowflake query into the dataframe using Databricks.Same query is working in snowflake but not in Databricks. Both sides timezones and format are same for the timestamp. I am trying to implement changetrackin...
you are format is wrong that's why you got an errortry thisSELECT * FROM TestTable CHANGES(INFORMATION => DEFAULT) AT(TIMESTAMP => TO_TIMESTAMP_TZ('2023-05-03 00:43:34.885','YYYY-MM-DD HH24:MI:SS.FF'))
I have data on s3 and i'm using autoloader to load the data. My json docs have fields which are array of structures. When I don't specify any schema the whole data is stored as strings even the array of structures are just a blob of string making it ...
Hi @Rishitha Reddy​ Hope everything is going great.Just wanted to check in if you were able to resolve your issue. If yes, would you be happy to mark an answer as best so that other members can find the solution more quickly? If not, please tell us s...
I am attempting to apply a function to a pyspark DataFrame and save the API response to a new column and then parse using `json_normalize`. This works fine in pandas, however, I run into an exception with `pyspark`. import pyspark.pandas as ps
i...
Hi @Keval Shah​ Thank you for posting your question in our community! We are happy to assist you.To help us provide you with the most accurate information, could you please take a moment to review the responses and select the one that best answers yo...
I have a pyspark dataframe that contains information about the tables that I have on sql database (creation date, number of rows, etc)Sample data: {
"Day":"2023-04-28",
"Environment":"dev",
"DatabaseName":"default",
"TableName":"discount"...
@Bruno Simoes​ :Yes, it is possible to write a PySpark DataFrame to a custom log table in Log Analytics workspace using the Azure Log Analytics Workspace API.Here's a high-level overview of the steps you can follow:Create an Azure Log Analytics Works...
Hello Everyone,I am new to Databricks, so I am at the learning stage. It would be very helpful if someone helps in resolving the issue or I can say helped me to fix my code.I have built the query that fetches the data based on CASE, in Case I have a ...
I used code like below to Use JDBC connect to databrick default cluster and read table into pyspark dataframeurl = 'jdbc:databricks://[workspace domain]:443/default;transportMode=http;ssl=1;AuthMech=3;httpPath=[path];AuthMech=3;UID=token;PWD=[your_ac...
@yu zhang​ :It looks like the issue with the first code snippet you provided is that it is not specifying the correct query to retrieve the data from your database.When using the load() method with the jdbc data source, you need to provide a SQL quer...
Dataframes to Pandas conversion step is failing with exception ""java.lang.IndexOutOfBoundsException: index: 16384, length: 4 (expected: range(0, 16384))", PFB screenshot for more details
Hi @Vindhya D​ Thank you for posting your question in our community! We are happy to assist you.To help us provide you with the most accurate information, could you please take a moment to review the responses and select the one that best answers you...
Hello. Could someone please explain why iteration over a Pyspark dataframe is way slower than over a Pandas dataframe?Pysparkdf_list = df.collect()for index in range(0, len(df_list )):.....Pandasdf_pnd = df.toPandas() for index, row in df_p...
Hi @ELENI GEORGOUSI​ Hope everything is going great.Just wanted to check in if you were able to resolve your issue. If yes, would you be happy to mark an answer as best so that other members can find the solution more quickly? If not, please tell us ...
Hi all,I am using a persist call on a spark dataframe inside an application to speed-up computations. The dataframe is used throughout my application and at the end of the application I am trying to clear the cache of the whole spark session by calli...
No solution yet:Hi @Suteja Kanuri​ ,Thank you for thinking along and replying!Unfortunately, I have not found a solution yet.I am getting an error that there exists no ```.getCache()``` method on a spark context. Also note that I have tried to do som...
Hi,I have a PySpark DataFrame with 11 million records. I created the DataFrame on a cluster. It is not saved on DBFS or storage account. import pyspark.sql.functions as F
from pyspark.sql.functions import col, when, floor, expr, hour, minute, to_time...
I am using a threadpool executor and running notebooks in parallel. However, these parallel notebooks are not using executors at all and all the load is going towards the driver node resulting in running out of memory for the driver node and eventual...
Hi @uzair mustafa​ Thank you for your question! To assist you better, please take a moment to review the answer and let me know if it best fits your needs.Please help us select the best solution by clicking on "Select As Best" if it does.Your feedbac...
I have followed the steps as mentioned in this blog : https://www.linkedin.com/pulse/aws-glue-data-catalog-metastore-databricks-deepak-rajak/ but when trying to saveAsTable(table_name), it is giving an error as IllegalArgumentException: Path must be ...
Hey @Raghu Bharadwaj Tallapragada​ Just wanted to check in if you were able to resolve your issue or do you need more help? We'd love to hear from you.Thanks!
