I am trying to reproduce it with some dummy data. Will share if I manage to do it. @ion-elgrecothis is an out of memory killer terminating the process which typically means too much data is being used at once for the merge window, so reducing that should help. This line stuck out t...
My current merge is like so: df.write_delta( tgt_table_path , storage_options=storage_options , mode='merge' , delta_merge_options={ "predicate" : "s.TxnDate = t.TxnDate and s.fdTxnKey = t.fdTxnKey" , "source_alias" : "s" , "target_alias" : "t" } , delta_write_options...
importio.delta.tables._importorg.apache.spark.sql.functions._valdeltaTablePeople =DeltaTable.forName(spark,"people10m")valdeltaTablePeopleUpdates =DeltaTable.forName(spark,"people10mupdates")valdfUpdates = deltaTablePeopleUpdates.toDF() deltaTablePeople .as("people") .merge( dfUpdates.as("updates"...
you can treat these tables much as you would tables in a database - you can insert, update, delete and merge data into them. Databricks takes care of storing and organizing the data in a manner that supports efficient operations. Since the data is stored in the open Delta Lake format, ...
Environment Delta-rs version: 0.18.1 (Python deltalake 0.18.1) Binding: Environment: Cloud provider: OS: MacOS Sonoma 14.5 (Intel) Other: Bug What happened: Using write_deltalake to append data to a table with schema_mode="merge", if I c...
let merge_planner = DeltaPlanner::<MergeMetricExtensionPlanner> { extension_planner: MergeMetricExtensionPlanner {}, };let state = state.with_query_planner(Arc::new(merge_planner));// TODO: Given the join predicate, remove any expression that involve the ...
Delta Lake MERGE command allows users to update a delta table with advanced conditions. It can update data from a source table, view, or DataFrame into a target table by using MERGE command. However, the current algorithm in the open source distribution of Delta Lake isn't fully optimized fo...
Assume that the same item can show up anywhere in the @odata.nextLink sequence and handle that in your merge logic. $top The number of objects in each page can vary depending on the resource type and the type of changes made to the resource....
It would be great if we can have overwrite the existing schema of the delta table with append mode that does not effect the existing data. Can you please let me know if we can update schema while appending data? 👋 Theschema_mode='merge'parameter is not, and will likely never be supp...
Using merge predicate: (s.unique_row_hash = t.unique_row_hash) AND (s.month_id = t.month_id AND t.month_id = 202502 AND s.date_id = t.date_id AND t.date_id = 20250226) Testing with streamed_exec=False: streamed_exec=False results: {'num_source_rows': 1, 'num_target_rows...