When using a Delta table as a stream source, the query first processes all of the data present in the table. The Delta table at this version is called the initial snapshot. By default, the Delta table’s data files are processed based on which file was last modified. However, the last...
When using a Delta table as a stream source, the query first processes all of the data present in the table. The Delta table at this version is called the initial snapshot. By default, the Delta table’s data files are processed based on which file was last modified. However, the last...
How to reproduce it: fromconcurrent.futuresimportThreadPoolExecutorfromdeltalakeimportDeltaTable,write_deltalakeimportpolarsasplpath='some local path'table=pl.DataFrame({'a': [1,2,3]}).to_arrow()write_deltalake(path,table)dt=DeltaTable(path)withThreadPoolExecutor()asexe:list(exe.map(lambda_:w...
@toby01234 use the merge on the DeltaTable directy: https://delta-io.github.io/delta-rs/api/delta_table/#deltalake.DeltaTable.merge Bidek56 commented on Jan 15, 2025 Bidek56 on Jan 15, 2025 Contributor This works fine. pl.DataFrame({ 'id': ['a', 'b', 'c', 'd'], 'val'...
Delta table as a source Structured Streaming incrementally reads Delta tables. While a streaming query is active against a Delta table, new records are processed idempotently as new table versions commit to the source table. The follow code examples show configuring a streaming read using either th...
1、saveAsTable方法无效，会全表覆盖写，需要用insertInto，详情见代码 2、insertInto需要主要DataFrame...
A DataFrame that has the output data of a micro-batch. The unique ID of the micro-batch.You must use foreachBatch for Delta Lake merge operations in Structured Streaming. See Upsert from streaming queries using foreachBatch.Apply additional DataFrame operations...
Problem You add data to a Delta table, but the data disappears without warning. There is no obvious error message. Cause This can happen when spark.databri
When using a Delta table as a stream source, the query first processes all of the data present in the table. The Delta table at this version is called the initial snapshot. By default, the Delta table's data files are processed based on which file was last modified. However, the last...
I am trying to write a spark dataframe into Azure container through Minio Azure Gateway in delta table format. But Expected Behavior Delta table should be written to azure Current Behavior Getting error Path is a file while writing the d...