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Posted to issues@spark.apache.org by "Chaoqin Li (Jira)" <ji...@apache.org> on 2023/11/05 05:16:00 UTC
[jira] [Created] (SPARK-45794) Introduce state metadata source to query the streaming state metadata information
Chaoqin Li created SPARK-45794:
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Summary: Introduce state metadata source to query the streaming state metadata information
Key: SPARK-45794
URL: https://issues.apache.org/jira/browse/SPARK-45794
Project: Spark
Issue Type: Improvement
Components: Structured Streaming
Affects Versions: 3.5.0
Reporter: Chaoqin Li
Introduce a new data source so that user can query the metadata of each state store of a streaming query, the schema of the result will be
operatorId INT | operatorName STRING | stateStoreName STRING | numPartitions INT | numColsPrefixKey INT | minBatchId LONG | minBatchId LONG
To use this source, specify the source format and checkpoint path
_df = spark.read.format(“state-metadata”).load(“/checkpointPath”)_
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