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Posted to issues@spark.apache.org by "jiaan.geng (Jira)" <ji...@apache.org> on 2022/04/11 06:46:00 UTC
[jira] [Updated] (SPARK-38852) Better Data Source V2 operator pushdown framework
[ https://issues.apache.org/jira/browse/SPARK-38852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
jiaan.geng updated SPARK-38852:
-------------------------------
Description:
Currently, Spark supports push down Filters and Aggregates to data source.
But, the
# Only simple filter and aggregate are supported, which makes it impossible to apply in most scenarios
# The incompatibility of SQL syntax makes it impossible to apply in most scenarios
# Aggregate push down does not support multiple partitions of data sources
# Spark's additional aggregate will cause some overhead
# Limit push down is not supported
# Top n push down is not supported
# Paging push down is not supported
> Better Data Source V2 operator pushdown framework
> -------------------------------------------------
>
> Key: SPARK-38852
> URL: https://issues.apache.org/jira/browse/SPARK-38852
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: jiaan.geng
> Priority: Major
>
> Currently, Spark supports push down Filters and Aggregates to data source.
> But, the
> # Only simple filter and aggregate are supported, which makes it impossible to apply in most scenarios
> # The incompatibility of SQL syntax makes it impossible to apply in most scenarios
> # Aggregate push down does not support multiple partitions of data sources
> # Spark's additional aggregate will cause some overhead
> # Limit push down is not supported
> # Top n push down is not supported
> # Paging push down is not supported
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