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[SPARK-23624][SQL]Revise doc of method pushFilters in Datasource V2 #20769
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Test build #88075 has finished for PR 20769 at commit
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retest this please. |
Test build #88077 has finished for PR 20769 at commit
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retest this please. |
Test build #88083 has finished for PR 20769 at commit
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gatorsmile
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Mar 9, 2018
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LGTM
asfgit
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## What changes were proposed in this pull request? Revise doc of method pushFilters in SupportsPushDownFilters/SupportsPushDownCatalystFilters In `FileSourceStrategy`, except `partitionKeyFilters`(the references of which is subset of partition keys), all filters needs to be evaluated after scanning. Otherwise, Spark will get wrong result from data sources like Orc/Parquet. This PR is to improve the doc. Author: Wang Gengliang <gengliang.wang@databricks.com> Closes #20769 from gengliangwang/revise_pushdown_doc. (cherry picked from commit 10b0657) Signed-off-by: gatorsmile <gatorsmile@gmail.com>
peter-toth
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## What changes were proposed in this pull request? Revise doc of method pushFilters in SupportsPushDownFilters/SupportsPushDownCatalystFilters In `FileSourceStrategy`, except `partitionKeyFilters`(the references of which is subset of partition keys), all filters needs to be evaluated after scanning. Otherwise, Spark will get wrong result from data sources like Orc/Parquet. This PR is to improve the doc. Author: Wang Gengliang <gengliang.wang@databricks.com> Closes apache#20769 from gengliangwang/revise_pushdown_doc. (cherry picked from commit 10b0657) Signed-off-by: gatorsmile <gatorsmile@gmail.com>
rdblue
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## What changes were proposed in this pull request? Revise doc of method pushFilters in SupportsPushDownFilters/SupportsPushDownCatalystFilters In `FileSourceStrategy`, except `partitionKeyFilters`(the references of which is subset of partition keys), all filters needs to be evaluated after scanning. Otherwise, Spark will get wrong result from data sources like Orc/Parquet. This PR is to improve the doc. Author: Wang Gengliang <gengliang.wang@databricks.com> Closes apache#20769 from gengliangwang/revise_pushdown_doc.
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What changes were proposed in this pull request?
Revise doc of method pushFilters in SupportsPushDownFilters/SupportsPushDownCatalystFilters
In
FileSourceStrategy
, exceptpartitionKeyFilters
(the references of which is subset of partition keys), all filters needs to be evaluated after scanning. Otherwise, Spark will get wrong result from data sources like Orc/Parquet.This PR is to improve the doc.