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https://issues.apache.org/jira/browse/HBASE-15572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15228580#comment-15228580
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Weiqing Yang commented on HBASE-15572:
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[~busbey] Hi, Sean
I tried to add descriptions in spark.adoc and submitted several times but
failed, e.g. HBASE-15572-8.patch. HBASE-15572-7.patch is the version without
doc update, which passed all the tests. The only difference between
HBASE-15572-8.patch and HBASE-15572-7.patch as following:
------------------------
diff --git src/main/asciidoc/_chapters/spark.adoc
src/main/asciidoc/_chapters/spark.adoc
index b1bdb5d..9148ce2 100644
--- src/main/asciidoc/_chapters/spark.adoc
+++ src/main/asciidoc/_chapters/spark.adoc
@@ -395,6 +395,11 @@ The HBase-Spark module includes support for Spark SQL and
DataFrames, which allo
you to write SparkSQL directly on HBase tables. In addition the HBase-Spark
will push down query filtering logic to HBase.
+Users can query records with different timestamps or time ranges with
+minimum timestamp and maximum timestamp. In HBaseSparkConf, the hbase
configuration,
+four parameters related to timestamp can be set: timestamp, minTimestamp,
+maxiTimestamp and maxVersions.
+
---------------------
I am new to contribute the apache community. Could you please help to check if
the error is from the test system itself or from my patch? I think my patch is
small and safe which just add timestamps to let users select different
timestamps or time ranges. Thank you very much for your help.
> Adding optional timestamp semantics to HBase-Spark
> --------------------------------------------------
>
> Key: HBASE-15572
> URL: https://issues.apache.org/jira/browse/HBASE-15572
> Project: HBase
> Issue Type: New Feature
> Components: spark
> Reporter: Weiqing Yang
> Assignee: Weiqing Yang
> Fix For: 2.0.0
>
> Attachments: HBASE-15572-1.patch, HBASE-15572-2.patch,
> HBASE-15572-3.patch, HBASE-15572-4.patch, HBASE-15572-5.patch,
> HBASE-15572-6.patch, HBASE-15572-7.patch, HBASE-15572-8.patch
>
>
> Right now the timestamp is always latest. With this patch, users can select
> timestamps they want.
> In this patch, 4 parameters, "timestamp", "minTimestamp", "maxiTimestamp" and
> "maxVersions" are added to HBaseSparkConf. Users can select a timestamp, they
> can also select a time range with minimum timestamp and maximum timestamp. A
> new test for selecting records with different timestamps is added.
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