doc: Add Quickstart Comet doc section #125
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sunchao
changed the title
sunchao
reviewed
Feb 27, 2024
| ``` | ||
| spark-shell --jars spark/target/comet-spark-spark3.4_2.12-0.1.0-SNAPSHOT.jar \ | ||
| --conf spark.sql.extensions=org.apache.comet.CometSparkSessionExtensions \ | ||
| --conf spark.comet.enabled=true \ |
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we need a separate section to guide through shuffle related settings, but can be done later.
sunchao
approved these changes
Feb 28, 2024
|
Merged, thanks! |
viirya
reviewed
Feb 28, 2024
| - INFO message shows the native Comet library has been initialized. | ||
| - The query plan reflects Comet operators being used for this query instead of Spark ones | ||
| ```scala | ||
| scala> spark.read.parquet("/tmp/test").createOrReplaceTempView("t1"); spark.sql("select * from t1 where a > 5").explain |
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It should be nicer to read if newline is added.
scala> spark.read.parquet("/tmp/test").createOrReplaceTempView("t1")
scala> spark.sql("select * from t1 where a > 5").explain
viirya
reviewed
Feb 28, 2024
| == Physical Plan == | ||
| *(1) ColumnarToRow | ||
| +- CometFilter [a#14], (isnotnull(a#14) AND (a#14 > 5)) | ||
| +- CometScan parquet [a#14] Batched: true, DataFilters: [isnotnull(a#14), (a#14 > 5)], Format: CometParquet, Location: InMemoryFileIndex(1 paths)[file:/tmp/test], PartitionFilters: [], PushedFilters: [IsNotNull(a), GreaterThan(a,5)], ReadSchema: struct<a:int> |
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And the explained plan string too. Right now it is a long string which is hard to read.
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I'll break it into some newlines for easier reading
This was referenced Feb 28, 2024
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Which issue does this PR close?
Closes #57 .
Rationale for this change
What changes are included in this PR?
Quickstart Comet doc section
How are these changes tested?