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[SPARK-23238][SQL] Externalize SQLConf configurations exposed in documentation #20403

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[SPARK-23238][SQL] Externalize SQLConf configurations exposed in documentation #20403

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4899e33
Minor doc correction for 'spark.sql.execution.arrow.enabled'
HyukjinKwon Jan 26, 2018
1f4d288
Address comments
HyukjinKwon Jan 26, 2018
0c05526
Externalize few more configurations mentioned in the documentation
HyukjinKwon Jan 28, 2018
fd7f5c0
Take out 'spark.sql.execution.arrow.maxRecordsPerBatch' for now
HyukjinKwon Jan 29, 2018
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12 changes: 5 additions & 7 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -123,14 +123,12 @@ object SQLConf {
.createWithDefault(10)

val COMPRESS_CACHED = buildConf("spark.sql.inMemoryColumnarStorage.compressed")
.internal()
.doc("When set to true Spark SQL will automatically select a compression codec for each " +
"column based on statistics of the data.")
.booleanConf
.createWithDefault(true)

val COLUMN_BATCH_SIZE = buildConf("spark.sql.inMemoryColumnarStorage.batchSize")
.internal()
.doc("Controls the size of batches for columnar caching. Larger batch sizes can improve " +
"memory utilization and compression, but risk OOMs when caching data.")
.intConf
Expand Down Expand Up @@ -1043,11 +1041,11 @@ object SQLConf {

val ARROW_EXECUTION_ENABLE =
buildConf("spark.sql.execution.arrow.enabled")
.internal()
.doc("Make use of Apache Arrow for columnar data transfers. Currently available " +
"for use with pyspark.sql.DataFrame.toPandas with the following data types: " +
"StringType, BinaryType, BooleanType, DoubleType, FloatType, ByteType, IntegerType, " +
"LongType, ShortType")
.doc("When true, make use of Apache Arrow for columnar data transfers. Currently available " +
"for use with pyspark.sql.DataFrame.toPandas, and " +
"pyspark.sql.SparkSession.createDataFrame when its input is a Pandas DataFrame. " +
"The following data types are unsupported: " +
"MapType, ArrayType of TimestampType, and nested StructType.")
.booleanConf
.createWithDefault(false)
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@viirya viirya Jan 28, 2018

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spark.sql.execution.arrow.maxRecordsPerBatch is also mentioned in the doc change at #19575. Shall we also externalize it?

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@HyukjinKwon HyukjinKwon Jan 28, 2018 •
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Yup. Let me update spark.sql.inMemoryColumnarStorage.compressed and spark.sql.inMemoryColumnarStorage.batchSize too. These are also exposed but internals.


Expand Down