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[SPARK-28977][DOCS][SQL] Fix DataFrameReader.json docs to doc that partition column can be numeric, date or timestamp type #25687

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[SPARK-28977][DOCS][SQL] Fix DataFrameReader.json docs to doc that partition column can be numeric, date or timestamp type #25687

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Fix DataFrameReader.json docs to doc that partition column can be num…
srowen Sep 5, 2019
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srowen Sep 5, 2019
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3 changes: 2 additions & 1 deletion R/pkg/R/SQLContext.R
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Expand Up @@ -624,7 +624,8 @@ loadDF <- function(path = NULL, source = NULL, schema = NULL, ...) {
#'
#' @param url JDBC database url of the form \code{jdbc:subprotocol:subname}
#' @param tableName the name of the table in the external database
#' @param partitionColumn the name of a column of integral type that will be used for partitioning
#' @param partitionColumn the name of a column of numeric, date, or timestamp type
#' that will be used for partitioning.
#' @param lowerBound the minimum value of \code{partitionColumn} used to decide partition stride
#' @param upperBound the maximum value of \code{partitionColumn} used to decide partition stride
#' @param numPartitions the number of partitions, This, along with \code{lowerBound} (inclusive),
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3 changes: 2 additions & 1 deletion python/pyspark/sql/readwriter.py
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Expand Up @@ -533,7 +533,8 @@ def jdbc(self, url, table, column=None, lowerBound=None, upperBound=None, numPar

:param url: a JDBC URL of the form ``jdbc:subprotocol:subname``
:param table: the name of the table
:param column: the name of an integer column that will be used for partitioning;
:param column: the name of a column of numeric, date, or timestamp type
that will be used for partitioning;
if this parameter is specified, then ``numPartitions``, ``lowerBound``
(inclusive), and ``upperBound`` (exclusive) will form partition strides
for generated WHERE clause expressions used to split the column
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3 changes: 2 additions & 1 deletion sql/core/src/main/scala/org/apache/spark/sql/DataFrameReader.scala
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Expand Up @@ -265,7 +265,8 @@ class DataFrameReader private[sql](sparkSession: SparkSession) extends Logging {
*
* @param url JDBC database url of the form `jdbc:subprotocol:subname`.
* @param table Name of the table in the external database.
* @param columnName the name of a column of integral type that will be used for partitioning.
* @param columnName the name of a column of numeric, date, or timestamp type
* that will be used for partitioning.
* @param lowerBound the minimum value of `columnName` used to decide partition stride.
* @param upperBound the maximum value of `columnName` used to decide partition stride.
* @param numPartitions the number of partitions. This, along with `lowerBound` (inclusive),
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