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[SPARK-19257][SQL]location for table/partition/database should be java.net.URI #17149

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[SPARK-19257][SQL]location for table/partition/database should be java.net.URI #17149

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38436e8
convert to URI
windpiger Mar 3, 2017
69a1646
fix some sytle
windpiger Mar 3, 2017
890327a
revert the DataBase location type
windpiger Mar 3, 2017
e792cb6
fix test failed
windpiger Mar 3, 2017
f2b9bd8
add test cases
windpiger Mar 3, 2017
109e2b5
fix some code review
windpiger Mar 5, 2017
dc0a37b
optimize code
windpiger Mar 6, 2017
b6bc466
optimize some code
windpiger Mar 6, 2017
abfb6f5
modify util func
windpiger Mar 6, 2017
80f2c40
fix a code
windpiger Mar 6, 2017
681db88
modify test name
windpiger Mar 6, 2017
5b92620
fix test failed
windpiger Mar 6, 2017
5b423f5
fix test failed
windpiger Mar 6, 2017
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24 changes: 24 additions & 0 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/ExternalCatalogUtils.scala
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Expand Up @@ -17,6 +17,8 @@

package org.apache.spark.sql.catalyst.catalog

import java.net.URI

import org.apache.hadoop.fs.Path
import org.apache.hadoop.util.Shell

Expand Down Expand Up @@ -162,6 +164,28 @@ object CatalogUtils {
BucketSpec(numBuckets, normalizedBucketCols, normalizedSortCols)
}

/**
* Convert URI to String.
* Since URI.toString does not decode for the uri string, we need to use
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@cloud-fan cloud-fan Mar 6, 2017 •
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Since URI.toString does not decode the uri, e.g. you may see `%21` instead of `!`.
Here we create a hadoop Path with the given URI, ad rely on Path.toString to decode the uri

* Path(uri).toString to decode it.
* @param uri the URI of the path
* @return the String of the path
*/
def URIToString(uri: Option[URI]): Option[String] = {
uri.map(new Path(_).toString)
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@cloud-fan cloud-fan Mar 6, 2017

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can you try java.net.URLDecoder? I'd like to avoid hadoop dependency on this kind of basic functionality.

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@windpiger windpiger Mar 6, 2017

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what about StringToURI? it still import Path

}

/**
* Convert String to URI.
* Since new URI(string) does not encode for the path string, we need to use
* Path(string).toURI to encode it.
* @param str the String of the path
* @return the URI of the path
*/
def stringToURI(str: Option[String]): Option[URI] = {
str.map(new Path(_).toUri)
}

private def normalizeColumnName(
tableName: String,
tableCols: Seq[String],
Expand Down
12 changes: 6 additions & 6 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/InMemoryCatalog.scala
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Expand Up @@ -202,7 +202,7 @@ class InMemoryCatalog(
tableDefinition.storage.locationUri.isEmpty

val tableWithLocation = if (needDefaultTableLocation) {
val defaultTableLocation = new Path(catalog(db).db.locationUri, table)
val defaultTableLocation = new Path(new Path(catalog(db).db.locationUri), table)
try {
val fs = defaultTableLocation.getFileSystem(hadoopConfig)
fs.mkdirs(defaultTableLocation)
Expand All @@ -211,7 +211,7 @@ class InMemoryCatalog(
throw new SparkException(s"Unable to create table $table as failed " +
s"to create its directory $defaultTableLocation", e)
}
tableDefinition.withNewStorage(locationUri = Some(defaultTableLocation.toUri.toString))
tableDefinition.withNewStorage(locationUri = Some(defaultTableLocation.toUri))
} else {
tableDefinition
}
Expand Down Expand Up @@ -274,7 +274,7 @@ class InMemoryCatalog(
"Managed table should always have table location, as we will assign a default location " +
"to it if it doesn't have one.")
val oldDir = new Path(oldDesc.table.location)
val newDir = new Path(catalog(db).db.locationUri, newName)
val newDir = new Path(new Path(catalog(db).db.locationUri), newName)
try {
val fs = oldDir.getFileSystem(hadoopConfig)
fs.rename(oldDir, newDir)
Expand All @@ -283,7 +283,7 @@ class InMemoryCatalog(
throw new SparkException(s"Unable to rename table $oldName to $newName as failed " +
s"to rename its directory $oldDir", e)
}
oldDesc.table = oldDesc.table.withNewStorage(locationUri = Some(newDir.toUri.toString))
oldDesc.table = oldDesc.table.withNewStorage(locationUri = Some(newDir.toUri))
}

catalog(db).tables.put(newName, oldDesc)
Expand Down Expand Up @@ -389,7 +389,7 @@ class InMemoryCatalog(

existingParts.put(
p.spec,
p.copy(storage = p.storage.copy(locationUri = Some(partitionPath.toString))))
p.copy(storage = p.storage.copy(locationUri = Some(partitionPath.toUri))))
}
}

Expand Down Expand Up @@ -462,7 +462,7 @@ class InMemoryCatalog(
}
oldPartition.copy(
spec = newSpec,
storage = oldPartition.storage.copy(locationUri = Some(newPartPath.toString)))
storage = oldPartition.storage.copy(locationUri = Some(newPartPath.toUri)))
} else {
oldPartition.copy(spec = newSpec)
}
Expand Down
5 changes: 3 additions & 2 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala
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Expand Up @@ -17,6 +17,7 @@

package org.apache.spark.sql.catalyst.catalog

import java.net.URI
import javax.annotation.concurrent.GuardedBy

import scala.collection.mutable
Expand Down Expand Up @@ -131,7 +132,7 @@ class SessionCatalog(
* does not contain a scheme, this path will not be changed after the default
* FileSystem is changed.
*/
private def makeQualifiedPath(path: String): Path = {
private def makeQualifiedPath(path: URI): Path = {
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@cloud-fan cloud-fan Mar 6, 2017

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this method can return URI too

val hadoopPath = new Path(path)
val fs = hadoopPath.getFileSystem(hadoopConf)
fs.makeQualified(hadoopPath)
Expand Down Expand Up @@ -170,7 +171,7 @@ class SessionCatalog(
"you cannot create a database with this name.")
}
validateName(dbName)
val qualifiedPath = makeQualifiedPath(dbDefinition.locationUri).toString
val qualifiedPath = makeQualifiedPath(dbDefinition.locationUri).toUri
externalCatalog.createDatabase(
dbDefinition.copy(name = dbName, locationUri = qualifiedPath),
ignoreIfExists)
Expand Down
14 changes: 6 additions & 8 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/interface.scala
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Expand Up @@ -17,6 +17,7 @@

package org.apache.spark.sql.catalyst.catalog

import java.net.URI
import java.util.Date

import com.google.common.base.Objects
Expand Down Expand Up @@ -48,10 +49,7 @@ case class CatalogFunction(
* Storage format, used to describe how a partition or a table is stored.
*/
case class CatalogStorageFormat(
// TODO(ekl) consider storing this field as java.net.URI for type safety. Note that this must
// be converted to/from a hadoop Path object using new Path(new URI(locationUri)) and
// path.toUri respectively before use as a filesystem path due to URI char escaping.
locationUri: Option[String],
locationUri: Option[URI],
inputFormat: Option[String],
outputFormat: Option[String],
serde: Option[String],
Expand Down Expand Up @@ -105,7 +103,7 @@ case class CatalogTablePartition(
}

/** Return the partition location, assuming it is specified. */
def location: String = storage.locationUri.getOrElse {
def location: URI = storage.locationUri.getOrElse {
val specString = spec.map { case (k, v) => s"$k=$v" }.mkString(", ")
throw new AnalysisException(s"Partition [$specString] did not specify locationUri")
}
Expand Down Expand Up @@ -210,7 +208,7 @@ case class CatalogTable(
}

/** Return the table location, assuming it is specified. */
def location: String = storage.locationUri.getOrElse {
def location: URI = storage.locationUri.getOrElse {
throw new AnalysisException(s"table $identifier did not specify locationUri")
}

Expand Down Expand Up @@ -241,7 +239,7 @@ case class CatalogTable(

/** Syntactic sugar to update a field in `storage`. */
def withNewStorage(
locationUri: Option[String] = storage.locationUri,
locationUri: Option[URI] = storage.locationUri,
inputFormat: Option[String] = storage.inputFormat,
outputFormat: Option[String] = storage.outputFormat,
compressed: Boolean = false,
Expand Down Expand Up @@ -337,7 +335,7 @@ object CatalogTableType {
case class CatalogDatabase(
name: String,
description: String,
locationUri: String,
locationUri: URI,
properties: Map[String, String])


Expand Down
20 changes: 11 additions & 9 deletions sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/catalog/ExternalCatalogSuite.scala
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Expand Up @@ -17,6 +17,8 @@

package org.apache.spark.sql.catalyst.catalog

import java.net.URI

import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.fs.Path
import org.scalatest.BeforeAndAfterEach
Expand Down Expand Up @@ -340,7 +342,7 @@ abstract class ExternalCatalogSuite extends SparkFunSuite with BeforeAndAfterEac
"db1",
"tbl",
Map("partCol1" -> "1", "partCol2" -> "2")).location
val tableLocation = catalog.getTable("db1", "tbl").location
val tableLocation = new Path(catalog.getTable("db1", "tbl").location)
val defaultPartitionLocation = new Path(new Path(tableLocation, "partCol1=1"), "partCol2=2")
assert(new Path(partitionLocation) == defaultPartitionLocation)
}
Expand Down Expand Up @@ -508,7 +510,7 @@ abstract class ExternalCatalogSuite extends SparkFunSuite with BeforeAndAfterEac
partitionColumnNames = Seq("partCol1", "partCol2"))
catalog.createTable(table, ignoreIfExists = false)

val tableLocation = catalog.getTable("db1", "tbl").location
val tableLocation = new Path(catalog.getTable("db1", "tbl").location)

val mixedCasePart1 = CatalogTablePartition(
Map("partCol1" -> "1", "partCol2" -> "2"), storageFormat)
Expand Down Expand Up @@ -553,7 +555,7 @@ abstract class ExternalCatalogSuite extends SparkFunSuite with BeforeAndAfterEac
test("alter partitions") {
val catalog = newBasicCatalog()
try {
val newLocation = newUriForDatabase()
val newLocation = new Path(newUriForDatabase()).toUri
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@cloud-fan cloud-fan Mar 6, 2017

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unnecessary change?

val newSerde = "com.sparkbricks.text.EasySerde"
val newSerdeProps = Map("spark" -> "bricks", "compressed" -> "false")
// alter but keep spec the same
Expand Down Expand Up @@ -699,7 +701,7 @@ abstract class ExternalCatalogSuite extends SparkFunSuite with BeforeAndAfterEac
// File System operations
// --------------------------------------------------------------------------

private def exists(uri: String, children: String*): Boolean = {
private def exists(uri: URI, children: String*): Boolean = {
val base = new Path(uri)
val finalPath = children.foldLeft(base) {
case (parent, child) => new Path(parent, child)
Expand Down Expand Up @@ -742,7 +744,7 @@ abstract class ExternalCatalogSuite extends SparkFunSuite with BeforeAndAfterEac
identifier = TableIdentifier("external_table", Some("db1")),
tableType = CatalogTableType.EXTERNAL,
storage = CatalogStorageFormat(
Some(Utils.createTempDir().getAbsolutePath),
Some(Utils.createTempDir().toURI),
None, None, None, false, Map.empty),
schema = new StructType().add("a", "int").add("b", "string"),
provider = Some(defaultProvider)
Expand Down Expand Up @@ -790,7 +792,7 @@ abstract class ExternalCatalogSuite extends SparkFunSuite with BeforeAndAfterEac
val partWithExistingDir = CatalogTablePartition(
Map("partCol1" -> "7", "partCol2" -> "8"),
CatalogStorageFormat(
Some(tempPath.toURI.toString),
Some(tempPath.toURI),
None, None, None, false, Map.empty))
catalog.createPartitions("db1", "tbl", Seq(partWithExistingDir), ignoreIfExists = false)

Expand All @@ -799,7 +801,7 @@ abstract class ExternalCatalogSuite extends SparkFunSuite with BeforeAndAfterEac
val partWithNonExistingDir = CatalogTablePartition(
Map("partCol1" -> "9", "partCol2" -> "10"),
CatalogStorageFormat(
Some(tempPath.toURI.toString),
Some(tempPath.toURI),
None, None, None, false, Map.empty))
catalog.createPartitions("db1", "tbl", Seq(partWithNonExistingDir), ignoreIfExists = false)
assert(tempPath.exists())
Expand Down Expand Up @@ -883,7 +885,7 @@ abstract class CatalogTestUtils {

def newFunc(): CatalogFunction = newFunc("funcName")

def newUriForDatabase(): String = Utils.createTempDir().toURI.toString.stripSuffix("/")
def newUriForDatabase(): URI = new URI(Utils.createTempDir().toURI.toString.stripSuffix("/"))
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@cloud-fan cloud-fan Mar 3, 2017

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we can simply it and write Utils.createTempDir().toURI

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@windpiger windpiger Mar 4, 2017

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Utils.createTempDir().toURI has a suffix '/', here we have to strip it

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@windpiger windpiger Mar 6, 2017

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@cloud-fan after I try to use Path to Compare , I think stripSuffix here is the simple way.

Path with a String type constructor will be equal when one has a /, and another does not.

scala> val x = new Path("/ab/c/")
x: org.apache.hadoop.fs.Path = /ab/c

scala> val y = new Path("/ab/c")
y: org.apache.hadoop.fs.Path = /ab/c

scala> x == y
res0: Boolean = true

Path with a URI type constructor will be not equal when one has a /, and another does not.

scala> val x =new URI("/a/b/c/")
x: java.net.URI = /a/b/c/

scala> val y =new URI("/a/b/c")
y: java.net.URI = /a/b/c

scala> x == y
res1: Boolean = false

scala> val x1 =new Path(x)
x1: org.apache.hadoop.fs.Path = /a/b/c/

scala> val y1 =new Path(y)
y1: org.apache.hadoop.fs.Path = /a/b/c

scala> x1 == y1
res2: Boolean = false

So just the Path with String type can ignore the suffix /, then if we have a URI in hand, and we want to compare with another URI, we should first transform them to String , and use this String to constructor a Path, after this two actions, we can compare them with ignore the suffix /.

But I think it is more complicate, here we normalize the URI with stripSuffix from the Orignal then compare two URI directly, it is more simple.

should we must to convert it to Path to compare?

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@cloud-fan cloud-fan Mar 6, 2017

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I think it's ok if we always compare URI with Path, instead of converting it to string.


def newDb(name: String): CatalogDatabase = {
CatalogDatabase(name, name + " description", newUriForDatabase(), Map.empty)
Expand All @@ -895,7 +897,7 @@ abstract class CatalogTestUtils {
CatalogTable(
identifier = TableIdentifier(name, database),
tableType = CatalogTableType.EXTERNAL,
storage = storageFormat.copy(locationUri = Some(Utils.createTempDir().getAbsolutePath)),
storage = storageFormat.copy(locationUri = Some(Utils.createTempDir().toURI)),
schema = new StructType()
.add("col1", "int")
.add("col2", "string")
Expand Down
9 changes: 6 additions & 3 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala
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Expand Up @@ -21,6 +21,7 @@ import scala.collection.JavaConverters._

import org.antlr.v4.runtime.{ParserRuleContext, Token}
import org.antlr.v4.runtime.tree.TerminalNode
import org.apache.hadoop.fs.Path
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@cloud-fan cloud-fan Mar 6, 2017

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we can remove this


import org.apache.spark.sql.SaveMode
import org.apache.spark.sql.catalyst.{FunctionIdentifier, TableIdentifier}
Expand Down Expand Up @@ -386,7 +387,7 @@ class SparkSqlAstBuilder(conf: SQLConf) extends AstBuilder {
"LOCATION and 'path' in OPTIONS are both used to indicate the custom table path, " +
"you can only specify one of them.", ctx)
}
val customLocation = storage.locationUri.orElse(location)
val customLocation = storage.locationUri.orElse(CatalogUtils.stringToURI(location))

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@HyukjinKwon HyukjinKwon Apr 5, 2017 •
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It seems this has a double-de/encoding problem when the input path is an URI.

scala> new org.apache.hadoop.fs.Path(new java.io.File("a b").toURI.toString).toUri.toString
res1: String = file:/.../a%2520b

A space character in URI is encoded as %20 and % character is encoded as %25. It seems a URI has a %20 and then is url-encoded from %20 to %2520.

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@HyukjinKwon HyukjinKwon Apr 5, 2017

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Also, it seems we have a similar util with CatalogUtils.stringToURI in org.apache.spark.util.Utils.resolveURI. Could we consolidate them? I did not replace it when I identified this because some existing tests in org.apache.spark.util.UtilsSuite were broken but I guess it would be fine if there is a coherent reason. These broken cases might be bugs.

@windpiger could you double check my comments and open a followup if I was not wrong?

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@HyukjinKwon HyukjinKwon Apr 5, 2017

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I did not replace it when I identified this because some existing tests in org.apache.spark.util.UtilsSuite were broken but I guess it would be fine if there is a coherent reason. These broken cases might be bugs.

FYI.. cc @sarutak

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@gatorsmile gatorsmile Apr 5, 2017

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If you reproduce it as a bug, please submit a PR to fix it.

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@cloud-fan cloud-fan Apr 5, 2017

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how could the input path be a URI string?

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@HyukjinKwon HyukjinKwon Apr 5, 2017

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Hm.. is the input path always expected to be a path? I thought we support both URI and path forms.

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@cloud-fan cloud-fan Apr 5, 2017

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It's ambiguous to support both, what if users do wanna create a path /tmp/%25?

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@HyukjinKwon HyukjinKwon Apr 5, 2017

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Up to my knowledge, HDFS's fully qualified path is a URI form. If we do not support this, that virtually means we are going to disallow the fully qualified path. I understand it sounds ambiguous but disallowing does not look a good solution.

Also, if users might want to access to local files or S3 when default scheme is hdfs, I guess it requires changing the default scheme every time.

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@HyukjinKwon HyukjinKwon Apr 5, 2017 •
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In addition, I guess we already have a lot of tests with URI input paths and I did many of them to pass the tests on Windows, which I guess implicitly some committers do not disagree with this.

IMHO, I guess URIs should be supported first correctly because those local path form is abbreviation of the fully qualified path.

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@sarutak sarutak Apr 5, 2017 •
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how could the input path be a URI string?

How about external tables on S3?

val tableType = if (customLocation.isDefined) {
CatalogTableType.EXTERNAL
Expand Down Expand Up @@ -1080,8 +1081,10 @@ class SparkSqlAstBuilder(conf: SQLConf) extends AstBuilder {
if (external && location.isEmpty) {
operationNotAllowed("CREATE EXTERNAL TABLE must be accompanied by LOCATION", ctx)
}

val locUri = CatalogUtils.stringToURI(location)
val storage = CatalogStorageFormat(
locationUri = location,
locationUri = locUri,
inputFormat = fileStorage.inputFormat.orElse(defaultStorage.inputFormat),
outputFormat = fileStorage.outputFormat.orElse(defaultStorage.outputFormat),
serde = rowStorage.serde.orElse(fileStorage.serde).orElse(defaultStorage.serde),
Expand Down Expand Up @@ -1132,7 +1135,7 @@ class SparkSqlAstBuilder(conf: SQLConf) extends AstBuilder {
// At here, both rowStorage.serdeProperties and fileStorage.serdeProperties
// are empty Maps.
val newTableDesc = tableDesc.copy(
storage = CatalogStorageFormat.empty.copy(locationUri = location),
storage = CatalogStorageFormat.empty.copy(locationUri = locUri),
provider = Some(conf.defaultDataSourceName))
CreateTable(newTableDesc, mode, Some(q))
} else {
Expand Down
12 changes: 8 additions & 4 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/command/createDataSourceTables.scala
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Expand Up @@ -17,6 +17,10 @@

package org.apache.spark.sql.execution.command

import java.net.URI

import org.apache.hadoop.fs.Path

import org.apache.spark.sql._
import org.apache.spark.sql.catalyst.catalog._
import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
Expand Down Expand Up @@ -54,7 +58,7 @@ case class CreateDataSourceTableCommand(table: CatalogTable, ignoreIfExists: Boo

// Create the relation to validate the arguments before writing the metadata to the metastore,
// and infer the table schema and partition if users didn't specify schema in CREATE TABLE.
val pathOption = table.storage.locationUri.map("path" -> _)
val pathOption = CatalogUtils.URIToString(table.storage.locationUri).map("path" -> _)
// Fill in some default table options from the session conf
val tableWithDefaultOptions = table.copy(
identifier = table.identifier.copy(
Expand Down Expand Up @@ -146,7 +150,7 @@ case class CreateDataSourceTableAsSelectCommand(
assert(table.schema.isEmpty)

val tableLocation = if (table.tableType == CatalogTableType.MANAGED) {
Some(sessionState.catalog.defaultTablePath(table.identifier))
Some(new Path(sessionState.catalog.defaultTablePath(table.identifier)).toUri)
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the defaultTablePath should also return URI now.

} else {
table.storage.locationUri
}
Expand Down Expand Up @@ -175,12 +179,12 @@ case class CreateDataSourceTableAsSelectCommand(
private def saveDataIntoTable(
session: SparkSession,
table: CatalogTable,
tableLocation: Option[String],
tableLocation: Option[URI],
data: LogicalPlan,
mode: SaveMode,
tableExists: Boolean): BaseRelation = {
// Create the relation based on the input logical plan: `data`.
val pathOption = tableLocation.map("path" -> _)
val pathOption = CatalogUtils.URIToString(tableLocation).map("path" -> _)
val dataSource = DataSource(
session,
className = table.provider.get,
Expand Down
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