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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.sql.hive.execution
import org.apache.spark.sql.{AnalysisException, QueryTest, Row, SaveMode}
import org.apache.spark.sql.hive.test.TestHiveSingleton
import org.apache.spark.sql.internal.SQLConf
import org.apache.spark.sql.test.SQLTestUtils
/**
* A suite for testing view related functionality.
*/
class SQLViewSuite extends QueryTest with SQLTestUtils with TestHiveSingleton {
import hiveContext.implicits._
test("correctly parse CREATE VIEW statement") {
withSQLConf(SQLConf.NATIVE_VIEW.key -> "true") {
withTable("jt") {
val df = (1 until 10).map(i => i -> i).toDF("i", "j")
df.write.format("json").saveAsTable("jt")
sql(
"""CREATE VIEW IF NOT EXISTS
|default.testView (c1 COMMENT 'blabla', c2 COMMENT 'blabla')
|TBLPROPERTIES ('a' = 'b')
|AS SELECT * FROM jt""".stripMargin)
checkAnswer(sql("SELECT c1, c2 FROM testView ORDER BY c1"), (1 to 9).map(i => Row(i, i)))
sql("DROP VIEW testView")
}
}
}
test("correctly handle CREATE VIEW IF NOT EXISTS") {
withSQLConf(SQLConf.NATIVE_VIEW.key -> "true") {
withTable("jt", "jt2") {
sqlContext.range(1, 10).write.format("json").saveAsTable("jt")
sql("CREATE VIEW testView AS SELECT id FROM jt")
val df = (1 until 10).map(i => i -> i).toDF("i", "j")
df.write.format("json").saveAsTable("jt2")
sql("CREATE VIEW IF NOT EXISTS testView AS SELECT * FROM jt2")
// make sure our view doesn't change.
checkAnswer(sql("SELECT * FROM testView ORDER BY id"), (1 to 9).map(i => Row(i)))
sql("DROP VIEW testView")
}
}
}
Seq(true, false).foreach { enabled =>
val prefix = (if (enabled) "With" else "Without") + " canonical native view: "
test(s"$prefix correctly handle CREATE OR REPLACE VIEW") {
withSQLConf(
SQLConf.NATIVE_VIEW.key -> "true", SQLConf.CANONICAL_NATIVE_VIEW.key -> enabled.toString) {
withTable("jt", "jt2") {
sqlContext.range(1, 10).write.format("json").saveAsTable("jt")
sql("CREATE OR REPLACE VIEW testView AS SELECT id FROM jt")
checkAnswer(sql("SELECT * FROM testView ORDER BY id"), (1 to 9).map(i => Row(i)))
val df = (1 until 10).map(i => i -> i).toDF("i", "j")
df.write.format("json").saveAsTable("jt2")
sql("CREATE OR REPLACE VIEW testView AS SELECT * FROM jt2")
// make sure the view has been changed.
checkAnswer(sql("SELECT * FROM testView ORDER BY i"), (1 to 9).map(i => Row(i, i)))
sql("DROP VIEW testView")
val e = intercept[AnalysisException] {
sql("CREATE OR REPLACE VIEW IF NOT EXISTS testView AS SELECT id FROM jt")
}
assert(e.message.contains("not allowed to define a view"))
}
}
}
test(s"$prefix correctly handle ALTER VIEW") {
withSQLConf(
SQLConf.NATIVE_VIEW.key -> "true", SQLConf.CANONICAL_NATIVE_VIEW.key -> enabled.toString) {
withTable("jt", "jt2") {
withView("testView") {
sqlContext.range(1, 10).write.format("json").saveAsTable("jt")
sql("CREATE VIEW testView AS SELECT id FROM jt")
val df = (1 until 10).map(i => i -> i).toDF("i", "j")
df.write.format("json").saveAsTable("jt2")
sql("ALTER VIEW testView AS SELECT * FROM jt2")
// make sure the view has been changed.
checkAnswer(sql("SELECT * FROM testView ORDER BY i"), (1 to 9).map(i => Row(i, i)))
}
}
}
}
test(s"$prefix create hive view for json table") {
// json table is not hive-compatible, make sure the new flag fix it.
withSQLConf(
SQLConf.NATIVE_VIEW.key -> "true", SQLConf.CANONICAL_NATIVE_VIEW.key -> enabled.toString) {
withTable("jt") {
withView("testView") {
sqlContext.range(1, 10).write.format("json").saveAsTable("jt")
sql("CREATE VIEW testView AS SELECT id FROM jt")
checkAnswer(sql("SELECT * FROM testView ORDER BY id"), (1 to 9).map(i => Row(i)))
}
}
}
}
test(s"$prefix create hive view for partitioned parquet table") {
// partitioned parquet table is not hive-compatible, make sure the new flag fix it.
withSQLConf(
SQLConf.NATIVE_VIEW.key -> "true", SQLConf.CANONICAL_NATIVE_VIEW.key -> enabled.toString) {
withTable("parTable") {
withView("testView") {
val df = Seq(1 -> "a").toDF("i", "j")
df.write.format("parquet").partitionBy("i").saveAsTable("parTable")
sql("CREATE VIEW testView AS SELECT i, j FROM parTable")
checkAnswer(sql("SELECT * FROM testView"), Row(1, "a"))
}
}
}
}
}
test("CTE within view") {
withSQLConf(
SQLConf.NATIVE_VIEW.key -> "true", SQLConf.CANONICAL_NATIVE_VIEW.key -> "true") {
withView("cte_view") {
sql("CREATE VIEW cte_view AS WITH w AS (SELECT 1 AS n) SELECT n FROM w")
checkAnswer(sql("SELECT * FROM cte_view"), Row(1))
}
}
}
test("Using view after switching current database") {
withSQLConf(
SQLConf.NATIVE_VIEW.key -> "true", SQLConf.CANONICAL_NATIVE_VIEW.key -> "true") {
withView("v") {
sql("CREATE VIEW v AS SELECT * FROM src")
withTempDatabase { db =>
activateDatabase(db) {
// Should look up table `src` in database `default`.
checkAnswer(sql("SELECT * FROM default.v"), sql("SELECT * FROM default.src"))
// The new `src` table shouldn't be scanned.
sql("CREATE TABLE src(key INT, value STRING)")
checkAnswer(sql("SELECT * FROM default.v"), sql("SELECT * FROM default.src"))
}
}
}
}
}
test("Using view after adding more columns") {
withSQLConf(
SQLConf.NATIVE_VIEW.key -> "true", SQLConf.CANONICAL_NATIVE_VIEW.key -> "true") {
withTable("add_col") {
sqlContext.range(10).write.saveAsTable("add_col")
withView("v") {
sql("CREATE VIEW v AS SELECT * FROM add_col")
sqlContext.range(10).select('id, 'id as 'a).write.mode("overwrite").saveAsTable("add_col")
checkAnswer(sql("SELECT * FROM v"), sqlContext.range(10).toDF())
}
}
}
}
test("create hive view for joined tables") {
// make sure the new flag can handle some complex cases like join and schema change.
withSQLConf(SQLConf.NATIVE_VIEW.key -> "true") {
withTable("jt1", "jt2") {
sqlContext.range(1, 10).toDF("id1").write.format("json").saveAsTable("jt1")
sqlContext.range(1, 10).toDF("id2").write.format("json").saveAsTable("jt2")
sql("CREATE VIEW testView AS SELECT * FROM jt1 JOIN jt2 ON id1 == id2")
checkAnswer(sql("SELECT * FROM testView ORDER BY id1"), (1 to 9).map(i => Row(i, i)))
val df = (1 until 10).map(i => i -> i).toDF("id1", "newCol")
df.write.format("json").mode(SaveMode.Overwrite).saveAsTable("jt1")
checkAnswer(sql("SELECT * FROM testView ORDER BY id1"), (1 to 9).map(i => Row(i, i)))
sql("DROP VIEW testView")
}
}
}
}
|
