From 00c0f33d405fc88f0d63bdc21090ac59feefadeb Mon Sep 17 00:00:00 2001 From: Henry Robinson Date: Mon, 30 Apr 2018 17:09:23 -0700 Subject: [PATCH 1/2] [SPARK-24128][SQL] Mention configuration option in implicit CROSS JOIN error --- .../org/apache/spark/sql/catalyst/optimizer/Optimizer.scala | 6 ++++-- .../catalyst/optimizer/CheckCartesianProductsSuite.scala | 2 +- .../src/test/scala/org/apache/spark/sql/JoinSuite.scala | 4 ++-- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala index 45f13956a0a85..bfa61116a6658 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala +++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala @@ -1182,12 +1182,14 @@ object CheckCartesianProducts extends Rule[LogicalPlan] with PredicateHelper { case j @ Join(left, right, Inner | LeftOuter | RightOuter | FullOuter, _) if isCartesianProduct(j) => throw new AnalysisException( - s"""Detected cartesian product for ${j.joinType.sql} join between logical plans + s"""Detected implicit cartesian product for ${j.joinType.sql} join between logical plans |${left.treeString(false).trim} |and |${right.treeString(false).trim} |Join condition is missing or trivial. - |Use the CROSS JOIN syntax to allow cartesian products between these relations.""" + |Either: use the CROSS JOIN syntax to allow cartesian products between these + |relations, or: enable implicit cartesian products by setting the configuration + |variable spark.sql.crossJoin.enabled=true""" .stripMargin) } } diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CheckCartesianProductsSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CheckCartesianProductsSuite.scala index 21220b38968e8..788fedb3c8e8e 100644 --- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CheckCartesianProductsSuite.scala +++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CheckCartesianProductsSuite.scala @@ -56,7 +56,7 @@ class CheckCartesianProductsSuite extends PlanTest { val thrownException = the [AnalysisException] thrownBy { performCartesianProductCheck(joinType) } - assert(thrownException.message.contains("Detected cartesian product")) + assert(thrownException.message.contains("Detected implicit cartesian product")) } } } diff --git a/sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala index 771e1186e63ab..8fa747465cb1a 100644 --- a/sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala +++ b/sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala @@ -239,7 +239,7 @@ class JoinSuite extends QueryTest with SharedSQLContext { Row(2, 2, 1, null) :: Row(2, 2, 2, 2) :: Nil) } - assert(e.getMessage.contains("Detected cartesian product for INNER join " + + assert(e.getMessage.contains("Detected implicit cartesian product for INNER join " + "between logical plans")) } } @@ -611,7 +611,7 @@ class JoinSuite extends QueryTest with SharedSQLContext { val e = intercept[Exception] { checkAnswer(sql(query), Nil); } - assert(e.getMessage.contains("Detected cartesian product")) + assert(e.getMessage.contains("Detected implicit cartesian product")) } cartesianQueries.foreach(checkCartesianDetection) From 42d0241feef21c71be1a5223ff7c359b7ad4c27b Mon Sep 17 00:00:00 2001 From: Henry Robinson Date: Tue, 1 May 2018 15:00:42 -0700 Subject: [PATCH 2/2] Missed an R test --- R/pkg/tests/fulltests/test_sparkSQL.R | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/R/pkg/tests/fulltests/test_sparkSQL.R b/R/pkg/tests/fulltests/test_sparkSQL.R index 8cc2db7a140f9..4d8c5e25ac03f 100644 --- a/R/pkg/tests/fulltests/test_sparkSQL.R +++ b/R/pkg/tests/fulltests/test_sparkSQL.R @@ -2204,8 +2204,8 @@ test_that("join(), crossJoin() and merge() on a DataFrame", { expect_equal(count(where(join(df, df2), df$name == df2$name)), 3) # cartesian join expect_error(tryCatch(count(join(df, df2)), error = function(e) { stop(e) }), - paste0(".*(org.apache.spark.sql.AnalysisException: Detected cartesian product for", - " INNER join between logical plans).*")) + paste0(".*(org.apache.spark.sql.AnalysisException: Detected implicit cartesian", + " product for INNER join between logical plans).*")) joined <- crossJoin(df, df2) expect_equal(names(joined), c("age", "name", "name", "test"))