From 9991c2dad6d09d77d5a61e4c4dcd1770e5d984d4 Mon Sep 17 00:00:00 2001 From: jiangxingbo Date: Mon, 6 Mar 2017 12:35:03 -0800 Subject: [SPARK-19211][SQL] Explicitly prevent Insert into View or Create View As Insert ## What changes were proposed in this pull request? Currently we don't explicitly forbid the following behaviors: 1. The statement CREATE VIEW AS INSERT INTO throws the following exception: ``` scala> spark.sql("CREATE VIEW testView AS INSERT INTO tab VALUES (1, \"a\")") org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.hadoop.hive.ql.metadata.HiveException: at least one column must be specified for the table; scala> spark.sql("CREATE VIEW testView(a, b) AS INSERT INTO tab VALUES (1, \"a\")") org.apache.spark.sql.AnalysisException: The number of columns produced by the SELECT clause (num: `0`) does not match the number of column names specified by CREATE VIEW (num: `2`).; ``` 2. The statement INSERT INTO view VALUES throws the following exception from checkAnalysis: ``` scala> spark.sql("INSERT INTO testView VALUES (1, \"a\")") org.apache.spark.sql.AnalysisException: Inserting into an RDD-based table is not allowed.;; 'InsertIntoTable View (`default`.`testView`, [a#16,b#17]), false, false +- LocalRelation [col1#14, col2#15] ``` After this PR, the behavior changes to: ``` scala> spark.sql("CREATE VIEW testView AS INSERT INTO tab VALUES (1, \"a\")") org.apache.spark.sql.catalyst.parser.ParseException: Operation not allowed: CREATE VIEW ... AS INSERT INTO; scala> spark.sql("CREATE VIEW testView(a, b) AS INSERT INTO tab VALUES (1, \"a\")") org.apache.spark.sql.catalyst.parser.ParseException: Operation not allowed: CREATE VIEW ... AS INSERT INTO; scala> spark.sql("INSERT INTO testView VALUES (1, \"a\")") org.apache.spark.sql.AnalysisException: `default`.`testView` is a view, inserting into a view is not allowed; ``` ## How was this patch tested? Add a new test case in `SparkSqlParserSuite`; Update the corresponding test case in `SQLViewSuite`. Author: jiangxingbo Closes #17125 from jiangxb1987/insert-with-view. --- .../scala/org/apache/spark/sql/execution/SparkSqlParser.scala | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'sql/core/src/main') diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala index c106163741..00d1d6d270 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala @@ -1331,6 +1331,15 @@ class SparkSqlAstBuilder(conf: SQLConf) extends AstBuilder { if (ctx.identifierList != null) { operationNotAllowed("CREATE VIEW ... PARTITIONED ON", ctx) } else { + // CREATE VIEW ... AS INSERT INTO is not allowed. + ctx.query.queryNoWith match { + case s: SingleInsertQueryContext if s.insertInto != null => + operationNotAllowed("CREATE VIEW ... AS INSERT INTO", ctx) + case _: MultiInsertQueryContext => + operationNotAllowed("CREATE VIEW ... AS FROM ... [INSERT INTO ...]+", ctx) + case _ => // OK + } + val userSpecifiedColumns = Option(ctx.identifierCommentList).toSeq.flatMap { icl => icl.identifierComment.asScala.map { ic => ic.identifier.getText -> Option(ic.STRING).map(string) -- cgit v1.2.3