Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/15090#discussion_r81103501
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/StatisticsColumnSuite.scala ---
@@ -0,0 +1,355 @@
+/*
+ * 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
+
+import java.sql.{Date, Timestamp}
+
+import org.apache.spark.sql.catalyst.{InternalRow, TableIdentifier}
+import org.apache.spark.sql.catalyst.parser.ParseException
+import org.apache.spark.sql.catalyst.plans.logical.ColumnStat
+import org.apache.spark.sql.catalyst.util.DateTimeUtils
+import org.apache.spark.sql.execution.command.AnalyzeColumnCommand
+import org.apache.spark.sql.test.SQLTestData.ArrayData
+import org.apache.spark.sql.types._
+
+class StatisticsColumnSuite extends StatisticsTest {
+ import testImplicits._
+
+ test("parse analyze column commands") {
+ def assertAnalyzeColumnCommand(analyzeCommand: String, c: Class[_]) {
+ val parsed = spark.sessionState.sqlParser.parsePlan(analyzeCommand)
+ val operators = parsed.collect {
+ case a: AnalyzeColumnCommand => a
+ case o => o
+ }
+ assert(operators.size == 1)
+ if (operators.head.getClass != c) {
+ fail(
+ s"""$analyzeCommand expected command: $c, but got
${operators.head}
+ |parsed command:
+ |$parsed
+ """.stripMargin)
+ }
+ }
+
+ val table = "table"
+ assertAnalyzeColumnCommand(
+ s"ANALYZE TABLE $table COMPUTE STATISTICS FOR COLUMNS key, value",
+ classOf[AnalyzeColumnCommand])
+
+ intercept[ParseException] {
+ sql(s"ANALYZE TABLE $table COMPUTE STATISTICS FOR COLUMNS")
+ }
+ }
+
+ test("analyzing columns of non-atomic types is not supported") {
+ val tableName = "tbl"
+ withTable(tableName) {
+ Seq(ArrayData(Seq(1, 2, 3), Seq(Seq(1, 2,
3)))).toDF().write.saveAsTable(tableName)
+ val err = intercept[AnalysisException] {
+ sql(s"ANALYZE TABLE $tableName COMPUTE STATISTICS FOR COLUMNS
data")
+ }
+ assert(err.message.contains("Analyzing columns is not supported"))
+ }
+ }
+
+ test("check correctness of columns") {
+ val table = "tbl"
+ val colName1 = "abc"
+ val colName2 = "x.yz"
+ val quotedColName2 = s"`$colName2`"
--- End diff --
you can inline this variable, i.e.`CREATE TABLE $table ($colName1 int,
`$colName2` string)`
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