Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/22379#discussion_r222771917 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/csvExpressions.scala --- @@ -0,0 +1,104 @@ +/* + * 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.catalyst.expressions + +import org.apache.spark.sql.AnalysisException +import org.apache.spark.sql.catalyst.InternalRow +import org.apache.spark.sql.catalyst.csv._ +import org.apache.spark.sql.catalyst.expressions.codegen.CodegenFallback +import org.apache.spark.sql.catalyst.util._ +import org.apache.spark.sql.types._ +import org.apache.spark.unsafe.types.UTF8String + +/** + * Converts a CSV input string to a [[StructType]] with the specified schema. + */ +// scalastyle:off line.size.limit +@ExpressionDescription( + usage = "_FUNC_(csvStr, schema[, options]) - Returns a struct value with the given `csvStr` and `schema`.", + examples = """ + Examples: + > SELECT _FUNC_('1, 0.8', 'a INT, b DOUBLE'); + {"a":1, "b":0.8} --- End diff -- Also add an example with options.
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