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https://issues.apache.org/jira/browse/SPARK-11628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14998348#comment-14998348
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zhangshunyu commented on SPARK-11628:
-------------------------------------
I think that if we add 3 lines in the file
"spark\sql\types\DataTypeParser.scala", this problem would be solved:
protected lazy val primitiveType: Parser[DataType] =
"(?i)string".r ^^^ StringType |
"(?i)float".r ^^^ FloatType |
"(?i)(?:int|integer)".r ^^^ IntegerType |
"(?i)tinyint".r ^^^ ByteType |
"(?i)smallint".r ^^^ ShortType |
"(?i)double".r ^^^ DoubleType |
"(?i)(?:bigint|long)".r ^^^ LongType |
"(?i)binary".r ^^^ BinaryType |
"(?i)boolean".r ^^^ BooleanType |
fixedDecimalType |
"(?i)decimal".r ^^^ DecimalType.USER_DEFAULT |
fixedDecType |
"(?i)dec".r ^^^ DecimalType.USER_DEFAULT |
fixedNumericType |
"(?i)numeric".r ^^^ DecimalType.USER_DEFAULT |
"(?i)date".r ^^^ DateType |
"(?i)timestamp".r ^^^ TimestampType |
varchar|
++ char
++ protected lazy val char: Parser[DataType] =
++ "(?i)char".r ~> "(" ~> (numericLit <~ ")") ^^^ StringType
> spark-sql do not support for column datatype of CHAR
> ----------------------------------------------------
>
> Key: SPARK-11628
> URL: https://issues.apache.org/jira/browse/SPARK-11628
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.5.1
> Reporter: zhangshunyu
> Labels: features
>
> In spark-sql when we create a table using the command as follwing:
> "create table tablename(col char(5));"
> Hive will support for creating the table, but when we desc the table:
> "desc tablename"
> spark will report the error：
> “org.apache.spark.sql.types.DataTypeException: Unsupported dataType:
> char(5). If you have a struct and a field name of it has any special
> characters, please use backticks (`) to quote that field name, e.g. `x+y`.
> Please note that backtick itself is not supported in a field name.”
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