diff options
| -rw-r--r-- | sql/core/src/main/scala/org/apache/spark/sql/jdbc/JDBCRDD.scala | 10 | ||||
| -rw-r--r-- | sql/core/src/test/scala/org/apache/spark/sql/jdbc/JDBCSuite.scala | 2 |
2 files changed, 10 insertions, 2 deletions
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/jdbc/JDBCRDD.scala b/sql/core/src/main/scala/org/apache/spark/sql/jdbc/JDBCRDD.scala index f3b5455574..cef92abbdc 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/jdbc/JDBCRDD.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/jdbc/JDBCRDD.scala @@ -37,7 +37,7 @@ private[sql] object JDBCRDD extends Logging { * @param sqlType - A field of java.sql.Types * @return The Catalyst type corresponding to sqlType. */ - private def getCatalystType(sqlType: Int): DataType = { + private def getCatalystType(sqlType: Int, precision: Int, scale: Int): DataType = { val answer = sqlType match { case java.sql.Types.ARRAY => null case java.sql.Types.BIGINT => LongType @@ -49,6 +49,8 @@ private[sql] object JDBCRDD extends Logging { case java.sql.Types.CLOB => StringType case java.sql.Types.DATALINK => null case java.sql.Types.DATE => DateType + case java.sql.Types.DECIMAL + if precision != 0 || scale != 0 => DecimalType(precision, scale) case java.sql.Types.DECIMAL => DecimalType.Unlimited case java.sql.Types.DISTINCT => null case java.sql.Types.DOUBLE => DoubleType @@ -61,6 +63,8 @@ private[sql] object JDBCRDD extends Logging { case java.sql.Types.NCHAR => StringType case java.sql.Types.NCLOB => StringType case java.sql.Types.NULL => null + case java.sql.Types.NUMERIC + if precision != 0 || scale != 0 => DecimalType(precision, scale) case java.sql.Types.NUMERIC => DecimalType.Unlimited case java.sql.Types.NVARCHAR => StringType case java.sql.Types.OTHER => null @@ -109,10 +113,11 @@ private[sql] object JDBCRDD extends Logging { val dataType = rsmd.getColumnType(i + 1) val typeName = rsmd.getColumnTypeName(i + 1) val fieldSize = rsmd.getPrecision(i + 1) + val fieldScale = rsmd.getScale(i + 1) val nullable = rsmd.isNullable(i + 1) != ResultSetMetaData.columnNoNulls val metadata = new MetadataBuilder().putString("name", columnName) var columnType = quirks.getCatalystType(dataType, typeName, fieldSize, metadata) - if (columnType == null) columnType = getCatalystType(dataType) + if (columnType == null) columnType = getCatalystType(dataType, fieldSize, fieldScale) fields(i) = StructField(columnName, columnType, nullable, metadata.build()) i = i + 1 } @@ -307,6 +312,7 @@ private[sql] class JDBCRDD( case BooleanType => BooleanConversion case DateType => DateConversion case DecimalType.Unlimited => DecimalConversion + case DecimalType.Fixed(d) => DecimalConversion case DoubleType => DoubleConversion case FloatType => FloatConversion case IntegerType => IntegerConversion diff --git a/sql/core/src/test/scala/org/apache/spark/sql/jdbc/JDBCSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/jdbc/JDBCSuite.scala index 856a806781..b165ab2b1d 100644 --- a/sql/core/src/test/scala/org/apache/spark/sql/jdbc/JDBCSuite.scala +++ b/sql/core/src/test/scala/org/apache/spark/sql/jdbc/JDBCSuite.scala @@ -22,6 +22,7 @@ import java.sql.DriverManager import java.util.{Calendar, GregorianCalendar, Properties} import org.apache.spark.sql.test._ +import org.apache.spark.sql.types._ import org.h2.jdbc.JdbcSQLException import org.scalatest.{FunSuite, BeforeAndAfter} import TestSQLContext._ @@ -271,6 +272,7 @@ class JDBCSuite extends FunSuite with BeforeAndAfter { assert(rows(0).getDouble(1) === 1.00000011920928955) // Yes, I meant ==. assert(rows(0).getAs[BigDecimal](2) .equals(new BigDecimal("123456789012345.54321543215432100000"))) + assert(rows(0).schema.fields(2).dataType === DecimalType(40, 20)) } test("SQL query as table name") { |