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[WIP][SPARK-28151][SQL] Mapped ByteType to TinyINT for MsSQLServerDialect #25344

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[WIP][SPARK-28151][SQL] Mapped ByteType to TinyINT for MsSQLServerDialect #25344

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1abf3fc
Fix for ByteType. Mapping of ByteType is changed to TinyInt in MsSQLS…
shivsood Aug 3, 2019
3a5a621
fixed Numeric types test. tinyint should be compared with java.lang.b…
shivsood Aug 5, 2019
7658bbc
Fixed test. Added test to validate broader value range and col data t…
shivsood Oct 15, 2019
ec5315d
test fix to use testimplicits for simplicity
shivsood Oct 30, 2019
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31 changes: 31 additions & 0 deletions ...egration-tests/src/test/scala/org/apache/spark/sql/jdbc/MsSqlServerIntegrationSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,9 @@ import java.util.Properties

import org.apache.spark.tags.DockerTest

import org.apache.spark.sql.types._
import org.apache.spark.sql.{DataFrame, Row}

@DockerTest
class MsSqlServerIntegrationSuite extends DockerJDBCIntegrationSuite {
override val db = new DatabaseOnDocker {
Expand Down Expand Up @@ -202,4 +205,32 @@ class MsSqlServerIntegrationSuite extends DockerJDBCIntegrationSuite {
df2.write.jdbc(jdbcUrl, "datescopy", new Properties)
df3.write.jdbc(jdbcUrl, "stringscopy", new Properties)
}

def create_df() : DataFrame = {
val tableSchema = StructType(Seq(
StructField("serialNum",ByteType,true)
))

val tableData = Seq (
Row(10)
)

spark.createDataFrame(spark.sparkContext.parallelize(tableData),tableSchema)
}

test("SPARK-28151 Test write table with BYTETYPE") {
val df1 = create_df()
df1.write
.format("jdbc")
.mode("overwrite")
.option("url",jdbcUrl)
.option("dbtable","testTable")
.save()
val df2 = spark.read
.format("jdbc")
.option("url",jdbcUrl)
.option("dbtable","byteTable")
.load()
df2.show()
}
}
2 changes: 1 addition & 1 deletion sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/jdbc/JdbcUtils.scala
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Expand Up @@ -550,7 +550,7 @@ object JdbcUtils extends Logging {

case ByteType =>
(stmt: PreparedStatement, row: Row, pos: Int) =>
stmt.setInt(pos + 1, row.getByte(pos))
stmt.setByte(pos + 1, row.getByte(pos))

case BooleanType =>
(stmt: PreparedStatement, row: Row, pos: Int) =>
Expand Down
2 changes: 2 additions & 0 deletions sql/core/src/main/scala/org/apache/spark/sql/jdbc/MsSqlServerDialect.scala
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Expand Up @@ -33,6 +33,7 @@ private object MsSqlServerDialect extends JdbcDialect {
sqlType match {
case java.sql.Types.SMALLINT => Some(ShortType)
case java.sql.Types.REAL => Some(FloatType)
case java.sql.Types.TINYINT => Some(ByteType)
case _ => None
}
}
Expand All @@ -44,6 +45,7 @@ private object MsSqlServerDialect extends JdbcDialect {
case BooleanType => Some(JdbcType("BIT", java.sql.Types.BIT))
case BinaryType => Some(JdbcType("VARBINARY(MAX)", java.sql.Types.VARBINARY))
case ShortType => Some(JdbcType("SMALLINT", java.sql.Types.SMALLINT))
case ByteType => Some(JdbcType("TINYINT", java.sql.Types.TINYINT))
case _ => None
}

Expand Down