panbingkun commented on code in PR #46655:
URL: https://github.com/apache/spark/pull/46655#discussion_r1610842180
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connector/docker-integration-tests/src/test/scala/org/apache/spark/sql/jdbc/MySQLIntegrationSuite.scala:
##########
@@ -154,30 +154,43 @@ class MySQLIntegrationSuite extends
DockerJDBCIntegrationSuite {
test("SPARK-47462: Unsigned numeric types") {
val df = sqlContext.read.jdbc(jdbcUrl, "unsigned_numbers", new Properties)
val rows = df.head()
- assert(rows.get(0).isInstanceOf[Short])
- assert(rows.get(1).isInstanceOf[Integer])
- assert(rows.get(2).isInstanceOf[Integer])
- assert(rows.get(3).isInstanceOf[Long])
- assert(rows.get(4).isInstanceOf[BigDecimal])
- assert(rows.get(5).isInstanceOf[BigDecimal])
- assert(rows.get(6).isInstanceOf[Double])
- // Unlike MySQL, MariaDB seems not to distinguish signed and unsigned
tinyint(1).
val isMaria = jdbcUrl.indexOf("disableMariaDbDriver") == -1
if (isMaria) {
+ assert(rows.get(0).isInstanceOf[Integer])
+ assert(rows.get(1).isInstanceOf[Long])
+ assert(rows.get(2).isInstanceOf[Integer])
+ assert(rows.get(3).isInstanceOf[BigDecimal])
Review Comment:
the root cause of this change
- change:
index[0], Short => Integer
index[1], Integer => Long
index[3], Long => Decimal
- Before - (mariadb jdbc driver: 2.7.12):
<img width="1037" alt="image"
src="https://github.com/apache/spark/assets/15246973/58a86548-718b-4115-8b4b-7a6dce2bbfcc";>
- After - (mariadb jdbc driver: 3.4.0):
<img width="1240" alt="image"
src="https://github.com/apache/spark/assets/15246973/6d14d445-8985-48cf-96a9-dcd13b9a945b";>
- Summary
the data types obtained from the `underlying meta` are different
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