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[SPARK-51588][SQL][TESTS] Validate default values handling in micro-batch writes #50351

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[SPARK-51588][SQL][TESTS] Validate default values handling in micro-batch writes #50351

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27 changes: 27 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/connector/DataSourceV2SQLSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -3786,6 +3786,33 @@ class DataSourceV2SQLSuiteV1Filter
}
}

test("micro batch streaming write with default values") {
import testImplicits._

val t = "testcat.ns.t"
withTable(t) {
withTempDir { checkpointDir =>
sql(s"CREATE TABLE $t (id INT, data STRING DEFAULT 'txt', salary INT DEFAULT -1) USING foo")

val inputData = MemoryStream[Int]
val df = inputData.toDF().toDF("id")
val query = df
.writeStream
.option("checkpointLocation", checkpointDir.getAbsolutePath)
.toTable(t)

val newData = Seq(1, 2)
inputData.addData(newData)
query.processAllAvailable()
query.stop()

checkAnswer(
sql(s"SELECT * FROM $t"),
Row(1, "txt", -1) :: Row(2, "txt", -1) :: Nil)
}
}
}

private def testNotSupportedV2Command(
sqlCommand: String,
sqlParams: String,
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