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fix: support UNCACHE TABLE IF EXISTS in Spark 3.3+ #98

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fix: support UNCACHE TABLE IF EXISTS in Spark 3.3+ #98

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042d784
fix: support UNCACHE TABLE IF EXISTS in Spark 3.3+
yuanoOo Feb 4, 2026
731cc40
test: add unit test for UNCACHE TABLE IF EXISTS functionality
yuanoOo Feb 4, 2026
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5 changes: 5 additions & 0 deletions ...onnector-oceanbase-base/src/main/scala/com/oceanbase/spark/catalog/OceanBaseCatalog.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ import com.oceanbase.spark.utils.OBJdbcUtils

import org.apache.spark.internal.Logging
import org.apache.spark.sql.catalyst.SQLConfHelper
import org.apache.spark.sql.catalyst.analysis.NoSuchTableException
import org.apache.spark.sql.connector.catalog._
import org.apache.spark.sql.connector.expressions.Transform
import org.apache.spark.sql.types.StructType
Expand Down Expand Up @@ -114,6 +115,10 @@ class OceanBaseCatalog

override def loadTable(ident: Identifier): Table = {
checkNamespace(ident.namespace())
// Check if table exists first to support UNCACHE TABLE IF EXISTS in Spark 3.3+
if (!tableExists(ident)) {
throw new NoSuchTableException(ident)
}
val config = genNewOceanBaseConfig(this.config, ident)
try {
val schema = resolveTable(config, dialect)
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32 changes: 32 additions & 0 deletions ...rk-connector-oceanbase-base/src/test/scala/com/oceanbase/spark/OBCatalogMySQLITCase.scala
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Expand Up @@ -152,6 +152,38 @@ class OBCatalogMySQLITCase extends OceanBaseMySQLTestBase {
session.stop()
}

@Test
def testUncacheTableIfExists(): Unit = {
val session = SparkSession
.builder()
.master("local[*]")
.config("spark.sql.catalog.ob", OB_CATALOG_CLASS)
.config("spark.sql.catalog.ob.url", getJdbcUrl)
.config("spark.sql.catalog.ob.username", getUsername)
.config("spark.sql.catalog.ob.password", getPassword)
.config("spark.sql.catalog.ob.schema-name", getSchemaName)
.getOrCreate()

session.sql("use ob;")
insertTestData(session, "products")

// Test UNCACHE TABLE IF EXISTS with existing table - should succeed
Assertions.assertDoesNotThrow(new ThrowingSupplier[Unit] {
override def get(): Unit = {
session.sql("UNCACHE TABLE IF EXISTS products")
}
})

// Test UNCACHE TABLE IF EXISTS with non-existing table - should not throw exception
Assertions.assertDoesNotThrow(new ThrowingSupplier[Unit] {
override def get(): Unit = {
session.sql("UNCACHE TABLE IF EXISTS non_existing_table")
}
})

session.stop()
}

@Test
def testCatalogOp(): Unit = {
val session = SparkSession
Expand Down