xiarixiaoyao commented on a change in pull request #4910:
URL: https://github.com/apache/hudi/pull/4910#discussion_r840183476
##########
File path:
hudi-spark-datasource/hudi-spark-common/src/main/scala/org/apache/hudi/HoodieSparkSqlWriter.scala
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@@ -315,6 +329,32 @@ object HoodieSparkSqlWriter {
processedRecord
}
+ def addSchemaEvolutionParameters(parameters: Map[String, String],
internalSchemaOpt: Option[InternalSchema]): Map[String, String] = {
+ val schemaEvolutionEnable = if (internalSchemaOpt.isDefined) "true" else
"false"
+ parameters ++ Map(HoodieWriteConfig.INTERNAL_SCHEMA_STRING.key() ->
SerDeHelper.toJson(internalSchemaOpt.getOrElse(null)),
+ HoodieWriteConfig.SCHEMA_EVOLUTION_ENABLE.key() -> schemaEvolutionEnable)
+ }
+
+ /**
+ * get latest internalSchema from table
+ *
+ * @param fs instance of FileSystem.
+ * @param basePath base path.
+ * @param sparkContext instance of spark context.
+ * @param schema incoming record's schema.
+ * @return Pair of(boolean, table schema), where first entry will be true
only if schema conversion is required.
+ */
+ def getLatestTableInternalSchema(fs: FileSystem, basePath: Path,
sparkContext: SparkContext): Option[InternalSchema] = {
+ if (FSUtils.isTableExists(basePath.toString, fs)) {
Review comment:
agree
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