pengzhiwei2018 commented on a change in pull request #2283:
URL: https://github.com/apache/hudi/pull/2283#discussion_r589890569
##########
File path:
hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/hudi/HoodieSparkSqlWriter.scala
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@@ -378,11 +389,75 @@ private[hudi] object HoodieSparkSqlWriter {
hiveSyncConfig.autoCreateDatabase =
parameters.get(HIVE_AUTO_CREATE_DATABASE_OPT_KEY).exists(r => r.toBoolean)
hiveSyncConfig.decodePartition =
parameters.getOrElse(URL_ENCODE_PARTITIONING_OPT_KEY,
DEFAULT_URL_ENCODE_PARTITIONING_OPT_VAL).toBoolean
+ hiveSyncConfig.tableProperties =
parameters.getOrElse(HIVE_TABLE_PROPERTIES, null)
+ hiveSyncConfig.serdeProperties = createSqlTableSerdeProperties(parameters,
basePath.toString,
+ hiveSyncConfig.partitionFields.size())
hiveSyncConfig
}
- private def metaSync(parameters: Map[String, String],
- basePath: Path,
+ /**
+ * Add Spark Sql related table properties to the HIVE_TABLE_PROPERTIES.
+ * @param sqlConf
+ * @param schema
+ * @param parameters
+ * @return A new parameters added the HIVE_TABLE_PROPERTIES property.
+ */
+ private def addSqlTableProperties(sqlConf: SQLConf, schema: StructType,
+ parameters: Map[String, String]):
Map[String, String] = {
+ // Convert the schema and partition info used by spark sql to hive table
properties.
+ // The following code refers to the spark code in
+ //
https://github.com/apache/spark/blob/master/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala
+
+ val partitionSet = parameters(HIVE_PARTITION_FIELDS_OPT_KEY)
+ .split(",").map(_.trim).filter(!_.isEmpty).toSet
+ val threshold = sqlConf.getConf(SCHEMA_STRING_LENGTH_THRESHOLD)
+
+ val (partitionCols, dataCols) = schema.partition(c =>
partitionSet.contains(c.name))
+ val reOrderedType = StructType(dataCols ++ partitionCols)
+ val schemaParts = reOrderedType.json.grouped(threshold).toSeq
+
+ var properties = Map(
+ "spark.sql.sources.provider" -> "hudi",
+ "spark.sql.sources.schema.numParts" -> schemaParts.size.toString
Review comment:
Spark need this properties when load the meta data from the hive meta
store.So we should store them there.
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