codope commented on a change in pull request #5077:
URL: https://github.com/apache/hudi/pull/5077#discussion_r832284664
##########
File path:
hudi-spark-datasource/hudi-spark/src/test/scala/org/apache/hudi/functional/TestColumnStatsIndex.scala
##########
@@ -63,6 +69,91 @@ class TestColumnStatsIndex extends HoodieClientTestBase {
cleanupSparkContexts()
}
+ @Test
+ def testMetadataColumnStatsIndex(): Unit = {
+ setTableName("hoodie_test")
+ initMetaClient()
+ val sourceJSONTablePath =
getClass.getClassLoader.getResource("index/zorder/input-table-json").toString
+ val inputDF =
+ // NOTE: Schema here is provided for validation that the input date is in
the appropriate format
+ spark.read
+ .schema(sourceTableSchema)
+ .json(sourceJSONTablePath)
+
+ val opts = Map(
+ "hoodie.insert.shuffle.parallelism" -> "4",
+ "hoodie.upsert.shuffle.parallelism" -> "4",
+ HoodieWriteConfig.TBL_NAME.key -> "hoodie_test",
+ RECORDKEY_FIELD.key -> "c1",
+ PRECOMBINE_FIELD.key -> "c1",
+ HoodieMetadataConfig.ENABLE.key -> "true",
+ HoodieMetadataConfig.ENABLE_METADATA_INDEX_COLUMN_STATS.key -> "true",
+
HoodieMetadataConfig.ENABLE_METADATA_INDEX_COLUMN_STATS_FOR_ALL_COLUMNS.key ->
"true",
+ HoodieTableConfig.POPULATE_META_FIELDS.key -> "true"
+ )
+
+ inputDF.repartition(4)
+ .write
+ .format("hudi")
+ .options(opts)
+ .option(DataSourceWriteOptions.OPERATION.key,
DataSourceWriteOptions.INSERT_OPERATION_OPT_VAL)
+ .option(HoodieStorageConfig.PARQUET_MAX_FILE_SIZE.key, 100 * 1024)
+ .mode(SaveMode.Overwrite)
+ .save(basePath)
+
+ metaClient = HoodieTableMetaClient.reload(metaClient)
+
+ val metadataTablePath =
HoodieTableMetadata.getMetadataTableBasePath(basePath)
+
+ val targetColStatsIndexColumns = Seq(
+ HoodieMetadataPayload.COLUMN_STATS_FIELD_FILE_NAME,
+ HoodieMetadataPayload.COLUMN_STATS_FIELD_MIN_VALUE,
+ HoodieMetadataPayload.COLUMN_STATS_FIELD_MAX_VALUE,
+ HoodieMetadataPayload.COLUMN_STATS_FIELD_NULL_COUNT)
+
+ val requiredMetadataIndexColumns =
+ (targetColStatsIndexColumns :+
HoodieMetadataPayload.COLUMN_STATS_FIELD_COLUMN_NAME).map(colName =>
+ s"${HoodieMetadataPayload.SCHEMA_FIELD_ID_COLUMN_STATS}.${colName}")
+
+ // Read Metadata Table's Column Stats Index into Spark's [[DataFrame]]
+ val metadataTableDF = spark.read.format("org.apache.hudi")
+
.load(s"$metadataTablePath/${MetadataPartitionType.COLUMN_STATS.getPartitionPath}")
+
+ val colStatsDF =
metadataTableDF.where(col(HoodieMetadataPayload.SCHEMA_FIELD_ID_COLUMN_STATS).isNotNull)
+ .select(requiredMetadataIndexColumns.map(col): _*)
+
+ // assert min/max for some columns
+ val minC1 =
colStatsDF.select(HoodieMetadataPayload.COLUMN_STATS_FIELD_MIN_VALUE)
Review comment:
will do.
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