nsivabalan commented on a change in pull request #3137:
URL: https://github.com/apache/hudi/pull/3137#discussion_r657598480
##
File path:
hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/hudi/DefaultSource.scala
##
@@ -213,11 +214,27 @@ class DefaultSource extends RelationProvider
classOf[HoodieROTablePathFilter],
classOf[org.apache.hadoop.fs.PathFilter])
+ val specifySchema = if (schema == null) {
+// Load the schema from the commit meta data.
+// Here we should specify the schema to the latest commit schema since
+// the table schema evolution.
+val schemaUtil = new TableSchemaResolver(metaClient)
Review comment:
can we name the variable as "tableSchemaResolver".
##
File path:
hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/hudi/DefaultSource.scala
##
@@ -213,11 +214,27 @@ class DefaultSource extends RelationProvider
classOf[HoodieROTablePathFilter],
classOf[org.apache.hadoop.fs.PathFilter])
+ val specifySchema = if (schema == null) {
+// Load the schema from the commit meta data.
+// Here we should specify the schema to the latest commit schema since
+// the table schema evolution.
+val schemaUtil = new TableSchemaResolver(metaClient)
+try {
+ Some(SchemaConverters.toSqlType(schemaUtil.getTableAvroSchema)
+.dataType.asInstanceOf[StructType])
+} catch {
+ case _: Throwable =>
+None // If there is no commit in the table, we can not get the
schema
+ // with schemaUtil, return None here.
+}
+ } else {
+None
Review comment:
shouldn't this be Option.of(schema) ?
##
File path:
hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/hudi/DefaultSource.scala
##
@@ -213,11 +214,27 @@ class DefaultSource extends RelationProvider
classOf[HoodieROTablePathFilter],
classOf[org.apache.hadoop.fs.PathFilter])
+ val specifySchema = if (schema == null) {
+// Load the schema from the commit meta data.
+// Here we should specify the schema to the latest commit schema since
+// the table schema evolution.
+val schemaUtil = new TableSchemaResolver(metaClient)
+try {
+ Some(SchemaConverters.toSqlType(schemaUtil.getTableAvroSchema)
Review comment:
Ideally getTableAvroSchema should return Option and callers
should check if present and proceed accordingly. But in the interest of
unblocking others, I am ok with this change.
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