pgaref commented on a change in pull request #2640:
URL: https://github.com/apache/hive/pull/2640#discussion_r723552123
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/ddl/table/storage/concatenate/AlterTableConcatenateAnalyzer.java
##########
@@ -73,13 +73,19 @@ protected void analyzeCommand(TableName tableName,
Map<String, String> partition
if (AcidUtils.isTransactionalTable(table)) {
compactAcidTable(tableName, partitionSpec);
} else {
+
// non-native and non-managed tables are not supported as MoveTask
requires filenames to be in specific format,
// violating which can cause data loss
if (table.isNonNative()) {
throw new
SemanticException(ErrorMsg.CONCATENATE_UNSUPPORTED_TABLE_NON_NATIVE.getMsg());
}
+
if (table.getTableType() != TableType.MANAGED_TABLE) {
- throw new
SemanticException(ErrorMsg.CONCATENATE_UNSUPPORTED_TABLE_NOT_MANAGED.getMsg());
+ // Enable concatenate for external tables if config is set.
+ if (!conf.getBoolVar(ConfVars.ENABLE_CONCATENATE_FOR_EXTERNAL_TABLES)
Review comment:
Thanks
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