deniskuzZ commented on a change in pull request #1532:
URL: https://github.com/apache/hive/pull/1532#discussion_r498072413
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/ddl/table/misc/truncate/TruncateTableAnalyzer.java
##########
@@ -112,23 +113,27 @@ private void checkTruncateEligibility(ASTNode ast,
ASTNode root, String tableNam
private void addTruncateTableOutputs(ASTNode root, Table table, Map<String,
String> partitionSpec)
throws SemanticException {
+ boolean shared = AcidUtils.isTransactionalTable(table) &&
Review comment:
could we rename local var to truncateFiles or something (same as below)
##########
File path:
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
##########
@@ -3357,6 +3355,52 @@ private void truncateTableInternal(String dbName, String
tableName, List<String>
}
}
+ /**
+ * Add an empty baseDir with a truncate metadatafile
+ * @param location
+ * @param writeId
+ * @param fs
+ * @throws Exception
+ */
+ private void addTruncateBaseFile(Path location, long writeId, FileSystem
fs) throws Exception {
+ Path basePath = new Path(location, AcidConstants.baseDir(writeId));
+ fs.mkdirs(basePath);
+ // We can not leave the folder empty, otherwise it will be skipped at
some file listing in AcidUtils
+ // No need for a data file, a simple metadata is enough
Review comment:
Do you think it would make sense to move metaFile creation under
MetaDataFile class, not sure however it should be under AcidConstants?
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/io/AcidUtils.java
##########
@@ -114,16 +114,16 @@
public class AcidUtils {
// This key will be put in the conf file when planning an acid operation
public static final String CONF_ACID_KEY = "hive.doing.acid";
- public static final String BASE_PREFIX = "base_";
+ public static final String BASE_PREFIX = AcidConstants.BASE_PREFIX;
Review comment:
could we remove those and reference constants from AcidConstants directly
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