sankarh commented on a change in pull request #579: HIVE-21109 : Support stats
replication for ACID tables.
URL: https://github.com/apache/hive/pull/579#discussion_r269081532
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File path: ql/src/java/org/apache/hadoop/hive/ql/exec/DDLTask.java
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@@ -2689,7 +2689,19 @@ private int alterTable(Hive db, AlterTableDesc
alterTbl) throws HiveException {
} else {
// Note: this is necessary for UPDATE_STATISTICS command, that
operates via ADDPROPS (why?).
// For any other updates, we don't want to do txn check on
partitions when altering table.
- boolean isTxn = alterTbl.getPartSpec() != null && alterTbl.getOp() ==
AlterTableTypes.ADDPROPS;
+ boolean isTxn = false;
+ if (alterTbl.getPartSpec() != null && alterTbl.getOp() ==
AlterTableTypes.ADDPROPS) {
+ // ADDPROPS is used to add repl.last.id during replication. That's
not a transactional
+ // change.
+ Map<String, String> props = alterTbl.getProps();
+ if (props.size() <= 1 &&
props.get(ReplicationSpec.KEY.CURR_STATE_ID.toString()) != null) {
Review comment:
ReplUtils.REPL_CHECKPOINT_KEY is another prop we set it in repl flow which
is not transactional. This check doesn't seems to be clean as in future we
might add more such alters in repl flow. Can we check
replicationSpec.isReplicationScope instead or another flag in AlterTableDesc to
skip this?
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