zabetak commented on code in PR #3936:
URL: https://github.com/apache/hive/pull/3936#discussion_r1073576224
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ql/src/java/org/apache/hadoop/hive/ql/ddl/view/materialized/alter/rewrite/AlterMaterializedViewRewriteAnalyzer.java:
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@@ -68,10 +68,12 @@ public void analyzeInternal(ASTNode root) throws
SemanticException {
Table materializedViewTable = getTable(tableName, true);
// One last test: if we are enabling the rewrite, we need to check that
query
- // only uses transactional (MM and ACID) tables
+ // only uses transactional (MM and ACID and Iceberg) tables
if (rewriteEnable) {
for (SourceTable sourceTable :
materializedViewTable.getMVMetadata().getSourceTables()) {
- if (!AcidUtils.isTransactionalTable(sourceTable.getTable())) {
+ Table table = new Table(sourceTable.getTable());
+ if (!AcidUtils.isTransactionalTable(sourceTable.getTable()) &&
+ !(table.isNonNative() &&
table.getStorageHandler().areSnapshotsSupported())) {
throw new SemanticException("Automatic rewriting for materialized
view cannot be enabled if the " +
"materialized view uses non-transactional tables");
}
Review Comment:
Do we consider an Iceberg table as transactional? Should we change the
message to something more general. For example:
`Cannot enable materialized view rewriting cause view uses unsupported
tables`
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