lirui-apache commented on a change in pull request #12108:
URL: https://github.com/apache/flink/pull/12108#discussion_r426145775
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File path:
flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/table/catalog/hive/HiveCatalog.java
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@@ -484,18 +512,24 @@ public void alterTable(ObjectPath tablePath,
CatalogBaseTable newCatalogTable, b
existingTable.getClass().getName(),
newCatalogTable.getClass().getName()));
}
- Table newTable = instantiateHiveTable(tablePath,
newCatalogTable, hiveConf);
-
- // client.alter_table() requires a valid location
- // thus, if new table doesn't have that, it reuses location of
the old table
- if (!newTable.getSd().isSetLocation()) {
-
newTable.getSd().setLocation(hiveTable.getSd().getLocation());
+ boolean isGeneric = isGenericForGet(hiveTable.getParameters());
+ if (isGeneric) {
+ hiveTable = alterTableViaCatalogBaseTable(tablePath,
newCatalogTable, hiveTable);
+ } else {
+ AlterTableOp op =
extractAlterTableOp(newCatalogTable.getOptions());
Review comment:
I can extract some methods to the util class, but it's difficulty to
move all of them. The `alterTableViaProperties` needs to access the HMS client
to do the cascade ALTER COLUMNS. So I don't think we should make it static.
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