chunweilei commented on a change in pull request #1467: Don't require use of
JdbcSchema in QuerySqlStatisticProvider
URL: https://github.com/apache/calcite/pull/1467#discussion_r326453046
##########
File path: core/src/main/java/org/apache/calcite/adapter/jdbc/JdbcTable.java
##########
@@ -100,6 +100,16 @@ public String toString() {
return jdbcTableType;
}
+ @Override public <C> C unwrap(Class<C> aClass) {
+ if (aClass.isInstance(jdbcSchema.getDataSource())) {
+ return aClass.cast(jdbcSchema.getDataSource());
+ } else if (aClass.isInstance(jdbcSchema.dialect)) {
+ return aClass.cast(jdbcSchema.dialect);
+ } else {
+ return super.unwrap(aClass);
+ }
+ }
+
public RelDataType getRowType(RelDataTypeFactory typeFactory) {
if (protoRowType == null) {
Review comment:
Do you open a jira ticket for this? If you do, we can discuss it there.
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