cryptoe commented on code in PR #18042:
URL: https://github.com/apache/druid/pull/18042#discussion_r2113554618
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processing/src/main/java/org/apache/druid/query/planning/PreJoinableClause.java:
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@@ -64,6 +68,29 @@ public DataSource getDataSource()
return dataSource;
}
+ /**
+ * If the data source is a {@link RestrictedDataSource} with a {@link
NoRestrictionPolicy}, unwraps it to a table and return.
+ * <p>
+ * This is a temporary workaround to allow the planner to work with {@link
RestrictedDataSource} as the right-side join.
+ */
+ public DataSource maybeUnwrapRestrictedDataSource()
+ {
+ if (dataSource instanceof RestrictedDataSource) {
+ RestrictedDataSource restricted = (RestrictedDataSource) dataSource;
+ if (restricted.getPolicy() instanceof NoRestrictionPolicy) {
+ return restricted.getBase();
+ } else {
+ throw new QueryUnsupportedException(StringUtils.format(
Review Comment:
Should this be a different error like
https://github.com/apache/druid/blob/da0b404aa214494c3fa1ed24d8b0b2ff49cac331/processing/src/main/java/org/apache/druid/error/DruidException.java#L166
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