public class OptimizerUtil extends Object
| Constructor and Description |
|---|
OptimizerUtil() |
| Modifier and Type | Method and Description |
|---|---|
protected static void |
collectJoinArgs(TupleExpr node,
List<TupleExpr> joinArgs)
Collect join arguments by descending the query tree (recursively).
|
static NJoin |
flattenJoin(Join join,
QueryInfo queryInfo)
Flatten the join to one layer, i.e.
|
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