Method reset

fe/src/main/java/org/apache/impala/analysis/FromClause.java:193–222

()

  }

  public void reset() {
    for (int i = 0; i < size(); ++i) {
      TableRef origTblRef = get(i);
      if (origTblRef instanceof UnpivotTableRef || origTblRef instanceof PivotTableRef) {
        // For UnpivotTableRef and PivotTableRef, clone() creates an unanalyzed clone and
        // can be used for reset.
        set(i, origTblRef.clone());
        continue;
      }
      if (origTblRef.isResolved() && !(origTblRef instanceof InlineViewRef)) {
        // Replace resolved table refs with unresolved ones.
        TableRef newTblRef = new TableRef(origTblRef);
        // Use the fully qualified raw path to preserve the original resolution.
        // Otherwise, non-fully qualified paths might incorrectly match a local view.
        // TODO(IMPALA-9286): This full qualification preserves analysis state which is
        // contrary to the intended semantics of reset(). We could address this issue by
        // changing the WITH-clause analysis to register local views that have
        // fully-qualified table refs, and then remove the full qualification here.
        Path oldPath = origTblRef.getResolvedPath();
        if (oldPath.getRootDesc() == null
            || !oldPath.getRootDesc().getType().isCollectionStructType()) {
          newTblRef.rawPath_ = oldPath.getFullyQualifiedRawPath();
        }
        set(i, newTblRef);
      }
      // recurse for views
      get(i).reset();
    }
    this.analyzed_ = false;
  }

  @Override
  public final String toSql() {