private void removeProjections(
PredicateIndex<AttributeId> predicateIndex, List<List<AttributeId>> projection) {
for (List<AttributeId> projectionPath : projection) {
AttributeNode<AttributeId> node = predicateIndex.getAttributeNodeByPath(projectionPath);
node.removeProjections(this);
}
}
private int addProjections(
PredicateIndex<AttributeId> predicateIndex, List<List<AttributeId>> projection, int i) {
for (List<AttributeId> projectionPath : projection) {
AttributeNode<AttributeId> node = predicateIndex.addAttributeNodeByPath(projectionPath);
node.addProjection(this, i++);
}
return i;
}