private ProjectOp(List<ProjectionSpec> projections, DatabaseOp wrapped) {
super(wrapped);
for (ProjectionSpec spec : projections) {
if (!spec.getColumn().isQualified()) {
// See if there is a qualified version of this column in the wrapped
for (ColumnName wrappedColumn : wrapped.getColumns()) {
if (wrappedColumn.isQualified()
&& wrappedColumn.getColumn().equals(spec.getColumn().getColumn())) {
spec = ProjectionSpec.create(wrappedColumn);
}
}
}
this.projections.add(spec);
columnList.add(spec.getColumn());
}
// Build columns map
for (ProjectionSpec spec : this.projections) {
// Qualified names only
if (!spec.getColumn().isQualified()) continue;
if (columns.containsKey(spec.getColumn())) {
throw new IllegalArgumentException(
"Duplicate column name " + spec.getColumn() + " in projection list: " + projections);
}
columns.put(spec.getColumn(), spec);
if (columns.containsKey(spec.getColumn().getUnqualified())) {
// Mark unqualified name as ambiguous
columns.put(spec.getColumn().getUnqualified(), null);
} else {
columns.put(spec.getColumn().getUnqualified(), spec);
}
}
for (ProjectionSpec spec : this.projections) {
// Unqualified names only
if (spec.getColumn().isQualified()) continue;
if (columns.containsKey(spec.getColumn())) {
throw new IllegalArgumentException(
"Duplicate column name " + spec.getColumn() + " in projection list: " + projections);
}
columns.put(spec.getColumn(), spec);
}
for (Key key : wrapped.getUniqueKeys()) {
if (key.isContainedIn(columnList)) {
uniqueKeys.add(key);
}
}
}
