@Override
public RecordSchema getRowSchema() {
Field[] fields = new Field[columns.size()];
for (int i = 0; i < fields.length; i++) {
SqlColumnExpr c = columns.get(i);
fields[i] = new Field(new JsonString(c.id), c.getSchema(), false);
}
return new RecordSchema(fields, null);
}
@Override
public void resolveColumns(Stack<SqlTableImport> context) throws SQLException {
for (SqlTableImport f : from) {
f.table.resolveColumns(context);
if (f.alias == null) {
f.alias = "i" + context.size();
}
context.push(f);
}
if (where != null) {
where.resolveColumns(context);
}
for (SqlColumnExpr c : columns) {
c.resolveColumns(context);
}
for (int i = from.size(); i > 0; i--) {
context.pop();
}
}
