Esempi in Java per Analyzer.registerColumnRef

Esempio n. 1

File: SlotRef.java Progetto: nimbusrepo/impala

 @Override
 public void analyze(Analyzer analyzer) throws AnalysisException {
   if (isAnalyzed) {
     return;
   }
   super.analyze(analyzer);
   desc = analyzer.registerColumnRef(tblName, col);
   type = desc.getType();
   if (!type.isSupported()) {
     throw new AnalysisException(
         "Unsupported type '" + type.toString() + "' in '" + toSql() + "'.");
   }
   numDistinctValues = desc.getStats().getNumDistinctValues();
 }