コード例 #1
0
 private void resolveColumnsAndReplaceAlias(CubeQueryContext cubeql, Set<ExprSpecContext> exprs)
     throws SemanticException {
   Set<ExprSpecContext> nestedExpressions = new LinkedHashSet<ExprSpecContext>();
   for (ExprSpecContext esc : exprs) {
     for (Map.Entry<String, Set<String>> entry : esc.getTblAliasToColumns().entrySet()) {
       if (entry.getKey().equals(CubeQueryContext.DEFAULT_TABLE)) {
         continue;
       }
       AbstractBaseTable baseTable =
           (AbstractBaseTable) cubeql.getCubeTableForAlias(entry.getKey());
       Set<String> exprCols = new HashSet<String>();
       for (String col : entry.getValue()) {
         // col is an expression
         if (baseTable.getExpressionNames().contains(col)) {
           exprCols.add(col);
         }
       }
       // get all combinations of expression replaced with inner exprs AST.
       addAllNestedExpressions(cubeql, esc, baseTable, nestedExpressions, exprCols);
     }
   }
   for (ExprSpecContext esc : nestedExpressions) {
     esc.resolveColumns(cubeql);
     esc.replaceAliasInAST(cubeql);
     for (String table : esc.getTblAliasToColumns().keySet()) {
       try {
         if (!CubeQueryContext.DEFAULT_TABLE.equalsIgnoreCase(table)
             && !srcAlias.equals(table)) {
           cubeql.addOptionalDimTable(
               table,
               null,
               false,
               null,
               false,
               esc.getTblAliasToColumns().get(table).toArray(new String[0]));
           esc.exprDims.add((Dimension) cubeql.getCubeTableForAlias(table));
         }
       } catch (HiveException e) {
         throw new SemanticException(e);
       }
     }
   }
   exprs.addAll(nestedExpressions);
 }
コード例 #2
0
 private void resolveColumnsAndAlias(CubeQueryContext cubeql) throws SemanticException {
   for (ExprSpecContext esc : allExprs) {
     esc.resolveColumns(cubeql);
     esc.replaceAliasInAST(cubeql);
     for (String table : esc.getTblAliasToColumns().keySet()) {
       try {
         if (!CubeQueryContext.DEFAULT_TABLE.equalsIgnoreCase(table)
             && !srcAlias.equals(table)) {
           cubeql.addOptionalDimTable(
               table,
               null,
               false,
               null,
               false,
               esc.getTblAliasToColumns().get(table).toArray(new String[0]));
           esc.exprDims.add((Dimension) cubeql.getCubeTableForAlias(table));
         }
       } catch (HiveException e) {
         throw new SemanticException(e);
       }
     }
   }
   resolveColumnsAndReplaceAlias(cubeql, allExprs);
 }