Package sql.visitors.jsql

Examples of sql.visitors.jsql.MaxSubExpressionsVisitor.visit()

228
229
230
231
232
233
234
235
236
237
238
   * For each expression from _globalProject (for now these are only from
   * SELECT clause), add the appropriate subexpressions to _exprList
   */
  private void processGlobalExprs(List<Expression> exprList) {
    final MaxSubExpressionsVisitor sev = new MaxSubExpressionsVisitor(_nt, _inputTupleSchema);
    sev.visit(_globalProject.getExprList());
    exprList.addAll(sev.getExprs());
  }

  /*
   * OrExpressions are from WHERE clause We need to project for it if they are
View Full Code Here
244
245
246
247
248
249
250
251
252
253
254
    final List<OrExpression> orList = _globalProject.getOrExprs();
    if (orList != null)
      for (final OrExpression orExpr : _globalProject.getOrExprs()) {
        final MaxSubExpressionsVisitor sev = new MaxSubExpressionsVisitor(_nt,
            _inputTupleSchema);
        sev.visit(orExpr);
        if (!sev.isAllSubsMine(orExpr)) {
          // if all of them are available, SELECT operator is already
          // done
          // (either in this component because SELECT goes before
          // PROJECT
View Full Code Here
276
277
278
279
280
281
282
283
284
285
286
    // now we find joinCondition between ancestorNames and otherCompNames
    // joinExprs is a list of EqualsTo
    final List<Expression> joinExprs = _jte.getExpressions(ancestorNames, otherCompNames);

    final MaxSubExpressionsVisitor sev = new MaxSubExpressionsVisitor(_nt, _inputTupleSchema);
    sev.visit(joinExprs);
    // we get all the subexpressions correlated to me
    final List<Expression> mineSubExprs = sev.getExprs();
    exprList.addAll(mineSubExprs);

  }
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.