Package org.apache.derby.iapi.sql.dictionary

Examples of org.apache.derby.iapi.sql.dictionary.IndexRowGenerator.numberOfOrderedColumns()

460
461
462
463
464
465
466
467
468
469
470
                IndexRowGenerator irg = cds[i].getIndexDescriptor();

                // Skip single-column unique indexes unless we're told not to,
                // or we are running in soft-upgrade-mode on a pre 10.9 db.
                if (skipDisposableStats) {
                    if (irg.isUnique() && irg.numberOfOrderedColumns() == 1) {
                        conglomerateNumber[i] = -1;
                        continue;
                    }
                }
          
View Full Code Here
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
                    // statistics for single-column unique indexes, we
                    // should improve the selectivity of such an index
                    // when the index is being considered by the optimizer.
                    IndexRowGenerator irg = cd.getIndexDescriptor();
                    if (irg.isUnique()
                            && irg.numberOfOrderedColumns() == 1
                            && startStopPredCount == 1) {
                        statStartStopSelectivity = (1/(double)baseRowCount());
                    }
                }
            }
View Full Code Here
460
461
462
463
464
465
466
467
468
469
470
                IndexRowGenerator irg = cds[i].getIndexDescriptor();

                // Skip single-column unique indexes unless we're told not to,
                // or we are running in soft-upgrade-mode on a pre 10.9 db.
                if (skipDisposableStats) {
                    if (irg.isUnique() && irg.numberOfOrderedColumns() == 1) {
                        conglomerateNumber[i] = -1;
                        continue;
                    }
                }
          
View Full Code Here
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
                    // statistics for single-column unique indexes, we
                    // should improve the selectivity of such an index
                    // when the index is being considered by the optimizer.
                    IndexRowGenerator irg = cd.getIndexDescriptor();
                    if (irg.isUnique()
                        && irg.numberOfOrderedColumns() == 1
                        && startStopPredCount == 1) {
                            statStartStopSelectivity =
                                (double)(1/(double)baseRowCount());
                    }
                }
View Full Code Here
446
447
448
449
450
451
452
453
454
455
456
                }
                IndexRowGenerator irg = cds[i].getIndexDescriptor();
                // Skip single-column unique indexes unless we're told not to,
                // or we are running in soft-upgrade-mode on a pre 10.9 db.
                if (skipDisposableStats) {
                    if (irg.isUnique() && irg.numberOfOrderedColumns() == 1) {
                        conglomerateNumber[i] = -1;
                        continue;
                    }
                }
          
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.