VMware Tanzu Greenplum v6.20 DocumentationRunning Queries 1549 Additional Information 1550 About the Updatability Option 1550 About the Cost Estimation Options 1550 About Connection Management 1550 About Transaction Management 1550 Known Issues being handled correctly. 180241036 : In some cases, the Query Optimizer generated an incorrect cardinality estimate when a predicate contained an ALL operator. This issue is resolved. Cluster Management Incorrectly estimating cardinality for casted columns resulted in a bad join order, which could lead to a query that did not finish. This issue was resolved by updating the cardinality estimation model when the0 码力 | 1988 页 | 20.25 MB | 1 年前3
VMware Greenplum 6 DocumentationRunning Queries 1839 Additional Information 1840 About the Updatability Option 1840 About the Cost Estimation Options 1840 About Connection Management 1840 About Transaction Management 1840 About Using Query Processing N/A Resolves an issue where queries ran slowly due to partition table cardinality mis-estimation. Release 6.27.0 Release Date: 2024-04-05 VMware Greenplum 6.27.0 is a minor release being handled correctly. 180241036 In some cases, the Query Optimizer generated an incorrect cardinality estimate when a predicate contained an ALL operator. This issue is resolved. Cluster Management0 码力 | 2445 页 | 18.05 MB | 1 年前3
VMware Tanzu Greenplum v6.21 DocumentationRunning Queries 1549 Additional Information 1550 About the Updatability Option 1550 About the Cost Estimation Options 1550 About Connection Management 1550 About Transaction Management 1550 Known Issues being handled correctly. 180241036 In some cases, the Query Optimizer generated an incorrect cardinality estimate when a predicate contained an ALL operator. This issue is resolved. Cluster Management Incorrectly estimating cardinality for casted columns resulted in a bad join order, which could lead to a query that did not finish. This issue was resolved by updating the cardinality estimation model when the0 码力 | 2025 页 | 33.54 MB | 1 年前3
VMware Greenplum 6 DocumentationRunning Queries 1808 Additional Information 1808 About the Updatability Option 1808 About the Cost Estimation Options 1808 About Connection Management 1809 About Transaction Management 1809 Known Issues Documentation VMware, Inc 170 180241036 In some cases, the Query Optimizer generated an incorrect cardinality estimate when a predicate contained an ALL operator. This issue is resolved. Cluster Management clause only when all columns come from the same derived table. 31448 Incorrectly estimating cardinality for casted columns resulted in a bad join order, which could VMware Greenplum 6 Documentation0 码力 | 2374 页 | 44.90 MB | 1 年前3
VMware Tanzu Greenplum v6.23 DocumentationRunning Queries 1759 Additional Information 1759 About the Updatability Option 1759 About the Cost Estimation Options 1759 About Connection Management 1760 About Transaction Management 1760 Known Issues being handled correctly. 180241036 In some cases, the Query Optimizer generated an incorrect cardinality estimate when a predicate contained an ALL operator. This issue is resolved. Cluster Management Incorrectly estimating cardinality for casted columns resulted in a bad join order, which could lead to a query that did not finish. This issue was resolved by updating the cardinality estimation model when the0 码力 | 2298 页 | 40.94 MB | 1 年前3
VMware Tanzu Greenplum 6 DocumentationRunning Queries 1753 Additional Information 1753 About the Updatability Option 1753 About the Cost Estimation Options 1753 About Connection Management 1753 About Transaction Management 1754 Known Issues being handled correctly. 180241036 In some cases, the Query Optimizer generated an incorrect cardinality estimate when a predicate contained an ALL operator. This issue is resolved. Cluster Management Incorrectly estimating cardinality for casted columns resulted in a bad join order, which could lead to a query that did not finish. This issue was resolved by updating the cardinality estimation model when the0 码力 | 2311 页 | 17.58 MB | 1 年前3
VMware Greenplum v6.25 DocumentationRunning Queries 1799 Additional Information 1799 About the Updatability Option 1799 About the Cost Estimation Options 1799 About Connection Management 1799 About Transaction Management 1800 About Using being handled correctly. 180241036 In some cases, the Query Optimizer generated an incorrect cardinality estimate when a predicate contained an ALL operator. This issue is resolved. Cluster Management Incorrectly estimating cardinality for casted columns resulted in a bad join order, which could lead to a query that did not finish. This issue was resolved by updating the cardinality estimation model when the0 码力 | 2400 页 | 18.02 MB | 1 年前3
VMware Greenplum v6.19 Documentationbeing handled correctly. 180241036 : In some cases, the Query Optimizer generated an incorrect cardinality estimate when a predicate contained an ALL operator. This issue is resolved. Cluster Management Incorrectly estimating cardinality for casted columns resulted in a bad join order, which could lead to a query that did not finish. This issue was resolved by updating the cardinality estimation model when the that skips authentication checks. 31223 - Query Optimizer : Fixed optimizer issue with cardinality estimation for point queries on CDOUBLE types, such as timestamp. 31220 - Data Flow : Resolved an0 码力 | 1972 页 | 20.05 MB | 1 年前3
VMware Greenplum v6.18 DocumentationIncorrectly estimating cardinality for casted columns resulted in a bad join order, which could lead to a query that did not finish. This issue was resolved by updating the cardinality estimation model when the that skips authentication checks. 31223 - Query Optimizer : Fixed optimizer issue with cardinality estimation for point queries on CDOUBLE types, such as timestamp. 31220 - Data Flow : Resolved an size increased for a query on a larger width table because Greenplum Database overestimated row cardinality when the query specified multiple predicates that included distribution keys. 30512 - MPP: Dispatch0 码力 | 1959 页 | 19.73 MB | 1 年前3
VMware Greenplum 7 DocumentationOptions 1645 About the Updatability Option 1646 About the Import Options 1646 About the Cost Estimation Options 1646 About Connection Management 1646 About Transaction Management 1646 Remote Query When Not to Use Bitmap Indexes Do not use bitmap indexes for unique columns or columns with high cardinality data, such as customer names or phone numbers. The performance gains and disk space advantages some of the base tables with different distribution keys. 5. Check the cardinality of the join keys. If they have low cardinality, try to rewrite the query with different joining columns or additional0 码力 | 2221 页 | 14.19 MB | 1 年前3
共 13 条
- 1
- 2













