parallel processing - 大规模并行处理 master standby primary segment mirror segment 6 Pivotal Confidential–Internal Use Only 数据分布: 并行化的根基 最重要的策略和目标是均匀分布数据到各个数据节点。 43 Oct 20 2005 12 64 Oct 20 2005 111 45 Oct 20 Pivotal Confidential–Internal Use Only SELECT customer, amount FROM orders JOIN customer USING (cust_id) WHERE date=2008; 生成并行查询计划 8 Pivotal Confidential–Internal Use Only 执行并行计划 Standby Confidential–Internal Use Only 卓越的OLAP特性 列式存储 分区、压缩 高级特性 递归查询、窗口函数 集成分析 多格式、多语言 Madlib: 机器学习 数据库内并行模型训练和预测、分类 ORCA 复杂查询优化器 成熟稳定 完备生态、支撑核心生产系统 13 Pivotal Confidential–Internal Use Only 列式存储

Removed redundant PartitionSelector insertion for DML operations. Data Flow 14759 Resolved an internal error that occurred during an INSERT to an append-only table when the RETURNING clause was used 32573 Resolved an issue where Greenplum Database was throwing a “PANIC”,“XX000”,“Unexpected internal error Master process received signal SIGSEGV” error due to incorrect handling of errors in the issue where a query that included a DynamicSeqScan with a subplan failed with the error Unexpected internal error. Cluster Management 32190 Resolved an issue where gprecoverseg failed to detect than an

32573 Resolved an issue where Greenplum Database was throwing a “PANIC”,“XX000”,“Unexpected internal error Master process received signal SIGSEGV” error due to incorrect handling of errors in the issue where a query that included a DynamicSeqScan with a subplan failed with the error Unexpected internal error. Cluster Management 32190 Resolved an issue where gprecoverseg failed to detect than an pre-existing read-only transaction accessing the same table. N/A Resolved an issue where a key internal process was crashing when theree were too many simultaneous connections to the database. N/A

pre-existing read-only transaction accessing the same table. N/A Resolved an issue where a key internal process was crashing when theree were too many simultaneous connections to the database. N/A Resolved an issue where memory corruption occurred after a VACUUM command due to an internal data structure not being correctly initialized. N/A Resolved an issue where DELETE FROM queries on AO/CO partition on a table that did not have a default partition. 32458 Resolved an issue where running an internal function on a partition table caused the master Greenplum Database instance to crash. 32500 Resolved

preventing CLOG truncation during a segment upgrade. 13706 Resolves an error, FATAL: Unexpected internal error (list.c:395), that could occur when creating a plan for a correlated subquery against a partitioned user queries issued from master. 13669 Resolved an assertion failure, "FATAL" error "Unexpected internal error (vmem_tracker.c:436)","Process 399817 will wait for gp_debug_linger=120 seconds before termination by PR-13463.) n/a Preserves append-optimized options for tables without indexes when creating internal tables from query results. (Resolved by PR-13461.) n/a Backports part of recovery TAP tests that

base-vm 2112 network gp-virtual-etl-bar 2113 network gp-virtual-external 2113 network gp-virtual-internal 2113 vm 2113 vsphere 2114 VMware Greenplum 6 Documentation VMware by Broadcom 126 gpv greenplum Removed redundant PartitionSelector insertion for DML operations. Data Flow 14759 Resolved an internal error that occurred during an INSERT to an append-only table when the RETURNING clause was used 32573 : Resolved an issue where Greenplum Database was throwing a "PANIC","XX000","Unexpected internal error Master process received signal SIGSEGV" error due to incorrect handling of errors in the

base-vm 2069 network gp-virtual-etl-bar 2070 network gp-virtual-external 2070 network gp-virtual-internal 2070 vm 2071 vsphere 2071 gpv greenplum 2072 Synopsis 2072 Description 2072 Sub-commands 2072 Removed redundant PartitionSelector insertion for DML operations. Data Flow 14759 Resolved an internal error that occurred during an INSERT to an append-only table when the RETURNING clause was used 32573 : Resolved an issue where Greenplum Database was throwing a "PANIC","XX000","Unexpected internal error Master process received signal SIGSEGV" error due to incorrect handling of errors in the

reports and orphaned wait queue states which, in turn, could lead to memory corruption of certain internal tables. This issue is resolved by disabling the log_lock_waitsGUC.The log_lock_waits GUC is not Greenplum before it writes Parquet data. PXF bundles newer hive, jackson-databind, and supporting internal libraries. A PXF server running on Java 11 can now read from Hive using an external table that messages that were internal messages. This made the log file difficult to read and caused bloat in the file. This issue is resolved. GPORCA message logging has been improved and the internal messages are

reports and orphaned wait queue states which, in turn, could lead to memory corruption of certain internal tables. This issue is resolved by disabling the log_lock_waitsGUC.The log_lock_waits GUC is not Greenplum before it writes Parquet data. PXF bundles newer hive, jackson-databind, and supporting internal libraries. A PXF server running on Java 11 can now read from Hive using an external table that messages that were internal messages. This made the log file difficult to read and caused bloat in the file. This issue is resolved. GPORCA message logging has been improved and the internal messages are

you want to include this information in gp_toolkit view output, you must redefine a gp_toolkit internal view as described in Including Data for Materialized Views. 168957894 PXF The PXF Hive Connector for Greenplum Database. lib — Greenplum Database and PostgreSQL library files. sbin — Supporting/Internal scripts and programs. share — Shared files for Greenplum Database. Next Steps Creating the Data 8859 series and multiple-byte character sets such as EUC (Extended Unix Code), UTF-8, and Mule internal code. All supported character sets can be used transparently by clients, but a few are not supported