Greenplum 排序算法46 ● Motion的Receiver需要接收多个Sender的数据,虽然每个Sender的数据保证 有序,但Receiver端也需要保证数据全局有序。 Sorted Motion 1 4 7 8 2 3 6 9 1 4 2 3 Sender1 Sender2 Receiver1 47 ● 首先读取每个Sender的第一个元素,之后在Receiver端进行归并排序 Sorted0 码力 | 52 页 | 2.05 MB | 1 年前3
PostgreSQL 14.10 Documentations View ................................................................. 819 28.16. pg_stat_wal_receiver View ........................................................................... 820 28.17. pg_stat_subscription pg_stat_replication_slots ........................................................ 819 28.2.6. pg_stat_wal_receiver .................................................................. 820 28.2.7. pg_stat_subscription set in the primary_conninfo setting; the default is the setting of cluster_name if set, else wal- receiver. For logical replication, this can be set in the connection information of the subscription, and0 码力 | 3032 页 | 13.27 MB | 1 年前3
PostgreSQL 14.10 Documentationpg_stat_replication_slots View ........................................................... 781 28.16. pg_stat_wal_receiver View ..................................................................... 782 28.17. pg_stat_subscription pg_stat_replication_slots ................................................... 781 28.2.6. pg_stat_wal_receiver ............................................................. 782 28.2.7. pg_stat_subscription the postgresql.conf file or on the server command line. If this parameter is changed while the WAL receiver process is running, that process is signaled to shut down and expected to restart with the new setting0 码力 | 2871 页 | 13.38 MB | 1 年前3
PostgreSQL 13.13 DocumentationView ....................................................................... 754 27.15. pg_stat_wal_receiver View ..................................................................... 756 27.16. pg_stat_subscription pg_stat_replication ............................................................... 754 27.2.5. pg_stat_wal_receiver ............................................................. 756 27.2.6. pg_stat_subscription the postgresql.conf file or on the server command line. If this parameter is changed while the WAL receiver process is running, that process is signaled 591 Server Configuration to shut down and expected0 码力 | 2782 页 | 13.00 MB | 1 年前3
PostgreSQL 13.14 Documentation........................................................................ 795 27.15. pg_stat_wal_receiver View ........................................................................... 797 27.16. pg_stat_subscription pg_stat_replication .................................................................... 795 27.2.5. pg_stat_wal_receiver .................................................................. 797 27.2.6. pg_stat_subscription set in the primary_conninfo setting; the default is the setting of cluster_name if set, else wal- receiver. For logical replication, this can be set in the connection information of the subscription, and0 码力 | 2940 页 | 12.89 MB | 1 年前3
PostgreSQL 15.5 Documentationpg_stat_replication_slots View ........................................................... 790 28.16. pg_stat_wal_receiver View ..................................................................... 791 28.17. pg_stat_recovery_prefetch pg_stat_replication_slots ................................................... 790 28.2.6. pg_stat_wal_receiver ............................................................. 791 28.2.7. pg_stat_recovery_prefetch the postgresql.conf file or on the server command line. If this parameter is changed while the WAL receiver process is running, that process is signaled 618 Server Configuration to shut down and expected0 码力 | 2910 页 | 13.60 MB | 1 年前3
PostgreSQL 15.5 Documentations View ................................................................. 829 28.16. pg_stat_wal_receiver View ........................................................................... 830 28.17. pg_ pg_stat_replication_slots ........................................................ 829 28.2.6. pg_stat_wal_receiver .................................................................. 830 28.2.7. pg_stat_recovery_prefetch set in the primary_conninfo setting; the default is the setting of cluster_name if set, else wal- receiver. For logical replication, this can be set in the connection information of the subscription, and0 码力 | 3073 页 | 13.49 MB | 1 年前3
PostgreSQL 16.1 Documentations View ................................................................. 857 28.16. pg_stat_wal_receiver View ........................................................................... 858 28.17. pg_ pg_stat_replication_slots ........................................................ 857 28.2.6. pg_stat_wal_receiver .................................................................. 858 28.2.7. pg_stat_recovery_prefetch set in the primary_conninfo setting; the default is the setting of cluster_name if set, else wal- receiver. For logical replication, this can be set in the connection information of the subscription, and0 码力 | 3133 页 | 14.10 MB | 1 年前3
PostgreSQL 16.1 Documentationpg_stat_replication_slots View ........................................................... 815 28.16. pg_stat_wal_receiver View ..................................................................... 816 28.17. pg_stat_recovery_prefetch pg_stat_replication_slots ................................................... 815 28.2.6. pg_stat_wal_receiver ............................................................. 816 28.2.7. pg_stat_recovery_prefetch the postgresql.conf file or on the server command line. If this parameter is changed while the WAL receiver process is running, that process is signaled 634 Server Configuration to shut down and expected0 码力 | 2974 页 | 14.22 MB | 1 年前3
PostgreSQL 17beta1 A4 Documentation................................ 839 xxv PostgreSQL 17beta1 Documentation 27.16. pg_stat_wal_receiver View ..................................................................... 840 27.17. pg_stat_recovery_prefetch pg_stat_replication_slots ................................................... 839 27.2.6. pg_stat_wal_receiver ............................................................. 840 27.2.7. pg_stat_recovery_prefetch the postgresql.conf file or on the server command line. If this parameter is changed while the WAL receiver process is running, that process is signaled to shut down and expected to restart with the new setting0 码力 | 3017 页 | 14.45 MB | 1 年前3
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