Midium: pgsql: Support multiple synchronous standby #1078
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"sync_num" defines the number of synchronous standby nodes.
…chronous_standby_names in rep_mode.conf Corresponding to the syntax of priority based multiple synchronous replication. "synchronous_standby_names = 'sync_num (node_1, node_2, ..., node_n)'"
…er score for multiple "SYNC" slaves. Set the weight for master score to distinguish some "SYNC" state slaves.
…ctedly When failover occures in multiple synchronous replication, the temporary attribute "$PGSQL_XLOG_LOC_NAME" may remain in the low priority SYNC node.
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