mirror of
https://github.com/EnterpriseDB/repmgr.git
synced 2026-03-22 22:56:29 +00:00
951c7dbd07
This will cover both the case when an entire node including repmgrd goes down, and when one PostgreSQL instance goes down but repmgrd is still up (in which case only one of the repmgrds will handle the failover).
85 lines
2.3 KiB
SQL
85 lines
2.3 KiB
SQL
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
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\echo Use "CREATE EXTENSION repmgr" to load this file. \quit
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CREATE TABLE nodes (
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node_id INTEGER PRIMARY KEY,
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upstream_node_id INTEGER NULL REFERENCES nodes (node_id) DEFERRABLE,
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active BOOLEAN NOT NULL DEFAULT TRUE,
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node_name TEXT NOT NULL,
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type TEXT NOT NULL CHECK (type IN('primary','standby','bdr')),
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location TEXT NOT NULL DEFAULT 'default',
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priority INT NOT NULL DEFAULT 100,
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conninfo TEXT NOT NULL,
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repluser VARCHAR(63) NOT NULL,
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slot_name TEXT NULL
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);
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CREATE TABLE events (
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node_id INTEGER NOT NULL,
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event TEXT NOT NULL,
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successful BOOLEAN NOT NULL DEFAULT TRUE,
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event_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
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details TEXT NULL
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);
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CREATE VIEW show_nodes AS
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SELECT n.node_id,
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n.node_name,
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un.node_name AS upstream_node_name,
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n.type,
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n.priority,
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n.conninfo
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FROM nodes n
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LEFT JOIN nodes un
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ON un.node_id = n.upstream_node_id;
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/* repmgrd functions */
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CREATE FUNCTION request_vote(INT,INT)
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RETURNS pg_lsn
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AS '$libdir/repmgr', 'request_vote'
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LANGUAGE C STRICT;
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CREATE FUNCTION get_voting_status()
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RETURNS INT
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AS '$libdir/repmgr', 'get_voting_status'
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LANGUAGE C STRICT;
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CREATE FUNCTION set_voting_status_initiated()
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RETURNS INT
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AS '$libdir/repmgr', 'set_voting_status_initiated'
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LANGUAGE C STRICT;
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CREATE FUNCTION other_node_is_candidate(INT, INT)
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RETURNS BOOL
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AS '$libdir/repmgr', 'other_node_is_candidate'
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LANGUAGE C STRICT;
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CREATE FUNCTION notify_follow_primary(INT)
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RETURNS VOID
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AS '$libdir/repmgr', 'notify_follow_primary'
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LANGUAGE C STRICT;
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CREATE FUNCTION get_new_primary()
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RETURNS INT
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AS '$libdir/repmgr', 'get_new_primary'
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LANGUAGE C STRICT;
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CREATE FUNCTION reset_voting_status()
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RETURNS VOID
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AS '$libdir/repmgr', 'reset_voting_status'
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LANGUAGE C STRICT;
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CREATE FUNCTION am_bdr_failover_handler(INT)
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RETURNS BOOL
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AS '$libdir/repmgr', 'am_bdr_failover_handler'
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LANGUAGE C STRICT;
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CREATE FUNCTION unset_bdr_failover_handler()
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RETURNS VOID
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AS '$libdir/repmgr', 'unset_bdr_failover_handler'
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LANGUAGE C STRICT;
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