mirror of https://github.com/postgres/postgres
102 lines
2.0 KiB
MySQL
102 lines
2.0 KiB
MySQL
-- erServer
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-- Master server setup for erServer demonstration implementation
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-- (c) 2000 Vadim Mikheev, PostgreSQL Inc.
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--
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--
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-- Slave servers
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--
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drop table _RSERV_SERVERS_;
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create table _RSERV_SERVERS_
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(
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server int4, -- slave server id
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host text, -- server' host
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port int4, -- server' port
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dbase text -- db name
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);
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--
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-- Tables to sync
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--
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drop table _RSERV_TABLES_;
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create table _RSERV_TABLES_
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(
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tname name, -- table name
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cname name, -- column name
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reloid oid, -- table oid
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key int4 -- key attnum
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);
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--
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-- Log for inserts/updates/deletes to sync-ed tables
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--
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drop table _RSERV_LOG_;
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create table _RSERV_LOG_
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(
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reloid oid,
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logid int4, -- xid of last update xaction
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logtime timestamp, -- last update xaction start time
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deleted int4, -- deleted or inserted/updated
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key text --
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);
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-- This is to speedup lookup deleted tuples
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create index _RSERV_LOG_INDX_DLT_ID_ on _RSERV_LOG_ (deleted, logid);
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-- This is to speedup cleanup
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create index _RSERV_LOG_INDX_TM_ID_ on _RSERV_LOG_ (logtime, logid);
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-- This is to speedup trigger and lookup updated tuples
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create index _RSERV_LOG_INDX_REL_KEY_ on _RSERV_LOG_ (reloid, key);
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--
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-- How much each slave servers are sync-ed
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--
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drop table _RSERV_SYNC_;
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create table _RSERV_SYNC_
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(
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server int4,
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syncid int4, -- from _rserv_sync_seq_
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synctime timestamp, --
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status int4, -- prepared (0) | applied
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minid int4, -- min xid from serializable snapshot
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maxid int4, -- max xid from serializable snapshot
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active text -- list of active xactions
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);
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create index _RSERV_SYNC_INDX_SRV_ID_ on _RSERV_SYNC_ (server, syncid);
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drop sequence _rserv_sync_seq_;
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create sequence _rserv_sync_seq_;
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drop function _rserv_log_();
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CREATE FUNCTION _rserv_log_()
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RETURNS opaque
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AS '@MODULE_FILENAME@'
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LANGUAGE 'c'
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;
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drop function _rserv_sync_(int4);
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CREATE FUNCTION _rserv_sync_(int4)
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RETURNS int4
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AS '@MODULE_FILENAME@'
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LANGUAGE 'c'
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;
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drop function _rserv_debug_(int4);
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CREATE FUNCTION _rserv_debug_(int4)
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RETURNS int4
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AS '@MODULE_FILENAME@'
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LANGUAGE 'c'
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;
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