postgresql/contrib/dbmirror/MirrorSetup.sql

61 lines
1.4 KiB
PL/PgSQL

BEGIN;
SET autocommit TO 'on';
CREATE FUNCTION "recordchange" () RETURNS trigger AS
'$libdir/pending.so', 'recordchange' LANGUAGE 'C';
CREATE TABLE dbmirror_MirrorHost (
MirrorHostId serial not null,
SlaveName varchar NOT NULL,
PRIMARY KEY(MirrorHostId)
);
CREATE TABLE dbmirror_Pending (
SeqId serial,
TableName Name NOT NULL,
Op character,
XID int4 NOT NULL,
PRIMARY KEY (SeqId)
);
CREATE INDEX "dbmirror_Pending_XID_Index" ON dbmirror_Pending (XID);
CREATE TABLE dbmirror_PendingData (
SeqId int4 NOT NULL,
IsKey bool NOT NULL,
Data varchar,
PRIMARY KEY (SeqId, IsKey) ,
FOREIGN KEY (SeqId) REFERENCES dbmirror_Pending (SeqId) ON UPDATE CASCADE ON DELETE CASCADE
);
CREATE TABLE dbmirror_MirroredTransaction (
XID int4 NOT NULL,
LastSeqId int4 NOT NULL,
MirrorHostId int4 NOT NULL,
PRIMARY KEY (XID,MirrorHostId),
FOREIGN KEY (MirrorHostId) REFERENCES dbmirror_MirrorHost (MirrorHostId) ON UPDATE CASCADE ON DELETE CASCADE,
FOREIGN KEY (LastSeqId) REFERENCES dbmirror_Pending (SeqId) ON UPDATE
CASCADE ON DELETE CASCADE
);
UPDATE pg_proc SET proname='nextval_pg' WHERE proname='nextval';
CREATE FUNCTION pg_catalog.nextval(text) RETURNS int8 AS
'/usr/local/postgresql-7.4/lib/pending.so', 'nextval' LANGUAGE 'C' STRICT;
UPDATE pg_proc set proname='setval_pg' WHERE proname='setval';
CREATE FUNCTION pg_catalog.setval(text,int4) RETURNS int8 AS
'/usr/local/postgresql-7.4/lib/pending.so', 'setval' LANGUAGE 'C' STRICT;
COMMIT;