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aa731ed843
argument as a 'regclass' value instead of a text string. The frontend conversion of text string to pg_class OID is now encapsulated as an implicitly-invocable coercion from text to regclass. This provides backwards compatibility to the old behavior when the sequence argument is explicitly typed as 'text'. When the argument is just an unadorned literal string, it will be taken as 'regclass', which means that the stored representation will be an OID. This solves longstanding problems with renaming sequences that are referenced in default expressions, as well as new-in-8.1 problems with renaming such sequences' schemas or moving them to another schema. All per recent discussion. Along the way, fix some rather serious problems in dbmirror's support for mirroring sequence operations (int4 vs int8 confusion for instance).
63 lines
1.5 KiB
PL/PgSQL
63 lines
1.5 KiB
PL/PgSQL
BEGIN;
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CREATE FUNCTION "recordchange" () RETURNS trigger AS
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'$libdir/pending', 'recordchange' LANGUAGE 'C';
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CREATE TABLE dbmirror_MirrorHost (
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MirrorHostId serial not null,
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SlaveName varchar NOT NULL,
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PRIMARY KEY(MirrorHostId)
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);
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CREATE TABLE dbmirror_Pending (
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SeqId serial,
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TableName Name NOT NULL,
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Op character,
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XID int4 NOT NULL,
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PRIMARY KEY (SeqId)
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);
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CREATE INDEX dbmirror_Pending_XID_Index ON dbmirror_Pending (XID);
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CREATE TABLE dbmirror_PendingData (
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SeqId int4 NOT NULL,
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IsKey bool NOT NULL,
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Data varchar,
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PRIMARY KEY (SeqId, IsKey) ,
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FOREIGN KEY (SeqId) REFERENCES dbmirror_Pending (SeqId) ON UPDATE CASCADE ON DELETE CASCADE
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);
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CREATE TABLE dbmirror_MirroredTransaction (
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XID int4 NOT NULL,
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LastSeqId int4 NOT NULL,
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MirrorHostId int4 NOT NULL,
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PRIMARY KEY (XID,MirrorHostId),
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FOREIGN KEY (MirrorHostId) REFERENCES dbmirror_MirrorHost (MirrorHostId) ON UPDATE CASCADE ON DELETE CASCADE,
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FOREIGN KEY (LastSeqId) REFERENCES dbmirror_Pending (SeqId) ON UPDATE
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CASCADE ON DELETE CASCADE
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);
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UPDATE pg_proc SET proname='nextval_pg' WHERE proname='nextval';
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CREATE FUNCTION pg_catalog.nextval(regclass) RETURNS int8 AS
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'$libdir/pending', 'nextval_mirror' LANGUAGE 'C' STRICT;
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UPDATE pg_proc set proname='setval_pg' WHERE proname='setval';
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CREATE FUNCTION pg_catalog.setval(regclass, int8, boolean) RETURNS int8 AS
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'$libdir/pending', 'setval3_mirror' LANGUAGE 'C' STRICT;
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CREATE FUNCTION pg_catalog.setval(regclass, int8) RETURNS int8 AS
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'$libdir/pending', 'setval_mirror' LANGUAGE 'C' STRICT;
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COMMIT;
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