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https://git.postgresql.org/git/postgresql.git
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f85f43dfb5
only remnant of this failed experiment is that the server will take SET AUTOCOMMIT TO ON. Still TODO: provide some client-side autocommit logic in libpq.
44 lines
1001 B
SQL
44 lines
1001 B
SQL
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CREATE FUNCTION "recordchange" () RETURNS trigger AS
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'/usr/local/pgsql/lib/pending.so', 'recordchange' LANGUAGE 'C';
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CREATE TABLE "MirrorHost" (
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"MirrorHostId" serial,
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"HostName" varchar NOT NULL,
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PRIMARY KEY("MirrorHostId")
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);
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CREATE TABLE "Pending" (
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"SeqId" serial,
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"TableName" varchar 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 "Pending_XID_Index" ON "Pending" ("XID");
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CREATE TABLE "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 "Pending" ("SeqId") ON UPDATE CASCADE ON DELETE CASCADE
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);
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CREATE TABLE "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 "MirrorHost" ("MirrorHostId") ON UPDATE CASCADE ON DELETE CASCADE,
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FOREIGN KEY ("LastSeqId") REFERENCES "Pending" ("SeqId") ON UPDATE
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CASCADE ON DELETE CASCADE
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);
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