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diff --git a/src/postrr.sql.in b/src/postrr.sql.in
index 22ce15ca3eaa2affab83f5188a30a25244fa63b2..9f34f22100cfd04151da1afb56ca23ec2c3538d8 100644 (file)
--- a/src/postrr.sql.in
+++ b/src/postrr.sql.in
tsnum integer NOT NULL
);
+CREATE TABLE postrr.rrarchives (
+ rraname text NOT NULL,
+ tbl name NOT NULL,
+ tscol name NOT NULL,
+ vcol name NOT NULL,
+ UNIQUE (rraname, tbl, tscol, vcol)
+);
+
CREATE OR REPLACE FUNCTION PostRR_Version()
RETURNS cstring
AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'postrr_version'
WITH FUNCTION RRTimeslice(rrtimeslice, integer, boolean)
AS IMPLICIT;
-CREATE OR REPLACE FUNCTION RRTimeslice_eq(rrtimeslice, rrtimeslice)
+CREATE OR REPLACE FUNCTION Tstamptz(rrtimeslice)
+ RETURNS timestamptz
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_to_timestamptz'
+ LANGUAGE 'C' IMMUTABLE STRICT;
+
+CREATE CAST (rrtimeslice AS timestamptz)
+ WITH FUNCTION Tstamptz(rrtimeslice);
+ -- EXPLICIT
+
+CREATE OR REPLACE FUNCTION rrtimeslice_cmp(rrtimeslice, rrtimeslice)
+ RETURNS integer
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_cmp'
+ LANGUAGE 'C' IMMUTABLE STRICT;
+
+CREATE OR REPLACE FUNCTION rrtimeslice_seq_eq(rrtimeslice, rrtimeslice)
RETURNS boolean
- AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_eq'
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_seq_eq'
LANGUAGE 'C' IMMUTABLE STRICT;
-CREATE OR REPLACE FUNCTION RRTimeslice_ne(rrtimeslice, rrtimeslice)
+CREATE OR REPLACE FUNCTION rrtimeslice_seq_ne(rrtimeslice, rrtimeslice)
RETURNS boolean
- AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_ne'
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_seq_ne'
LANGUAGE 'C' IMMUTABLE STRICT;
-CREATE OR REPLACE FUNCTION RRTimeslice_lt(rrtimeslice, rrtimeslice)
+CREATE OR REPLACE FUNCTION rrtimeslice_seq_lt(rrtimeslice, rrtimeslice)
RETURNS boolean
- AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_lt'
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_seq_lt'
LANGUAGE 'C' IMMUTABLE STRICT;
-CREATE OR REPLACE FUNCTION RRTimeslice_le(rrtimeslice, rrtimeslice)
+CREATE OR REPLACE FUNCTION rrtimeslice_seq_le(rrtimeslice, rrtimeslice)
RETURNS boolean
- AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_le'
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_seq_le'
LANGUAGE 'C' IMMUTABLE STRICT;
-CREATE OR REPLACE FUNCTION RRTimeslice_gt(rrtimeslice, rrtimeslice)
+CREATE OR REPLACE FUNCTION rrtimeslice_seq_gt(rrtimeslice, rrtimeslice)
RETURNS boolean
- AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_gt'
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_seq_gt'
LANGUAGE 'C' IMMUTABLE STRICT;
-CREATE OR REPLACE FUNCTION RRTimeslice_ge(rrtimeslice, rrtimeslice)
+CREATE OR REPLACE FUNCTION rrtimeslice_seq_ge(rrtimeslice, rrtimeslice)
RETURNS boolean
- AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_ge'
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_seq_ge'
LANGUAGE 'C' IMMUTABLE STRICT;
-CREATE OR REPLACE FUNCTION RRTimeslice_cmp(rrtimeslice, rrtimeslice)
+CREATE OR REPLACE FUNCTION rrtimeslice_seq_cmp(rrtimeslice, rrtimeslice)
RETURNS integer
- AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_cmp'
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_seq_cmp'
+ LANGUAGE 'C' IMMUTABLE STRICT;
+
+CREATE OR REPLACE FUNCTION rrtimeslice_seq_hash(rrtimeslice)
+ RETURNS integer
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'rrtimeslice_seq_hash'
LANGUAGE 'C' IMMUTABLE STRICT;
CREATE OPERATOR = (
LEFTARG = RRTimeslice,
RIGHTARG = RRTimeslice,
- PROCEDURE = RRTimeslice_eq,
+ PROCEDURE = rrtimeslice_seq_eq,
COMMUTATOR = =,
NEGATOR = <>,
RESTRICT = eqsel
CREATE OPERATOR <> (
LEFTARG = RRTimeslice,
RIGHTARG = RRTimeslice,
- PROCEDURE = RRTimeslice_ne,
+ PROCEDURE = rrtimeslice_seq_ne,
COMMUTATOR = <>,
NEGATOR = =,
RESTRICT = neqsel
CREATE OPERATOR < (
LEFTARG = RRTimeslice,
RIGHTARG = RRTimeslice,
- PROCEDURE = RRTimeslice_lt,
+ PROCEDURE = rrtimeslice_seq_lt,
COMMUTATOR = >,
NEGATOR = <=,
RESTRICT = scalarltsel
CREATE OPERATOR <= (
LEFTARG = RRTimeslice,
RIGHTARG = RRTimeslice,
- PROCEDURE = RRTimeslice_le,
+ PROCEDURE = rrtimeslice_seq_le,
COMMUTATOR = >=,
NEGATOR = <,
RESTRICT = scalarltsel
CREATE OPERATOR > (
LEFTARG = RRTimeslice,
RIGHTARG = RRTimeslice,
- PROCEDURE = RRTimeslice_gt,
+ PROCEDURE = rrtimeslice_seq_gt,
COMMUTATOR = <,
NEGATOR = >=,
RESTRICT = scalargtsel
CREATE OPERATOR >= (
LEFTARG = RRTimeslice,
RIGHTARG = RRTimeslice,
- PROCEDURE = RRTimeslice_ge,
+ PROCEDURE = rrtimeslice_seq_ge,
COMMUTATOR = <=,
NEGATOR = >,
RESTRICT = scalargtsel
OPERATOR 3 = ,
OPERATOR 4 >= ,
OPERATOR 5 > ,
- FUNCTION 1 RRTimeslice_cmp(rrtimeslice, rrtimeslice);
+ FUNCTION 1 rrtimeslice_seq_cmp(rrtimeslice, rrtimeslice);
+
+CREATE OPERATOR CLASS rrtimeslice_hash_ops
+ FOR TYPE RRTimeslice USING hash AS
+ OPERATOR 1 = ,
+ FUNCTION 1 rrtimeslice_seq_hash(rrtimeslice);
CREATE TYPE CData;
AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'cdata_out'
LANGUAGE 'C' IMMUTABLE STRICT;
+CREATE OR REPLACE FUNCTION CData_typmodin(cstring[])
+ RETURNS integer
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'cdata_typmodin'
+ LANGUAGE 'C' IMMUTABLE STRICT;
+
+CREATE OR REPLACE FUNCTION CData_typmodout(integer)
+ RETURNS cstring
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'cdata_typmodout'
+ LANGUAGE 'C' IMMUTABLE STRICT;
+
CREATE TYPE CData (
INTERNALLENGTH = 24,
INPUT = CData_in,
OUTPUT = CData_out,
+ TYPMOD_IN = CData_typmodin,
+ TYPMOD_OUT = CData_typmodout,
ALIGNMENT = double,
STORAGE = plain
);
+CREATE OR REPLACE FUNCTION CData(cdata, integer, boolean)
+ RETURNS cdata
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'cdata_to_cdata'
+ LANGUAGE 'C' IMMUTABLE STRICT;
+
+CREATE CAST (cdata AS cdata)
+ WITH FUNCTION CData(cdata, integer, boolean)
+ AS IMPLICIT;
+
+CREATE CAST (numeric AS cdata)
+ WITH INOUT
+ AS ASSIGNMENT;
+
+CREATE OR REPLACE FUNCTION CData(integer, integer, boolean)
+ RETURNS cdata
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'int32_to_cdata'
+ LANGUAGE 'C' IMMUTABLE STRICT;
+
+CREATE CAST (integer AS cdata)
+ WITH FUNCTION CData(integer, integer, boolean)
+ AS ASSIGNMENT;
+
+CREATE OR REPLACE FUNCTION Float8(cdata)
+ RETURNS double precision
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'cdata_to_float8'
+ LANGUAGE 'C' IMMUTABLE STRICT;
+
+CREATE CAST (cdata AS double precision)
+ WITH FUNCTION Float8(cdata);
+ -- EXPLICIT
+
+CREATE OR REPLACE FUNCTION CData_update(cdata, cdata)
+ RETURNS cdata
+ AS 'postrr-@POSTRR_MAJOR_VERSION@.@POSTRR_MINOR_VERSION@', 'cdata_update'
+ LANGUAGE 'C' IMMUTABLE;
+
+CREATE OR REPLACE FUNCTION PostRR_update(name, name, name, timestamptz, double precision)
+ RETURNS cdata
+ LANGUAGE plpgsql
+ AS $$
+DECLARE
+ tbl ALIAS FOR $1;
+ tscol ALIAS FOR $2;
+ vcol ALIAS FOR $3;
+ ts ALIAS FOR $4;
+ value ALIAS FOR $5;
+ ts_str text;
+ v_str text;
+ update_qry text;
+ status integer;
+ newts rrtimeslice;
+ new cdata;
+BEGIN
+ tscol := quote_ident(tscol);
+ vcol := quote_ident(vcol);
+ ts_str := quote_literal(ts);
+ v_str := quote_literal(value);
+
+ update_qry = 'CData_update(' || vcol || ', ' || v_str || ')';
+
+ -- XXX: handle race conditions
+
+ BEGIN
+ EXECUTE 'SELECT rrtimeslice_cmp(' || tscol || ', ' || ts_str
+ || ') AS status FROM ' || tbl
+ || ' WHERE ' || tscol || ' = ' || ts_str
+ INTO STRICT status;
+
+ EXCEPTION
+ WHEN NO_DATA_FOUND THEN
+ EXECUTE 'INSERT INTO ' || tbl
+ || ' (' || tscol || ', ' || vcol
+ || ') VALUES (' || ts_str || ', ' || v_str
+ || ') RETURNING ' || tscol || ', ' || vcol
+ INTO newts, new;
+ -- use strict again; on exception retry?
+ RETURN new;
+ WHEN TOO_MANY_ROWS THEN
+ RAISE EXCEPTION '% is not unique in %.%', ts_str, tbl, tscol;
+ END;
+
+ IF status = 0 THEN
+ -- timestamps match
+ EXECUTE 'UPDATE ' || tbl
+ || ' SET ' || vcol || ' = ' || update_qry
+ || ' WHERE ' || tscol || ' = ' || ts_str
+ || ' RETURNING ' || tscol || ', ' || vcol
+ INTO STRICT newts, new;
+ ELSIF status < 0 THEN
+ -- given timestamp is newer than in the database
+ EXECUTE 'UPDATE ' || tbl
+ || ' SET ' || tscol || ' = ' || ts_str
+ || ', ' || vcol || ' = ' || v_str
+ || ' WHERE ' || tscol || ' = ' || ts_str
+ || ' RETURNING ' || tscol || ', ' || vcol
+ INTO STRICT newts, new;
+ ELSE
+ RAISE EXCEPTION '% is too old in %.%', ts_str, tbl, tscol;
+ END IF;
+ RETURN new;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION PostRR_update(text, timestamptz, double precision)
+ RETURNS SETOF cdata
+ LANGUAGE plpgsql
+ AS $$
+DECLARE
+ -- $1: rraname
+ -- $2: timestamp
+ -- $3: value
+ adef RECORD;
+ new cdata;
+BEGIN
+ FOR adef IN SELECT tbl, tscol, vcol FROM postrr.rrarchives
+ WHERE postrr.rrarchives.rraname = $1 LOOP
+ SELECT PostRR_update(adef.tbl, adef.tscol, adef.vcol, $2, $3)
+ INTO new;
+ RETURN NEXT new;
+ END LOOP;
+ RETURN;
+END;
+$$;
+
COMMIT;
SET client_min_messages TO DEFAULT;