forked from huawei/openGauss-server
89 lines
2.1 KiB
SQL
89 lines
2.1 KiB
SQL
/* contrib/tablefunc/tablefunc--1.0.sql */
|
|
|
|
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
|
|
\echo Use "CREATE EXTENSION tablefunc" to load this file. \quit
|
|
|
|
CREATE FUNCTION normal_rand(int4, float8, float8)
|
|
RETURNS setof float8
|
|
AS 'MODULE_PATHNAME','normal_rand'
|
|
LANGUAGE C VOLATILE STRICT;
|
|
|
|
-- the generic crosstab function:
|
|
CREATE FUNCTION crosstab(text)
|
|
RETURNS setof record
|
|
AS 'MODULE_PATHNAME','crosstab'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
-- examples of building custom type-specific crosstab functions:
|
|
CREATE TYPE tablefunc_crosstab_2 AS
|
|
(
|
|
row_name TEXT,
|
|
category_1 TEXT,
|
|
category_2 TEXT
|
|
);
|
|
|
|
CREATE TYPE tablefunc_crosstab_3 AS
|
|
(
|
|
row_name TEXT,
|
|
category_1 TEXT,
|
|
category_2 TEXT,
|
|
category_3 TEXT
|
|
);
|
|
|
|
CREATE TYPE tablefunc_crosstab_4 AS
|
|
(
|
|
row_name TEXT,
|
|
category_1 TEXT,
|
|
category_2 TEXT,
|
|
category_3 TEXT,
|
|
category_4 TEXT
|
|
);
|
|
|
|
CREATE FUNCTION crosstab2(text)
|
|
RETURNS setof tablefunc_crosstab_2
|
|
AS 'MODULE_PATHNAME','crosstab'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
CREATE FUNCTION crosstab3(text)
|
|
RETURNS setof tablefunc_crosstab_3
|
|
AS 'MODULE_PATHNAME','crosstab'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
CREATE FUNCTION crosstab4(text)
|
|
RETURNS setof tablefunc_crosstab_4
|
|
AS 'MODULE_PATHNAME','crosstab'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
-- obsolete:
|
|
CREATE FUNCTION crosstab(text,int)
|
|
RETURNS setof record
|
|
AS 'MODULE_PATHNAME','crosstab'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
CREATE FUNCTION crosstab(text,text)
|
|
RETURNS setof record
|
|
AS 'MODULE_PATHNAME','crosstab_hash'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
CREATE FUNCTION connectby(text,text,text,text,int,text)
|
|
RETURNS setof record
|
|
AS 'MODULE_PATHNAME','connectby_text'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
CREATE FUNCTION connectby(text,text,text,text,int)
|
|
RETURNS setof record
|
|
AS 'MODULE_PATHNAME','connectby_text'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
-- These 2 take the name of a field to ORDER BY as 4th arg (for sorting siblings)
|
|
|
|
CREATE FUNCTION connectby(text,text,text,text,text,int,text)
|
|
RETURNS setof record
|
|
AS 'MODULE_PATHNAME','connectby_text_serial'
|
|
LANGUAGE C STABLE STRICT;
|
|
|
|
CREATE FUNCTION connectby(text,text,text,text,text,int)
|
|
RETURNS setof record
|
|
AS 'MODULE_PATHNAME','connectby_text_serial'
|
|
LANGUAGE C STABLE STRICT;
|