postgis/postgis/postgis_before_upgrade.sql

246 lines
9.2 KiB
PL/PgSQL

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--
--
-- PostGIS - Spatial Types for PostgreSQL
-- http://postgis.net
--
-- Copyright (C) 2011-2012 Sandro Santilli <strk@kbt.io>
-- Copyright (C) 2010-2013 Regina Obe <lr@pcorp.us>
-- Copyright (C) 2009 Paul Ramsey <pramsey@cleverelephant.ca>
--
-- This is free software; you can redistribute and/or modify it under
-- the terms of the GNU General Public Licence. See the COPYING file.
--
-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--
-- This file contains drop commands for obsoleted items that need
-- to be dropped _before_ upgrade of old functions.
-- Changes to this file affect postgis_upgrade*.sql script.
--
-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-- Helper function to drop functions when they match the full signature
-- Requires schema, name and __exact arguments__ as extracted from pg_catalog.pg_get_function_arguments
-- You can extract the old function arguments using a query like:
-- SELECT p.oid as oid,
-- n.nspname as schema,
-- p.proname as name,
-- pg_catalog.pg_get_function_arguments(p.oid) as arguments
-- FROM pg_catalog.pg_proc p
-- LEFT JOIN pg_catalog.pg_namespace n ON n.oid = p.pronamespace
-- WHERE
-- pg_catalog.LOWER(n.nspname) = pg_catalog.LOWER('public') AND
-- pg_catalog.LOWER(p.proname) = pg_catalog.LOWER('ST_AsGeoJson')
-- ORDER BY 1, 2, 3, 4;
CREATE OR REPLACE FUNCTION _postgis_drop_function_if_needed(
function_name text,
function_arguments text) RETURNS void AS $$
DECLARE
sql_drop text;
postgis_namespace OID;
matching_function REGPROCEDURE;
BEGIN
-- Fetch install namespace for PostGIS
SELECT n.oid
FROM pg_catalog.pg_proc p
JOIN pg_catalog.pg_namespace n ON p.pronamespace = n.oid
WHERE proname = 'postgis_full_version'
INTO postgis_namespace;
-- Find a function matching the given signature
SELECT oid
FROM pg_catalog.pg_proc p
WHERE pronamespace = postgis_namespace
AND pg_catalog.LOWER(p.proname) = pg_catalog.LOWER(function_name)
AND pg_catalog.pg_function_is_visible(p.oid)
AND pg_catalog.LOWER(pg_catalog.pg_get_function_identity_arguments(p.oid)) ~ pg_catalog.LOWER(function_arguments)
INTO matching_function;
IF matching_function IS NOT NULL THEN
sql_drop := 'DROP FUNCTION ' || matching_function;
RAISE DEBUG 'SQL query: %', sql_drop;
BEGIN
EXECUTE sql_drop;
EXCEPTION
WHEN OTHERS THEN
RAISE EXCEPTION 'Could not drop function %. You might need to drop dependant objects. Postgres error: %', function_name, SQLERRM;
END;
END IF;
END;
$$ LANGUAGE plpgsql;
-- FUNCTION AddGeometryColumn signature dropped
-- (catalog_name character varying, schema_name character varying, table_name character varying, column_name character varying, new_srid integer, new_type character varying, new_dim integer, use_typmod boolean)
SELECT _postgis_drop_function_if_needed
(
'AddGeometryColumn',
'catalog_name character varying, schema_name character varying, table_name character varying, column_name character varying, new_srid integer, new_type character varying, new_dim integer, use_typmod boolean'
);
-- FUNCTION ST_AsX3D was changed to add versioning for 2.0
-- (geom geometry, prec integer, options integer)
SELECT _postgis_drop_function_if_needed
(
'ST_AsX3D',
'geom geometry, prec integer, options integer'
);
-- FUNCTION UpdateGeometrySRID changed the name of the args (http://trac.osgeo.org/postgis/ticket/1606) for 2.0
-- It changed the paramenter `new_srid` to `new_srid_in`
-- (catalogn_name character varying, schema_name character varying, table_name character varying, column_name character varying, new_srid integer)
-- Dropping it conditionally since the same signature still exists.
SELECT _postgis_drop_function_if_needed
(
'UpdateGeometrySRID',
'catalogn_name character varying, schema_name character varying, table_name character varying, column_name character varying, new_srid integer'
);
--deprecated and removed in 2.1
-- Hack to fix 2.0 naming
-- We can't just drop it since its bound to opclass
-- See ticket 2279 for why we need to do this
-- We can get rid of this DO code when 3.0 comes along
DO language 'plpgsql' $$
BEGIN
-- fix geometry ops --
IF EXISTS(SELECT oprname from pg_operator where oprname = '&&' AND oprrest::text = 'geometry_gist_sel_2d') THEN
--it is bound to old name, drop new, rename old to new, install will fix body of code
DROP FUNCTION IF EXISTS gserialized_gist_sel_2d(internal, oid, internal, int4) ;
ALTER FUNCTION geometry_gist_sel_2d(internal, oid, internal, int4) RENAME TO gserialized_gist_sel_2d;
END IF;
IF EXISTS(SELECT oprname from pg_operator where oprname = '&&' AND oprjoin::text = 'geometry_gist_joinsel_2d') THEN
--it is bound to old name, drop new, rename old to new, install will fix body of code
DROP FUNCTION IF EXISTS gserialized_gist_joinsel_2d(internal, oid, internal, smallint) ;
ALTER FUNCTION geometry_gist_joinsel_2d(internal, oid, internal, smallint) RENAME TO gserialized_gist_joinsel_2d;
END IF;
-- fix geography ops --
IF EXISTS(SELECT oprname from pg_operator where oprname = '&&' AND oprrest::text = 'geography_gist_selectivity') THEN
--it is bound to old name, drop new, rename old to new, install will fix body of code
DROP FUNCTION IF EXISTS gserialized_gist_sel_nd(internal, oid, internal, int4) ;
ALTER FUNCTION geography_gist_selectivity(internal, oid, internal, int4) RENAME TO gserialized_gist_sel_nd;
END IF;
IF EXISTS(SELECT oprname from pg_operator where oprname = '&&' AND oprjoin::text = 'geography_gist_join_selectivity') THEN
--it is bound to old name, drop new, rename old to new, install will fix body of code
DROP FUNCTION IF EXISTS gserialized_gist_joinsel_nd(internal, oid, internal, smallint) ;
ALTER FUNCTION geography_gist_join_selectivity(internal, oid, internal, smallint) RENAME TO gserialized_gist_joinsel_nd;
END IF;
END;
$$ ;
-- FUNCTION ST_AsLatLonText went from multiple signatures to a single one with defaults for 2.2.0
DROP FUNCTION IF EXISTS ST_AsLatLonText(geometry); -- Does not conflict
SELECT _postgis_drop_function_if_needed
(
'ST_AsLatLonText',
'geometry, text'
);
-- FUNCTION ST_LineCrossingDirection changed argument names in 3.0
-- Was (geom1 geometry, geom2 geometry) and now (line1 geometry, line2 geometry)
SELECT _postgis_drop_function_if_needed
(
'ST_LineCrossingDirection',
'geom1 geometry, geom2 geometry'
);
-- FUNCTION _st_linecrossingdirection changed argument names in 3.0
-- Was (geom1 geometry, geom2 geometry) and now (line1 geometry, line2 geometry)
SELECT _postgis_drop_function_if_needed
(
'_ST_LineCrossingDirection',
'geom1 geometry, geom2 geometry'
);
-- FUNCTION ST_AsGeoJson changed argument names
-- (pretty_print => pretty_bool) in 3.0alpha4
SELECT _postgis_drop_function_if_needed
(
'ST_AsGeoJson',
$args$r record, geom_column text, maxdecimaldigits integer, pretty_print boolean$args$
);
-- FUNCTION _st_orderingequals changed argument names in 3.0
-- Was (GeometryA geometry, GeometryB geometry) and now (geom1 geometry, geom2 geometry)
SELECT _postgis_drop_function_if_needed
(
'_st_orderingequals',
'GeometryA geometry, GeometryB geometry'
);
-- FUNCTION st_orderingequals changed argument names in 3.0
-- Was (GeometryA geometry, GeometryB geometry) and now (geom1 geometry, geom2 geometry)
SELECT _postgis_drop_function_if_needed
(
'st_orderingequals',
'GeometryA geometry, GeometryB geometry'
);
-- FUNCTION st_tileenvelope added a new default argument in 3.1
SELECT _postgis_drop_function_if_needed
(
'st_tileenvelope',
'zoom integer, x integer, y integer, bounds geometry'
);
-- FUNCTION st_buffer changed to add defaults in 3.0
-- This signature was superseeded
DROP FUNCTION IF EXISTS st_buffer(geometry, double precision); -- Does not conflict
-- FUNCTION ST_CurveToLine changed to add defaults in 2.5
-- These signatures were superseeded
DROP FUNCTION IF EXISTS ST_CurveToLine(geometry, integer); -- Does not conflict
DROP FUNCTION IF EXISTS ST_CurveToLine(geometry); -- Does not conflict
-- geometry_columns changed parameter types so we verify if it needs to be dropped
-- We check the catalog to see if the view (geometry_columns) has a column
-- with name `f_table_schema` and type `character varying(256)` as it was
-- changed to type `name` in 2.2
DO language 'plpgsql' $$
BEGIN
IF EXISTS
(
WITH oids AS
(
SELECT c.oid as oid,
n.nspname,
c.relname
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE c.relname = 'geometry_columns' AND
n.nspname = 'public'
AND pg_catalog.pg_table_is_visible(c.oid)
ORDER BY 2, 3
),
name_attribute AS
(
SELECT a.attname as attname,
pg_catalog.format_type(a.atttypid, a.atttypmod) as format_type
FROM pg_catalog.pg_attribute a, oids
WHERE a.attrelid = oids.oid AND a.attnum > 0 AND NOT a.attisdropped
ORDER BY a.attnum
)
SELECT attname, format_type
FROM name_attribute
WHERE attname = 'f_table_schema' AND format_type = 'character varying(256)'
)
THEN
DROP VIEW geometry_columns;
END IF;
END;
$$;
-- DROP auxiliar function (created above)
DROP FUNCTION _postgis_drop_function_if_needed(text, text);