From: Sandro Santilli <strk@keybit.net>
Date: Fri, 4 Jun 2004 12:40:43 +0000 (+0000)
Subject: Added comments about fix_geometry_columns() job.
X-Git-Tag: pgis_0_9_1~204
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=89814f03111c17b109a8ad9470f2b5ba1ccf28eb;p=postgis

Added comments about fix_geometry_columns() job.
SRID and type checks made stricter in fix_geometry_columns().


git-svn-id: http://svn.osgeo.org/postgis/trunk@590 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/postgis.sql.in b/postgis.sql.in
index dba59ce1f..3740dde0d 100644
--- a/postgis.sql.in
+++ b/postgis.sql.in
@@ -350,6 +350,19 @@ LANGUAGE 'sql' WITH (iscachable,isstrict);
 -----------------------------------------------------------------------
 -- FIX_GEOMETRY_COLUMNS() 
 -----------------------------------------------------------------------
+-- This function will:
+--
+--	o try to fix the schema of records with an invalid one
+--		(for PG>=73)
+--
+--	o link records to system tables through attrelid and varattnum
+--		(for PG<75)
+--
+--	o delete all records for which no linking was possible
+--		(for PG<75)
+--	
+-- 
+-----------------------------------------------------------------------
 CREATEFUNCTION fix_geometry_columns() RETURNS text
 AS 
 '
@@ -388,8 +401,8 @@ BEGIN
                 AND sridcheck.conname = ''$1''
                 AND typecheck.conrelid = c.oid
                 AND typecheck.conname = ''$2''
-                AND sridcheck.consrc ~ srid::text
-                AND typecheck.consrc ~ type::text
+                AND sridcheck.consrc ~ textcat('' = '', srid::text)
+                AND typecheck.consrc ~ textcat('' = '''''', type::text)
                 AND NOT EXISTS (
                         SELECT oid FROM geometry_columns gc
                         WHERE c.relname::varchar = gc.f_table_name