[postgis-tickets] r17359 - Only drop old functions if they exists

[Raul]

Author: algunenano
Date: 2019-03-26 07:00:13 -0700 (Tue, 26 Mar 2019)
New Revision: 17359

Modified:
   trunk/postgis/postgis_drop_before.sql
Log:
Only drop old functions if they exists

References #4345


Modified: trunk/postgis/postgis_drop_before.sql
===================================================================
--- trunk/postgis/postgis_drop_before.sql	2019-03-25 18:20:10 UTC (rev 17358)
+++ trunk/postgis/postgis_drop_before.sql	2019-03-26 14:00:13 UTC (rev 17359)
@@ -68,11 +68,11 @@
 DROP FUNCTION IF EXISTS ST_AsTWKB(geometry,int4,int8,boolean);
 
 -- Going from un-named to named arguments
-DROP FUNCTION _st_linecrossingdirection(geometry,geometry);
-DROP FUNCTION _st_orderingequals(geometry,geometry);
-DROP FUNCTION st_orderingequals(geometry,geometry);
-DROP FUNCTION st_askml(geometry, integer);
-DROP FUNCTION st_buffer(geometry, double precision);
+DROP FUNCTION IF EXISTS _st_linecrossingdirection(geometry,geometry);
+DROP FUNCTION IF EXISTS _st_orderingequals(geometry,geometry);
+DROP FUNCTION IF EXISTS st_orderingequals(geometry,geometry);
+DROP FUNCTION IF EXISTS st_askml(geometry, integer);
+DROP FUNCTION IF EXISTS st_buffer(geometry, double precision);
 
 -- Old signatures for protobuf related functions improved in 2.4.0 RC/final
 DROP AGGREGATE IF EXISTS ST_AsMVT(text, int4, text, anyelement);