fixes bug#23643

qua:filipe 
 dev: aristides

git-svn-id: http://desenvolvimento.rjconsultores.com.br/repositorio/sco/BD/FlyWay/trunk@109927 d1611594-4594-4d17-8e1d-87c2c4800839

src/db/migration/V20211230_1120__mantis23643.sql

@@ -0,0 +1,7 @@
+declare
+    column_exists exception;
+    pragma exception_init (column_exists , -01430);
+begin
+    execute immediate 'ALTER TABLE RUTA_ICMS_EXCEPCION ADD (INDCST41 NUMBER(1))';
+    exception when column_exists then null;
+end;

src/db/postgresql/migration/V20211230_1618__mantis23643.sql

@@ -0,0 +1,6 @@
+DO $$
+BEGIN
+  ALTER TABLE RUTA_ICMS_EXCEPCION ADD INDCST41 NUMBER(1,0);
+  EXCEPTION WHEN duplicate_column THEN NULL;
+END
+$$;