1 add namespaces as Tom suggest http://www.pgsql.ru/db/mw/msg.html?mid=1987703

2 remove select qeury in inserts

contrib/tsearch2/common.h

@@ -21,4 +21,13 @@ int			text_cmp(text *a, text *b);
 
 void		ts_error(int state, const char *format,...);
 
+extern Oid TSNSP_FunctionOid; /* oid of called function, needed only for determ namespace, no more */
+char* get_namespace(Oid funcoid);
+Oid get_oidnamespace(Oid funcoid);
+
+#define SET_FUNCOID()   do {                                            \
+        if ( fcinfo->flinfo && fcinfo->flinfo->fn_oid != InvalidOid )   \
+                TSNSP_FunctionOid = fcinfo->flinfo->fn_oid;                   \
+} while(0)
+
 #endif