2026-03-12 20:23:15

tpt/tools/optimizer/descxx_install.sql

@@ -0,0 +1,45 @@
+-- descxx.sql requires the display_raw function which is included in the comment section below.
+-- the display_raw function is taken from Greg Rahn's blog as I'm too lazy to write one myself
+--     http://structureddata.org/2007/10/16/how-to-display-high_valuelow_value-columns-from-user_tab_col_statistics/
+--
+
+PROMPT Install DISPLAY_RAW helper function into the current schema?
+PAUSE Press ENTER to install, CTRL+C to cancel...
+
+create or replace function display_raw (rawval raw, type varchar2)
+return varchar2
+is
+   cn     number;
+   cv     varchar2(128);
+   cd     date;
+   cnv    nvarchar2(128);
+   cr     rowid;
+   cc     char(128);
+begin
+   if (type = 'NUMBER') then
+      dbms_stats.convert_raw_value(rawval, cn);
+      return to_char(cn);
+   elsif (type = 'VARCHAR2') then
+      dbms_stats.convert_raw_value(rawval, cv);
+      return to_char(cv);
+   elsif (type = 'DATE') then
+      dbms_stats.convert_raw_value(rawval, cd);
+      return to_char(cd);
+   elsif (type = 'NVARCHAR2') then
+      dbms_stats.convert_raw_value(rawval, cnv);
+      return to_char(cnv);
+   elsif (type = 'ROWID') then
+      dbms_stats.convert_raw_value(rawval, cr);
+      return to_char(cnv);
+   elsif (type = 'CHAR') then
+      dbms_stats.convert_raw_value(rawval, cc);
+      return to_char(cc);
+   else
+      return 'UNKNOWN DATATYPE';
+   end if;
+end;
+/
+
+grant execute on display_raw to public;
+create public synonym display_raw for display_raw;
+