hello,
i am actually trying to replace all occurences in a text column with some
value, but the occurrences to replace are defined in a table. this is a
simplified version of my schema:
create temporary table tmp_vars as select var from
(values('ABC'),('XYZ'),('VAR123')) entries (var);
create temporary table tmp_messages as select message from (values('my ABC is
XYZ'),('the XYZ is very VAR123')) messages (message);
select * from tmp_messages;
my ABC is XYZ -- row 1
the XYZ is very VAR123 -- row 2
now i need to somehow update the rows in tmp_messages, so that after the update
i get the following:
select * from tmp_messages;
my XXX is XXX -- row 1
the XXX is very XXX -- row 2
i have implemented a solution in plpgsql by doing a nested for-loop over
tmp_vars and tmp_messages, but i would like to know if there is a more
efficient way to solve this problem ?
best regards
jan
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