Hello this patch contains a string formatting function "format"
postgres=# select format('some message: % (current user: %)', current_date, current_user); format ------------------------------------------------ some message: 2010-03-09 (current user: pavel) (1 row) this patch add new contrib module string functions - contains mainly sprintf function: postgres=# select sprintf('some message: %10s (%10s)', current_date, current_user); sprintf --------------------------------------- some message: 2010-03-09 ( pavel) (1 row) postgres=# select sprintf('some message: %10s (%-10s)', current_date, current_user); sprintf --------------------------------------- some message: 2010-03-09 (pavel ) (1 row) some string variadic functions postgres=# select concat('ahaha',10,null,current_date, true); concat ------------------------ ahaha,10,,2010-03-09,t (1 row) postgres=# select concat_sql('ahaha',10,null,current_date, true); concat_sql -------------------------------- 'ahaha',10,NULL,'2010-03-09',t (1 row) postgres=# select concat_json('ahaha'::text,10,null,current_date, true); concat_json ----------------------------------- "ahaha",10,null,"2010-03-09",true (1 row) and some basic text function rvrs, left, right. Regards Pavel Stehule
stringfunc.diff
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