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Doc, more or less: uncomment tutorial example that was fixed long ago.

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Reverts a portion of commit 344190b7e.  Apparently, back in the
twentieth century we had some issues with multi-statement SQL
functions, but they've worked fine for a long time.

Daniel Westermann

Discussion: https://postgr.es/m/GVAP278MB04242DCBF5E31F528D53FA18D2A90@GVAP278MB0424.CHEP278.PROD.OUTLOOK.COM
This commit is contained in:
Tom Lane 2021-01-13 15:59:57 -05:00
parent 93c39f987e
commit dce6249081
1 changed files with 11 additions and 14 deletions
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25
src/tutorial/funcs.source
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@ -99,24 +99,21 @@ SELECT name(high_pay()) AS overpaid;
----------------------------- -----------------------------
-- Creating SQL Functions with multiple SQL statements -- Creating SQL Functions with multiple SQL statements
-- you can also create functions that do more than just a SELECT. -- you can also create functions that do more than just a SELECT.
--
-- 14MAR99 Clark Evans: Does not quite work, commented out for now.
--
----------------------------- -----------------------------
-- you may have noticed that Andy has a negative salary. We'll create a -- you may have noticed that Andy has a negative salary. We'll create a
-- function that removes employees with negative salaries. -- function that removes employees with negative salaries.
--
-- SELECT * FROM EMP; SELECT * FROM EMP;
--
-- CREATE FUNCTION clean_EMP () RETURNS integer CREATE FUNCTION clean_EMP () RETURNS integer
-- AS 'DELETE FROM EMP WHERE EMP.salary <= 0; AS 'DELETE FROM EMP WHERE EMP.salary <= 0;
-- SELECT 1 AS ignore_this' SELECT 1 AS ignore_this'
-- LANGUAGE SQL; LANGUAGE SQL;
--
-- SELECT clean_EMP(); SELECT clean_EMP();
--
-- SELECT * FROM EMP; SELECT * FROM EMP;
----------------------------- -----------------------------