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Re: column name gets substitudes inside an execute statement of a trigger function. how to avoid it?!

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G. Allegri wrote:

ERROR: Column 'lets_try' does not exist
LINE 1: INSERT INTO seconda (nome) VALUES ('lets_try')

My function and trigger are:

CREATE OR REPLACE FUNCTION fun1() RETURNS TRIGGER AS
$primaprova$
DECLARE
nome varchar;
BEGIN
IF (TG_OP='INSERT') THEN
execute 'INSERT INTO ' || NEW.table || ' (nome) VALUES( "' || NEW.nome
|| '" );';

This will give VALUES ("lets_try") which is not a valid way to quote a string. It *is* a valid way to quote an identifier (e.g. a column).

You probably want to use the quote_literal() function anyway to escape any single-quotes in the value being quoted.

--
  Richard Huxton
  Archonet Ltd

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