Re: BUG #18774: Not the required output of the query used in the function(delete_from_table1) in postgresql9.4

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От David G. Johnston
Тема Re: BUG #18774: Not the required output of the query used in the function(delete_from_table1) in postgresql9.4
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Msg-id CAKFQuwZZ8sbxm-uawXi_UOWLnd5oordYdLYpfif-UQPpwDr7kg@mail.gmail.com
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On Sunday, February 2, 2025, Rajni Bobal <rajnibobal@gmail.com> wrote:

as per the documentation, following query execute successfully :
EXECUTE 'SELECT count(*) FROM '    || quote_ident(tabname)    || ' WHERE inserted_by = $1 AND inserted <= $2'   INTO c   USING checked_user, checked_date;

HERE, $1 and $2 are strings and its values are substituted in the query. Please clarify, may be i am missing something.

Ask yourself why “quote_ident(tabname)” is used to insert the table name into the SQL string via concatenation instead of also using a number placeholder.

David J.

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