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From Marcos Pegoraro
Subject Re: Mathematical Functions and Operators
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Msg-id CAB-JLwZ1Ga7TFuZ_1RstE8Pxw8WpmVNGhK_kVj_YEuCRpt9UEw@mail.gmail.com
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In response to Re: Mathematical Functions and Operators  ("David G. Johnston" <david.g.johnston@gmail.com>)
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Em qua., 9 de out. de 2024 às 18:23, David G. Johnston <david.g.johnston@gmail.com> escreveu:

Replaceable means the user is expected to substitute an expression in that location.  One cannot specify a function name using an expression.

Sorry, I thought function parameters but said names. So, function params should have <replaceable> too ?
If you see JSON functions there are functions that their params have <replaceable> tag

json_array ( [ query_expression ] [ RETURNING data_type [ FORMAT JSON [ ENCODING UTF8 ] ] ])
json_scalar ( expression )
json_serialize ( expression [ FORMAT JSON [ ENCODING UTF8 ] ] [ RETURNING data_type [ FORMAT JSON [ ENCODING UTF8 ] ] ] )

they are fine, but a lot of others don't

to_json ( anyelement ) → json
json_object ( text[] ) → json

regars
Marcos

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