im trying to read a json api with the postgres copy from program command
when i call
COPY _temp FROM PROGRAM 'curl -uri "https://url"'; it works fine but the api has paging and i need to loop through multiple calls
when i call it like this
_command := 'curl -uri "https://url?&page='||(10::text)||"'; COPY _temp FROM PROGRAM _command;
ERROR: syntax error at or near "_command"
this doesnt work either, you cant even concatenate in place
COPY _temp FROM PROGRAM 'curl -uri "https://url?&page='||(10::text)||'"';
percent parametric replacement like raise notice style doesnt work either
what gives? program is a literal string with single quotes ‘ ‘ so whats the difference between specifying a literal string and using a text or varchar variable? there doesnt seem to be any ‘program’ data type ::program cast does nothing, what am i missing?
in the docs it says “it is best to use a fixed command string” not that you can only use a fixed command string….
how do i use a dynamic command string?
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