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Re: Backward compatibility

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On 7/20/2017 7:57 PM, David G. Johnston wrote:

Actually, The docs do cover how to do this directly in libpq.

odds are pretty good that...

PQserverVersion











Returns an integer representing the backend version.

int PQserverVersion(const PGconn *conn);

Applications might use this function to determine the version of the database server they are connected to. The number is formed by converting the major, minor, and revision numbers into two-decimal-digit numbers and appending them together. For example, version 8.1.5 will be returned as 80105, and version 8.2 will be returned as 80200 (leading zeroes are not shown). Zero is returned if the connection is bad.


Actually invokes `show server_version_num;'



-- 
john r pierce, recycling bits in santa cruz

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