Re: log bind parameter values on error

So, if some parameters are large (they can be up to 1 GB-1, remember)
then we can bloat the log file severely.  I think we need to place an
upper limit on the strings that we're going to log -- as inspiration,
callers of ExecBuildValueDescription uses 64 chars per value maximum.
Something like that seems reasonable.  So I think you need to add some
pg_mbcliplen() calls in a couple of places in exec_bind_message.

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Álvaro Herrera                https://www.2ndQuadrant.com/
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