Export connection pool errors for public consumption #3380
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The
internal/pool
package has some structured errors:ErrClosed
ErrPoolExhausted
ErrPoolTimeout
These errors may be propagated to the callsites of top-level commands on the connection. Exposing these errors in the public package layer makes it much easier for external code to detect and classify these errors, e.g. as:
This change proposes re-exporting the remaining
ErrPool*
errors, adding toErrClosed
which is already re-exported.See also: #3381