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92fc127878
When libpqrcv_connect (also known as walrcv_connect()) failed, it leaked the libpq connection. In most paths that's fairly harmless, as the calling process will exit soon after. But e.g. CREATE SUBSCRIPTION could lead to a somewhat longer lived leak. Fix by releasing resources, including the libpq connection, on error. Add a test exercising the error code path. To make it reliable and safe, the test tries to connect to port=-1, which happens to fail during connection establishment, rather than during connection string parsing. Reviewed-by: Noah Misch <noah@leadboat.com> Discussion: https://postgr.es/m/20230121011237.q52apbvlarfv6jm6@awork3.anarazel.de Backpatch: 11- |
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