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acfd169c8e
Adds a concept of a "removed" query option that has no effect but does not return an error when a user attempts to set it. These options are not returned by "set" or "set all" commands that are executed in impala-shell or server-side. These query options have been deprecated for several releases: DEFAULT_ORDER_BY_LIMIT, ABORT_ON_DEFAULT_LIMIT_EXCEEDED, V_CPU_CORES, RESERVATION_REQUEST_TIMEOUT, RM_INITIAL_MEM, SCAN_NODE_CODEGEN_THRESHOLD, MAX_IO_BUFFERS RM_INITIAL_MEM did still have an effect, but it was undocumented and MEM_LIMIT should be used in preference. DISABLE_CACHED_READS also had an effect but it was documented as deprecated. Otherwise the options had no effect at all. Testing: Ran exhaustive build. Updated query option tests to reflect the new behaviour. Cherry-picks: not for 2.x. Change-Id: I9e742e9b0eca0e5c81fd71db3122fef31522fcad Reviewed-on: http://gerrit.cloudera.org:8080/9118 Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com> Tested-by: Impala Public Jenkins