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# # Test of count(distinct ..) # --disable_warnings drop table if exists t1; --enable_warnings create table t1(n int not null, key(n)); let $1=100; disable_query_log; begin; while ($1) { eval insert into t1 values($1); eval insert into t1 values($1); dec $1; } commit; enable_query_log; select count(distinct n) from t1; explain extended select count(distinct n) from t1; drop table t1; # End of 4.1 tests |