correct code of warning of group_concat
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@ -150,10 +150,10 @@ grp group_concat(c)
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4
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5 NULL
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Warnings:
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Warning 1250 1 line(s) was(were) cut by group_concat()
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Warning 1254 1 line(s) was(were) cut by group_concat()
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show warnings;
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Level Code Message
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Warning 1250 1 line(s) was(were) cut by group_concat()
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Warning 1254 1 line(s) was(were) cut by group_concat()
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select group_concat(sum(a)) from t1 group by grp;
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Invalid use of group function
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select grp,group_concat(c order by 2) from t1 group by grp;
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