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Merge macbook.gmz:/Users/kgeorge/mysql/work/B21174-5.0-opt
into macbook.gmz:/Users/kgeorge/mysql/work/B21174-5.1-opt mysql-test/r/ctype_ucs.result: Auto merged mysql-test/r/func_gconcat.result: Auto merged mysql-test/r/func_group.result: Auto merged mysql-test/r/group_by.result: Auto merged mysql-test/r/subselect.result: Auto merged mysql-test/r/view.result: Auto merged mysql-test/t/ctype_ucs.test: Auto merged mysql-test/t/func_gconcat.test: Auto merged mysql-test/t/ps.test: Auto merged mysql-test/t/view.test: Auto merged sql/field.h: Auto merged sql/filesort.cc: Auto merged sql/item.cc: Auto merged sql/item_sum.cc: Auto merged sql/mysql_priv.h: Auto merged sql/sql_lex.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_yacc.yy: Auto merged storage/myisam/mi_check.c: Auto merged mysql-test/r/ps.result: merge 5.0-opt -> 5.1-opt sql/unireg.cc: merge 5.0-opt -> 5.1-opt
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@ -660,3 +660,12 @@ CHAR_LENGTH( GROUP_CONCAT(b) )
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240001
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SET GROUP_CONCAT_MAX_LEN = 1024;
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DROP TABLE t1;
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CREATE TABLE t1 (a int, b int);
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INSERT INTO t1 VALUES (2,1), (1,2), (2,2), (1,3);
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SELECT GROUP_CONCAT(a), x
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FROM (SELECT a, GROUP_CONCAT(b) x FROM t1 GROUP BY a) AS s
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GROUP BY x;
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GROUP_CONCAT(a) x
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2 1,2
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1 2,3
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DROP TABLE t1;
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