302 lines
18 KiB
Plaintext
302 lines
18 KiB
Plaintext
set tidb_cost_model_version=1;
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create database collation_agg_func;
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use collation_agg_func;
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create table t(id int, value varchar(20) charset utf8mb4 collate utf8mb4_general_ci, value1 varchar(20) charset utf8mb4 collate utf8mb4_bin);
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insert into t values (1, 'abc', 'abc '),(4, 'Abc', 'abc'),(3,'def', 'def '), (5, 'abc', 'ABC');
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desc format='brief' select group_concat(value order by 1) from t;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:group_concat(collation_agg_func.t.value order by collation_agg_func.t.value separator ",")->Column#5
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select group_concat(value order by 1) from t;
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group_concat(value order by 1)
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Abc,abc,abc,def
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desc format='brief' select group_concat(value) from t;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:group_concat(collation_agg_func.t.value separator ",")->Column#5
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select group_concat(value) from t;
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group_concat(value)
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abc,Abc,def,abc
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desc format='brief' select group_concat(value collate utf8mb4_bin) from t;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:group_concat(Column#6 separator ",")->Column#5
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└─Projection 10000.00 root cast(collation_agg_func.t.value, varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#6
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select group_concat(value collate utf8mb4_bin) from t;
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group_concat(value collate utf8mb4_bin)
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abc,Abc,def,abc
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desc format='brief' select group_concat(distinct value order by 1) from t;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:group_concat(distinct collation_agg_func.t.value order by collation_agg_func.t.value separator ",")->Column#5
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select upper(group_concat(distinct value order by 1)) from t;
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upper(group_concat(distinct value order by 1))
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ABC,DEF
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desc format='brief' select group_concat(distinct value collate utf8mb4_bin order by 1) from t;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:group_concat(distinct Column#6 order by Column#7 separator ",")->Column#5
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└─Projection 10000.00 root cast(collation_agg_func.t.value, varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#6, cast(collation_agg_func.t.value, varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#7
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select upper(group_concat(distinct value collate utf8mb4_bin order by 1)) from t;
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upper(group_concat(distinct value collate utf8mb4_bin order by 1))
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ABC,ABC,DEF
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desc format='brief' select group_concat(distinct value) from t;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:group_concat(distinct collation_agg_func.t.value separator ",")->Column#5
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select upper(group_concat(distinct value)) from t;
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upper(group_concat(distinct value))
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ABC,DEF
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desc format='brief' select group_concat(distinct value collate utf8mb4_bin) from t;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:group_concat(distinct Column#6 separator ",")->Column#5
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└─Projection 10000.00 root cast(collation_agg_func.t.value, varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#6
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select upper(group_concat(distinct value collate utf8mb4_bin)) from t;
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upper(group_concat(distinct value collate utf8mb4_bin))
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ABC,ABC,DEF
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desc format='brief' select count(distinct value) from t;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:count(distinct collation_agg_func.t.value)->Column#5
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select count(distinct value) from t;
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count(distinct value)
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2
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desc format='brief' select count(distinct value collate utf8mb4_bin) from t;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:count(distinct Column#6)->Column#5
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└─Projection 10000.00 root cast(collation_agg_func.t.value, varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#6
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select count(distinct value collate utf8mb4_bin) from t;
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count(distinct value collate utf8mb4_bin)
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3
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desc format='brief' select count(distinct value, value1) from t;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:count(distinct collation_agg_func.t.value, collation_agg_func.t.value1)->Column#5
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select count(distinct value, value1) from t;
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count(distinct value, value1)
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3
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desc format='brief' select count(distinct value collate utf8mb4_bin, value1) from t;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:count(distinct Column#6, Column#7)->Column#5
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└─Projection 10000.00 root cast(collation_agg_func.t.value, varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#6, collation_agg_func.t.value1->Column#7
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select count(distinct value collate utf8mb4_bin, value1) from t;
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count(distinct value collate utf8mb4_bin, value1)
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4
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desc format='brief' select approx_count_distinct(value) from t;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:approx_count_distinct(collation_agg_func.t.value)->Column#5
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select approx_count_distinct(value) from t;
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approx_count_distinct(value)
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2
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desc format='brief' select approx_count_distinct(value collate utf8mb4_bin) from t;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:approx_count_distinct(Column#6)->Column#5
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└─Projection 10000.00 root cast(collation_agg_func.t.value, varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#6
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select approx_count_distinct(value collate utf8mb4_bin) from t;
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approx_count_distinct(value collate utf8mb4_bin)
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3
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desc format='brief' select approx_count_distinct(value, value1) from t;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:approx_count_distinct(collation_agg_func.t.value, collation_agg_func.t.value1)->Column#5
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select approx_count_distinct(value, value1) from t;
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approx_count_distinct(value, value1)
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3
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desc format='brief' select approx_count_distinct(value collate utf8mb4_bin, value1) from t;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:approx_count_distinct(Column#6, Column#7)->Column#5
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└─Projection 10000.00 root cast(collation_agg_func.t.value, varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#6, collation_agg_func.t.value1->Column#7
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:t keep order:false, stats:pseudo
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select approx_count_distinct(value collate utf8mb4_bin, value1) from t;
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approx_count_distinct(value collate utf8mb4_bin, value1)
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4
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create table tt(a char(10), b enum('a', 'B', 'c'), c set('a', 'B', 'c'), d json) collate utf8mb4_general_ci;
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insert into tt values ("a", "a", "a", JSON_OBJECT("a", "a"));
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insert into tt values ("A", "A", "A", JSON_OBJECT("A", "A"));
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insert into tt values ("b", "b", "b", JSON_OBJECT("b", "b"));
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insert into tt values ("B", "B", "B", JSON_OBJECT("B", "B"));
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insert into tt values ("c", "c", "c", JSON_OBJECT("c", "c"));
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insert into tt values ("C", "C", "C", JSON_OBJECT("C", "C"));
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split table tt by (0), (1), (2), (3), (4), (5);
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desc format='brief' select min(a) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:min(collation_agg_func.tt.a)->Column#6
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└─TopN 1.00 root collation_agg_func.tt.a, offset:0, count:1
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] collation_agg_func.tt.a, offset:0, count:1
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└─Selection 9990.00 cop[tikv] not(isnull(collation_agg_func.tt.a))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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desc format='brief' select lower(min(a)) from tt;
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id estRows task access object operator info
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Projection 1.00 root lower(Column#6)->Column#7
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└─StreamAgg 1.00 root funcs:min(collation_agg_func.tt.a)->Column#6
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└─TopN 1.00 root collation_agg_func.tt.a, offset:0, count:1
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] collation_agg_func.tt.a, offset:0, count:1
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└─Selection 9990.00 cop[tikv] not(isnull(collation_agg_func.tt.a))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select lower(min(a)) from tt;
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lower(min(a))
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a
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desc format='brief' select min(a collate utf8mb4_bin) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:min(Column#8)->Column#6
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└─Projection 1.00 root cast(collation_agg_func.tt.a, char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#8
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└─Projection 1.00 root collation_agg_func.tt.a
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└─TopN 1.00 root Column#7, offset:0, count:1
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└─Projection 1.00 root collation_agg_func.tt.a, cast(collation_agg_func.tt.a, char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#7
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] cast(collation_agg_func.tt.a, char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin), offset:0, count:1
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└─Selection 8000.00 cop[tikv] not(isnull(cast(collation_agg_func.tt.a, char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select min(a collate utf8mb4_bin) from tt;
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min(a collate utf8mb4_bin)
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A
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desc format='brief' select max(a) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:max(collation_agg_func.tt.a)->Column#6
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└─TopN 1.00 root collation_agg_func.tt.a:desc, offset:0, count:1
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] collation_agg_func.tt.a:desc, offset:0, count:1
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└─Selection 9990.00 cop[tikv] not(isnull(collation_agg_func.tt.a))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select max(a) from tt;
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max(a)
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c
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desc format='brief' select max(a collate utf8mb4_bin) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:max(Column#8)->Column#6
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└─Projection 1.00 root cast(collation_agg_func.tt.a, char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#8
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└─Projection 1.00 root collation_agg_func.tt.a
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└─TopN 1.00 root Column#7:desc, offset:0, count:1
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└─Projection 1.00 root collation_agg_func.tt.a, cast(collation_agg_func.tt.a, char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#7
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] cast(collation_agg_func.tt.a, char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin):desc, offset:0, count:1
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└─Selection 8000.00 cop[tikv] not(isnull(cast(collation_agg_func.tt.a, char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select max(a collate utf8mb4_bin) from tt;
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max(a collate utf8mb4_bin)
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c
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desc format='brief' select min(b) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:min(Column#8)->Column#6
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└─TableReader 1.00 root data:StreamAgg
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└─StreamAgg 1.00 cop[tikv] funcs:min(collation_agg_func.tt.b)->Column#8
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select min(b) from tt;
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min(b)
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a
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desc format='brief' select min(b collate utf8mb4_bin) from tt;
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Error 1235 (42000): This version of TiDB doesn't yet support 'use collate clause for enum or set'
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select min(b collate utf8mb4_bin) from tt;
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Error 1235 (42000): This version of TiDB doesn't yet support 'use collate clause for enum or set'
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desc format='brief' select max(b) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:max(Column#8)->Column#6
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└─TableReader 1.00 root data:StreamAgg
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└─StreamAgg 1.00 cop[tikv] funcs:max(collation_agg_func.tt.b)->Column#8
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select max(b) from tt;
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max(b)
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c
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desc format='brief' select max(b collate utf8mb4_bin) from tt;
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Error 1235 (42000): This version of TiDB doesn't yet support 'use collate clause for enum or set'
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select max(b collate utf8mb4_bin) from tt;
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Error 1235 (42000): This version of TiDB doesn't yet support 'use collate clause for enum or set'
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desc format='brief' select min(c) from tt;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:min(collation_agg_func.tt.c)->Column#6
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select min(c) from tt;
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min(c)
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a
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desc format='brief' select min(c collate utf8mb4_bin) from tt;
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Error 1235 (42000): This version of TiDB doesn't yet support 'use collate clause for enum or set'
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select min(c collate utf8mb4_bin) from tt;
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Error 1235 (42000): This version of TiDB doesn't yet support 'use collate clause for enum or set'
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desc format='brief' select max(c) from tt;
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id estRows task access object operator info
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HashAgg 1.00 root funcs:max(collation_agg_func.tt.c)->Column#6
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└─TableReader 10000.00 root data:TableFullScan
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select max(c) from tt;
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max(c)
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c
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desc format='brief' select max(c collate utf8mb4_bin) from tt;
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Error 1235 (42000): This version of TiDB doesn't yet support 'use collate clause for enum or set'
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select max(c collate utf8mb4_bin) from tt;
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Error 1235 (42000): This version of TiDB doesn't yet support 'use collate clause for enum or set'
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desc format='brief' select min(d) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:min(collation_agg_func.tt.d)->Column#6
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└─TopN 1.00 root collation_agg_func.tt.d, offset:0, count:1
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] collation_agg_func.tt.d, offset:0, count:1
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└─Selection 8000.00 cop[tikv] not(isnull(cast(collation_agg_func.tt.d, var_string(4294967295))))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select min(d) from tt;
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min(d)
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{"A": "A"}
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desc format='brief' select min(d collate utf8mb4_bin) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:min(Column#8)->Column#6
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└─Projection 1.00 root cast(collation_agg_func.tt.d, longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#8
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└─Projection 1.00 root collation_agg_func.tt.d
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└─TopN 1.00 root Column#7, offset:0, count:1
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└─Projection 1.00 root collation_agg_func.tt.d, cast(collation_agg_func.tt.d, longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#7
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] cast(collation_agg_func.tt.d, longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin), offset:0, count:1
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└─Selection 8000.00 cop[tikv] not(isnull(cast(collation_agg_func.tt.d, longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select min(d collate utf8mb4_bin) from tt;
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min(d collate utf8mb4_bin)
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{"A": "A"}
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desc format='brief' select max(d) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:max(collation_agg_func.tt.d)->Column#6
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└─TopN 1.00 root collation_agg_func.tt.d:desc, offset:0, count:1
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] collation_agg_func.tt.d:desc, offset:0, count:1
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└─Selection 8000.00 cop[tikv] not(isnull(cast(collation_agg_func.tt.d, var_string(4294967295))))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select max(d) from tt;
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max(d)
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{"c": "c"}
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desc format='brief' select max(d collate utf8mb4_bin) from tt;
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id estRows task access object operator info
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StreamAgg 1.00 root funcs:max(Column#8)->Column#6
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└─Projection 1.00 root cast(collation_agg_func.tt.d, longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#8
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└─Projection 1.00 root collation_agg_func.tt.d
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└─TopN 1.00 root Column#7:desc, offset:0, count:1
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└─Projection 1.00 root collation_agg_func.tt.d, cast(collation_agg_func.tt.d, longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)->Column#7
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└─TableReader 1.00 root data:TopN
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└─TopN 1.00 cop[tikv] cast(collation_agg_func.tt.d, longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin):desc, offset:0, count:1
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└─Selection 8000.00 cop[tikv] not(isnull(cast(collation_agg_func.tt.d, longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin)))
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└─TableFullScan 10000.00 cop[tikv] table:tt keep order:false, stats:pseudo
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select max(d collate utf8mb4_bin) from tt;
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max(d collate utf8mb4_bin)
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{"c": "c"}
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drop database collation_agg_func;
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use test
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