1
drop table if exists t1,t2;
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select 1, 1.0, -1, "hello", NULL;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
4
def 1 8 1 1 N 32897 0 63
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def 1.0 246 4 3 N 129 1 63
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def -1 8 2 2 N 32897 0 63
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def hello 253 5 5 N 1 31 8
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def NULL 6 0 0 Y 32896 0 63
11
create table t1 (a tinyint, b smallint, c mediumint, d int, e bigint, f float(3,2), g double(4,3), h decimal(5,4), i year, j date, k timestamp, l datetime, m enum('a','b'), n set('a','b'), o char(10));
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
14
def test t1 t1 a a 1 4 0 Y 32768 0 63
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def test t1 t1 b b 2 6 0 Y 32768 0 63
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def test t1 t1 c c 9 9 0 Y 32768 0 63
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def test t1 t1 d d 3 11 0 Y 32768 0 63
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def test t1 t1 e e 8 20 0 Y 32768 0 63
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def test t1 t1 f f 4 3 0 Y 32768 2 63
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def test t1 t1 g g 5 4 0 Y 32768 3 63
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def test t1 t1 h h 246 7 0 Y 0 4 63
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def test t1 t1 i i 13 4 0 Y 32864 0 63
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def test t1 t1 j j 10 10 0 Y 128 0 63
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def test t1 t1 k k 7 19 0 N 9441 0 63
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def test t1 t1 l l 12 19 0 Y 128 0 63
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def test t1 t1 m m 254 1 0 Y 256 0 8
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def test t1 t1 n n 254 3 0 Y 2048 0 8
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def test t1 t1 o o 254 10 0 Y 0 0 8
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a b c d e f g h i j k l m n o
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select a b, b c from t1 as t2;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
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def test t1 t2 a b 1 4 0 Y 32768 0 63
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def test t1 t2 b c 2 6 0 Y 32768 0 63
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CREATE TABLE t1 (id tinyint(3) default NULL, data varchar(255) default NULL);
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INSERT INTO t1 VALUES (1,'male'),(2,'female');
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CREATE TABLE t2 (id tinyint(3) unsigned default NULL, data char(3) default '0');
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INSERT INTO t2 VALUES (1,'yes'),(2,'no');
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select t1.id, t1.data, t2.data from t1, t2 where t1.id = t2.id;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
42
def test t1 t1 id id 1 3 1 Y 32768 0 63
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def test t1 t1 data data 253 255 6 Y 0 0 8
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def test t2 t2 data data 254 3 3 Y 0 0 8
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select t1.id, t1.data, t2.data from t1, t2 where t1.id = t2.id order by t1.id;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
50
def test t1 t1 id id 1 3 1 Y 32768 0 63
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def test t1 t1 data data 253 255 6 Y 0 0 8
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def test t2 t2 data data 254 3 3 Y 0 0 8
56
select t1.id from t1 union select t2.id from t2;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
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def id id 1 4 1 Y 32768 0 63
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create table t1 ( a int, b varchar(30), primary key(a));
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insert into t1 values (1,'one');
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insert into t1 values (2,'two');
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select @arg00 FROM t1 where a=1 union distinct select 1 FROM t1 where a=1;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
69
def @arg00 @arg00 8 20 1 Y 32768 0 63
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select * from (select @arg00) aaa;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
74
def aaa @arg00 @arg00 8 20 1 Y 32768 0 63
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select 1 union select 1;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
79
def 1 1 8 20 1 N 32769 0 63
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select * from (select 1 union select 1) aaa;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
84
def aaa 1 1 8 20 1 N 32769 0 63
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create table t1 (i int);
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insert into t1 values (1),(2),(3);
90
select * from t1 where i = 2;
94
info: Records: 3 Duplicates: 0 Warnings: 0
99
create table t1 (id int(10));
100
insert into t1 values (1);
101
CREATE VIEW v1 AS select t1.id as id from t1;
102
CREATE VIEW v2 AS select t1.id as renamed from t1;
103
CREATE VIEW v3 AS select t1.id + 12 as renamed from t1;
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select * from v1 group by id limit 1;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
106
def test t1 v1 id id 3 10 1 Y 32768 0 63
109
select * from v1 group by id limit 0;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
111
def test t1 v1 id id 3 10 0 Y 32768 0 63
113
select * from v1 where id=1000 group by id;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
115
def test t1 v1 id id 3 10 0 Y 32768 0 63
117
select * from v1 where id=1 group by id;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
119
def test t1 v1 id id 3 10 1 Y 32768 0 63
122
select * from v2 where renamed=1 group by renamed;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
124
def test t1 v2 id renamed 3 10 1 Y 32768 0 63
127
select * from v3 where renamed=1 group by renamed;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
129
def v3 renamed 8 12 0 Y 32896 0 63
133
select a.* from (select 2147483648 as v_large) a;
134
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
135
def a v_large v_large 8 10 10 N 32769 0 63
138
select a.* from (select 214748364 as v_small) a;
139
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
140
def a v_small v_small 3 9 9 N 32769 0 63
143
CREATE TABLE t1 (c1 CHAR(1));
144
CREATE TABLE t2 (c2 CHAR(1));
145
CREATE VIEW v1 AS SELECT t1.c1 FROM t1;
146
CREATE VIEW v2 AS SELECT t2.c2 FROM t2;
147
INSERT INTO t1 VALUES ('1'), ('2'), ('3');
148
INSERT INTO t2 VALUES ('1'), ('2'), ('3'), ('2');
149
SELECT v1.c1 FROM v1 JOIN t2 ON c1=c2 ORDER BY 1;
150
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
151
def test t1 v1 c1 c1 254 1 1 Y 0 0 8
157
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2;
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Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
159
def test t1 v1 c1 c1 254 1 1 Y 0 0 8
160
def test t2 v2 c2 c2 254 1 1 Y 0 0 8
166
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2 GROUP BY v1.c1;
167
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
168
def test t1 v1 c1 c1 254 1 1 Y 32768 0 8
169
def test t2 v2 c2 c2 254 1 1 Y 0 0 8
174
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2 GROUP BY v1.c1 ORDER BY v2.c2;
175
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
176
def test t1 v1 c1 c1 254 1 1 Y 32768 0 8
177
def test t2 v2 c2 c2 254 1 1 Y 0 0 8