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1
by brian
clean slate |
1 |
drop table if exists t1;
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2 |
select (1,2,3) IN ((3,2,3), (1,2,3), (1,3,3));
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3 |
(1,2,3) IN ((3,2,3), (1,2,3), (1,3,3))
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4 |
1
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5 |
select row(10,2,3) IN (row(3,2,3), row(1,2,3), row(1,3,3));
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6 |
row(10,2,3) IN (row(3,2,3), row(1,2,3), row(1,3,3))
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7 |
0
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8 |
select row(1,2,3) IN (row(3,NULL,3), row(1,2,3), row(1,3,3));
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9 |
row(1,2,3) IN (row(3,NULL,3), row(1,2,3), row(1,3,3))
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10 |
1
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11 |
select row(10,2,3) IN (row(3,NULL,3), row(1,2,3), row(1,3,3));
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12 |
row(10,2,3) IN (row(3,NULL,3), row(1,2,3), row(1,3,3))
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13 |
0
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14 |
select row('a',1.5,3) IN (row(1,2,3), row('a',1.5,3), row('a','a','a'));
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15 |
row('a',1.5,3) IN (row(1,2,3), row('a',1.5,3), row('a','a','a'))
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16 |
1
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17 |
Warnings:
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18 |
Warning 1292 Truncated incorrect DECIMAL value: 'a'
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19 |
Warning 1292 Truncated incorrect INTEGER value: 'a'
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20 |
select row('a',0,3) IN (row(3,2,3), row('a','a','3'), row(1,3,3));
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21 |
row('a',0,3) IN (row(3,2,3), row('a','a','3'), row(1,3,3))
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22 |
1
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23 |
Warnings:
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24 |
Warning 1292 Truncated incorrect INTEGER value: 'a'
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25 |
select row('a',0,3) IN (row(3,2,3), row('a','0','3'), row(1,3,3));
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26 |
row('a',0,3) IN (row(3,2,3), row('a','0','3'), row(1,3,3))
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27 |
1
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28 |
select row('a',1.5,3) IN (row(3,NULL,3), row('a',1.5,3), row(1,3,3));
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29 |
row('a',1.5,3) IN (row(3,NULL,3), row('a',1.5,3), row(1,3,3))
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30 |
1
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31 |
select row('b',1.5,3) IN (row(3,NULL,3), row('a',1.5,3), row(1,3,3));
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32 |
row('b',1.5,3) IN (row(3,NULL,3), row('a',1.5,3), row(1,3,3))
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33 |
0
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34 |
select row('b',1.5,3) IN (row('b',NULL,3), row('a',1.5,3), row(1,3,3));
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35 |
row('b',1.5,3) IN (row('b',NULL,3), row('a',1.5,3), row(1,3,3))
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36 |
NULL
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37 |
select row('b',1.5,3) IN (row('b',NULL,4), row('a',1.5,3), row(1,3,3));
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38 |
row('b',1.5,3) IN (row('b',NULL,4), row('a',1.5,3), row(1,3,3))
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39 |
0
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40 |
select (1,2,(3,4)) IN ((3,2,(3,4)), (1,2,(3,4)));
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41 |
(1,2,(3,4)) IN ((3,2,(3,4)), (1,2,(3,4)))
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42 |
1
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43 |
select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,4));
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44 |
ERROR 21000: Operand should contain 2 column(s)
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45 |
select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)));
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46 |
row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)))
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47 |
NULL
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48 |
explain extended select row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)));
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49 |
id select_type table type possible_keys key key_len ref rows filtered Extra
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50 |
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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51 |
Warnings:
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52 |
Note 1003 select ((1,2,(3,4)) in ((3,2,(3,4)),(1,2,(3,NULL)))) AS `row(1,2,row(3,4)) IN (row(3,2,row(3,4)), row(1,2,row(3,NULL)))`
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53 |
SELECT (1,2,3)=(0,NULL,3);
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54 |
(1,2,3)=(0,NULL,3)
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55 |
0
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56 |
SELECT (1,2,3)=(1,NULL,3);
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57 |
(1,2,3)=(1,NULL,3)
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58 |
NULL
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59 |
SELECT (1,2,3)=(1,NULL,0);
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60 |
(1,2,3)=(1,NULL,0)
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61 |
0
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62 |
SELECT ROW(1,2,3)=ROW(1,2,3);
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63 |
ROW(1,2,3)=ROW(1,2,3)
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64 |
1
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65 |
SELECT ROW(2,2,3)=ROW(1+1,2,3);
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66 |
ROW(2,2,3)=ROW(1+1,2,3)
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67 |
1
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68 |
SELECT ROW(1,2,3)=ROW(1+1,2,3);
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69 |
ROW(1,2,3)=ROW(1+1,2,3)
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70 |
0
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71 |
SELECT ROW(1,2,3)<ROW(1+1,2,3);
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72 |
ROW(1,2,3)<ROW(1+1,2,3)
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73 |
1
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74 |
SELECT ROW(1,2,3)>ROW(1+1,2,3);
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75 |
ROW(1,2,3)>ROW(1+1,2,3)
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76 |
0
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77 |
SELECT ROW(1,2,3)<=ROW(1+1,2,3);
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78 |
ROW(1,2,3)<=ROW(1+1,2,3)
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79 |
1
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80 |
SELECT ROW(1,2,3)>=ROW(1+1,2,3);
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81 |
ROW(1,2,3)>=ROW(1+1,2,3)
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82 |
0
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83 |
SELECT ROW(1,2,3)<>ROW(1+1,2,3);
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84 |
ROW(1,2,3)<>ROW(1+1,2,3)
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85 |
1
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86 |
SELECT ROW(NULL,2,3)=ROW(NULL,2,3);
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ROW(NULL,2,3)=ROW(NULL,2,3)
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88 |
NULL
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89 |
SELECT ROW(NULL,2,3)<=>ROW(NULL,2,3);
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90 |
ROW(NULL,2,3)<=>ROW(NULL,2,3)
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91 |
1
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92 |
SELECT ROW(1,2,ROW(3,4,5))=ROW(1,2,ROW(3,4,5));
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93 |
ROW(1,2,ROW(3,4,5))=ROW(1,2,ROW(3,4,5))
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94 |
1
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95 |
SELECT ROW('test',2,3.33)=ROW('test',2,3.33);
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96 |
ROW('test',2,3.33)=ROW('test',2,3.33)
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97 |
1
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98 |
SELECT ROW('test',2,3.33)=ROW('test',2,3.33,4);
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99 |
ERROR 21000: Operand should contain 3 column(s)
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100 |
SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,33));
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101 |
ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,33))
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102 |
1
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103 |
SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,3));
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104 |
ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,3))
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105 |
0
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106 |
SELECT ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,NULL));
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107 |
ROW('test',2,ROW(3,33))=ROW('test',2,ROW(3,NULL))
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108 |
NULL
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109 |
SELECT ROW('test',2,ROW(3,33))=ROW('test',2,4);
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110 |
ERROR 21000: Operand should contain 2 column(s)
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111 |
create table t1 ( a int, b int, c int);
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112 |
insert into t1 values (1,2,3), (2,3,1), (3,2,1), (1,2,NULL);
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113 |
select * from t1 where ROW(1,2,3)=ROW(a,b,c);
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114 |
a b c
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115 |
1 2 3
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116 |
select * from t1 where ROW(0,2,3)=ROW(a,b,c);
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117 |
a b c
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118 |
select * from t1 where ROW(1,2,3)<ROW(a,b,c);
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119 |
a b c
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120 |
2 3 1
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121 |
3 2 1
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122 |
select ROW(a,2,3) IN(row(1,b,c), row(2,3,1)) from t1;
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123 |
ROW(a,2,3) IN(row(1,b,c), row(2,3,1))
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124 |
1
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125 |
0
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126 |
0
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127 |
NULL
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128 |
select ROW(c,2,3) IN(row(1,b,a), row(2,3,1)) from t1;
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129 |
ROW(c,2,3) IN(row(1,b,a), row(2,3,1))
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130 |
0
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131 |
0
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132 |
1
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133 |
NULL
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134 |
select ROW(a,b,c) IN(row(1,2,3), row(3,2,1)) from t1;
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135 |
ROW(a,b,c) IN(row(1,2,3), row(3,2,1))
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136 |
1
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137 |
0
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138 |
1
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139 |
NULL
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140 |
select ROW(1,2,3) IN(row(a,b,c), row(1,2,3)) from t1;
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141 |
ROW(1,2,3) IN(row(a,b,c), row(1,2,3))
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142 |
1
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143 |
1
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144 |
1
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145 |
1
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146 |
drop table t1;
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147 |
select ROW(1,1);
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148 |
ERROR 21000: Operand should contain 1 column(s)
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149 |
create table t1 (i int);
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150 |
select 1 from t1 where ROW(1,1);
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151 |
ERROR 21000: Operand should contain 1 column(s)
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152 |
select count(*) from t1 order by ROW(1,1);
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153 |
ERROR 21000: Operand should contain 1 column(s)
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154 |
select count(*) from t1 having (1,1) order by i;
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155 |
ERROR 21000: Operand should contain 1 column(s)
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156 |
drop table t1;
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157 |
create table t1 (a int, b int);
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158 |
insert into t1 values (1, 4);
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159 |
insert into t1 values (10, 40);
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160 |
insert into t1 values (1, 4);
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161 |
insert into t1 values (10, 43);
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162 |
insert into t1 values (1, 4);
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163 |
insert into t1 values (10, 41);
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164 |
insert into t1 values (1, 4);
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165 |
insert into t1 values (10, 43);
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166 |
insert into t1 values (1, 4);
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167 |
select a, MAX(b), (1, MAX(b)) = (1, 4) from t1 group by a;
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168 |
a MAX(b) (1, MAX(b)) = (1, 4)
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169 |
1 4 1
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170 |
10 43 0
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171 |
drop table t1;
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172 |
SELECT ROW(2,10) <=> ROW(3,4);
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173 |
ROW(2,10) <=> ROW(3,4)
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174 |
0
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175 |
SELECT ROW(NULL,10) <=> ROW(3,NULL);
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176 |
ROW(NULL,10) <=> ROW(3,NULL)
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177 |
0
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178 |
SELECT ROW(1,ROW(2,3)) IN (ROW(1,ROW(2,3)),ROW(1,1));
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179 |
ERROR 21000: Operand should contain 2 column(s)
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180 |
SELECT ROW(1,ROW(2,3)) IN (ROW(1,ROW(2,3)),ROW(1,1),ROW(1,ROW(2,3)));
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181 |
ERROR 21000: Operand should contain 2 column(s)
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182 |
SELECT ROW(1,ROW(2,3)) IN (ROW(1,ROW(2,3)),ROW(1,ROW(2,2,2)));
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183 |
ERROR 21000: Operand should contain 2 column(s)
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184 |
SELECT ROW(1,ROW(2,3,4)) IN (ROW(1,ROW(2,3,4)),ROW(1,ROW(2,2)));
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185 |
ERROR 21000: Operand should contain 3 column(s)
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186 |
SELECT ROW(1,ROW(2,3)) IN (ROW(1,ROW(2,3)),(SELECT 1,1));
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187 |
ERROR 21000: Operand should contain 2 column(s)
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188 |
SELECT ROW(1,ROW(2,3)) IN (ROW(1,ROW(2,3)),(SELECT 1,1),ROW(1,ROW(2,4)));
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189 |
ERROR 21000: Operand should contain 2 column(s)
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190 |
SELECT ROW(1,ROW(2,3)) IN ((SELECT 1,1),ROW(1,ROW(2,3)));
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191 |
ERROR 21000: Operand should contain 2 column(s)
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192 |
SELECT ROW(2,1) IN (ROW(21,2),ROW(ROW(1,1,3),0));
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193 |
ERROR 21000: Operand should contain 1 column(s)
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194 |
SELECT ROW(2,1) IN (ROW(ROW(1,1,3),0),ROW(21,2));
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195 |
ERROR 21000: Operand should contain 1 column(s)
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196 |
CREATE TABLE t1(a int, b int, c int);
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197 |
INSERT INTO t1 VALUES (1, 2, 3),
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198 |
(NULL, 2, 3 ), (1, NULL, 3 ), (1, 2, NULL),
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199 |
(NULL, 2, 3+1), (1, NULL, 3+1), (1, 2+1, NULL),
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200 |
(NULL, 2, 3-1), (1, NULL, 3-1), (1, 2-1, NULL);
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201 |
SELECT (1,2,3) = (1, NULL, 3);
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202 |
(1,2,3) = (1, NULL, 3)
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203 |
NULL
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204 |
SELECT (1,2,3) = (1+1, NULL, 3);
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205 |
(1,2,3) = (1+1, NULL, 3)
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206 |
0
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207 |
SELECT (1,2,3) = (1, NULL, 3+1);
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208 |
(1,2,3) = (1, NULL, 3+1)
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209 |
0
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210 |
SELECT * FROM t1 WHERE (a,b,c) = (1,2,3);
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211 |
a b c
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212 |
1 2 3
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213 |
SELECT (1,2,3) <> (1, NULL, 3);
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214 |
(1,2,3) <> (1, NULL, 3)
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215 |
NULL
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216 |
SELECT (1,2,3) <> (1+1, NULL, 3);
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217 |
(1,2,3) <> (1+1, NULL, 3)
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218 |
1
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219 |
SELECT (1,2,3) <> (1, NULL, 3+1);
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220 |
(1,2,3) <> (1, NULL, 3+1)
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221 |
1
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222 |
SELECT * FROM t1 WHERE (a,b,c) <> (1,2,3);
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223 |
a b c
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224 |
NULL 2 4
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225 |
1 NULL 4
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226 |
1 3 NULL
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227 |
NULL 2 2
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228 |
1 NULL 2
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229 |
1 1 NULL
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230 |
SELECT (1,2,3) < (NULL, 2, 3);
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231 |
(1,2,3) < (NULL, 2, 3)
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232 |
NULL
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233 |
SELECT (1,2,3) < (1, NULL, 3);
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234 |
(1,2,3) < (1, NULL, 3)
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235 |
NULL
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236 |
SELECT (1,2,3) < (1-1, NULL, 3);
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237 |
(1,2,3) < (1-1, NULL, 3)
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238 |
0
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239 |
SELECT (1,2,3) < (1+1, NULL, 3);
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240 |
(1,2,3) < (1+1, NULL, 3)
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241 |
1
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242 |
SELECT * FROM t1 WHERE (a,b,c) < (1,2,3);
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243 |
a b c
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244 |
1 1 NULL
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245 |
SELECT (1,2,3) <= (NULL, 2, 3);
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246 |
(1,2,3) <= (NULL, 2, 3)
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247 |
NULL
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248 |
SELECT (1,2,3) <= (1, NULL, 3);
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249 |
(1,2,3) <= (1, NULL, 3)
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250 |
NULL
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251 |
SELECT (1,2,3) <= (1-1, NULL, 3);
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252 |
(1,2,3) <= (1-1, NULL, 3)
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253 |
0
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254 |
SELECT (1,2,3) <= (1+1, NULL, 3);
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255 |
(1,2,3) <= (1+1, NULL, 3)
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256 |
1
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257 |
SELECT * FROM t1 WHERE (a,b,c) <= (1,2,3);
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258 |
a b c
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259 |
1 2 3
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260 |
1 1 NULL
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261 |
SELECT (1,2,3) > (NULL, 2, 3);
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262 |
(1,2,3) > (NULL, 2, 3)
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263 |
NULL
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264 |
SELECT (1,2,3) > (1, NULL, 3);
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265 |
(1,2,3) > (1, NULL, 3)
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266 |
NULL
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267 |
SELECT (1,2,3) > (1-1, NULL, 3);
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268 |
(1,2,3) > (1-1, NULL, 3)
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269 |
1
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270 |
SELECT (1,2,3) > (1+1, NULL, 3);
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271 |
(1,2,3) > (1+1, NULL, 3)
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272 |
0
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273 |
SELECT * FROM t1 WHERE (a,b,c) > (1,2,3);
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274 |
a b c
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275 |
1 3 NULL
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276 |
SELECT (1,2,3) >= (NULL, 2, 3);
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277 |
(1,2,3) >= (NULL, 2, 3)
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278 |
NULL
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279 |
SELECT (1,2,3) >= (1, NULL, 3);
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280 |
(1,2,3) >= (1, NULL, 3)
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281 |
NULL
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282 |
SELECT (1,2,3) >= (1-1, NULL, 3);
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283 |
(1,2,3) >= (1-1, NULL, 3)
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284 |
1
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285 |
SELECT (1,2,3) >= (1+1, NULL, 3);
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286 |
(1,2,3) >= (1+1, NULL, 3)
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287 |
0
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288 |
SELECT * FROM t1 WHERE (a,b,c) >= (1,2,3);
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289 |
a b c
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290 |
1 2 3
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291 |
1 3 NULL
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292 |
DROP TABLE t1;
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293 |
SELECT ROW(1,1,1) = ROW(1,1,1) as `1`, ROW(1,1,1) = ROW(1,2,1) as `0`, ROW(1,NULL,1) = ROW(2,2,1) as `0`, ROW(1,NULL,1) = ROW(1,2,2) as `0`, ROW(1,NULL,1) = ROW(1,2,1) as `null` ;
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294 |
1 0 0 0 null
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295 |
1 0 0 0 NULL
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296 |
select row(NULL,1)=(2,0);
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297 |
row(NULL,1)=(2,0)
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298 |
0
|
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299 |
CREATE TABLE t1 (a int, b int, PRIMARY KEY (a,b));
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300 |
INSERT INTO t1 VALUES (1,1), (2,1), (3,1), (1,2), (3,2), (3,3);
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301 |
EXPLAIN SELECT * FROM t1 WHERE a=3 AND b=2;
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302 |
id select_type table type possible_keys key key_len ref rows Extra
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303 |
1 SIMPLE t1 const PRIMARY PRIMARY 8 const,const 1 Using index
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304 |
EXPLAIN SELECT * FROM t1 WHERE (a,b)=(3,2);
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305 |
id select_type table type possible_keys key key_len ref rows Extra
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306 |
1 SIMPLE t1 const PRIMARY PRIMARY 8 const,const 1 Using index
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307 |
SELECT * FROM t1 WHERE a=3 and b=2;
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|
308 |
a b
|
|
309 |
3 2
|
|
310 |
SELECT * FROM t1 WHERE (a,b)=(3,2);
|
|
311 |
a b
|
|
312 |
3 2
|
|
313 |
CREATE TABLE t2 (a int, b int, c int, PRIMARY KEY (a,b,c));
|
|
314 |
INSERT INTO t2 VALUES
|
|
315 |
(1,1,2), (3,1,3), (1,2,2), (4,4,2),
|
|
316 |
(1,1,1), (3,1,1), (1,2,1);
|
|
317 |
EXPLAIN SELECT * FROM t1,t2 WHERE t1.a=t2.a AND t1.b=t2.b;
|
|
318 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
319 |
1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 6 Using index
|
|
320 |
1 SIMPLE t2 ref PRIMARY PRIMARY 8 test.t1.a,test.t1.b 1 Using index
|
|
321 |
EXPLAIN SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,t2.b);
|
|
322 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
323 |
1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 6 Using index
|
|
324 |
1 SIMPLE t2 ref PRIMARY PRIMARY 8 test.t1.a,test.t1.b 1 Using index
|
|
325 |
SELECT * FROM t1,t2 WHERE t1.a=t2.a and t1.b=t2.b;
|
|
326 |
a b a b c
|
|
327 |
1 1 1 1 1
|
|
328 |
1 1 1 1 2
|
|
329 |
1 2 1 2 1
|
|
330 |
1 2 1 2 2
|
|
331 |
3 1 3 1 1
|
|
332 |
3 1 3 1 3
|
|
333 |
SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,t2.b);
|
|
334 |
a b a b c
|
|
335 |
1 1 1 1 1
|
|
336 |
1 1 1 1 2
|
|
337 |
1 2 1 2 1
|
|
338 |
1 2 1 2 2
|
|
339 |
3 1 3 1 1
|
|
340 |
3 1 3 1 3
|
|
341 |
EXPLAIN SELECT * FROM t1,t2 WHERE t1.a=t2.a AND t1.b=2;
|
|
342 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
343 |
1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 6 Using where; Using index
|
|
344 |
1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a 1 Using index
|
|
345 |
EXPLAIN SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,2);
|
|
346 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
347 |
1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 6 Using where; Using index
|
|
348 |
1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a 1 Using index
|
|
349 |
SELECT * FROM t1,t2 WHERE t1.a=1 and t1.b=t2.b;
|
|
350 |
a b a b c
|
|
|
520.1.10
by Brian Aker
Adding back more tests. |
351 |
1 1 1 1 1
|
|
1
by brian
clean slate |
352 |
1 1 1 1 2
|
|
520.1.10
by Brian Aker
Adding back more tests. |
353 |
1 2 1 2 1
|
354 |
1 2 1 2 2
|
|
355 |
1 1 3 1 1
|
|
|
1
by brian
clean slate |
356 |
1 1 3 1 3
|
357 |
SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,2);
|
|
358 |
a b a b c
|
|
359 |
1 2 1 1 1
|
|
360 |
1 2 1 1 2
|
|
361 |
1 2 1 2 1
|
|
362 |
1 2 1 2 2
|
|
363 |
3 2 3 1 1
|
|
364 |
3 2 3 1 3
|
|
365 |
EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,t2.b+1);
|
|
366 |
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
367 |
1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 6 100.00 Using index
|
|
368 |
1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a 1 100.00 Using where; Using index
|
|
369 |
Warnings:
|
|
370 |
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t1`.`b` = (`test`.`t2`.`b` + 1)))
|
|
371 |
SELECT * FROM t1,t2 WHERE (t1.a,t1.b)=(t2.a,t2.b+1);
|
|
372 |
a b a b c
|
|
373 |
1 2 1 1 1
|
|
374 |
1 2 1 1 2
|
|
375 |
3 2 3 1 1
|
|
376 |
3 2 3 1 3
|
|
377 |
EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE (t1.a-1,t1.b)=(t2.a-1,t2.b+1);
|
|
378 |
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
379 |
1 SIMPLE t1 index NULL PRIMARY 8 NULL 6 100.00 Using index
|
|
380 |
1 SIMPLE t2 index NULL PRIMARY 12 NULL 7 100.00 Using where; Using index; Using join buffer
|
|
381 |
Warnings:
|
|
382 |
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where (((`test`.`t1`.`a` - 1) = (`test`.`t2`.`a` - 1)) and (`test`.`t1`.`b` = (`test`.`t2`.`b` + 1)))
|
|
383 |
SELECT * FROM t1,t2 WHERE (t1.a-1,t1.b)=(t2.a-1,t2.b+1);
|
|
384 |
a b a b c
|
|
|
520.1.10
by Brian Aker
Adding back more tests. |
385 |
1 2 1 1 1
|
|
1
by brian
clean slate |
386 |
1 2 1 1 2
|
|
520.1.10
by Brian Aker
Adding back more tests. |
387 |
3 2 3 1 1
|
|
1
by brian
clean slate |
388 |
3 2 3 1 3
|
389 |
EXPLAIN SELECT * FROM t2 WHERE a=3 AND b=2;
|
|
390 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
391 |
1 SIMPLE t2 ref PRIMARY PRIMARY 8 const,const 1 Using index
|
|
392 |
EXPLAIN SELECT * FROM t2 WHERE (a,b)=(3,2);
|
|
393 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
394 |
1 SIMPLE t2 ref PRIMARY PRIMARY 8 const,const 1 Using index
|
|
395 |
SELECT * FROM t2 WHERE a=3 and b=2;
|
|
396 |
a b c
|
|
397 |
SELECT * FROM t2 WHERE (a,b)=(3,2);
|
|
398 |
a b c
|
|
399 |
EXPLAIN SELECT * FROM t1,t2 WHERE t2.a=t1.a AND t2.b=2 AND t2.c=1;
|
|
400 |
id select_type table type possible_keys key key_len ref rows Extra
|
|
401 |
1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 6 Using index
|
|
402 |
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 12 test.t1.a,const,const 1 Using index
|
|
403 |
EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE (t2.a,(t2.b,t2.c))=(t1.a,(2,1));
|
|
404 |
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
405 |
1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 6 100.00 Using index
|
|
406 |
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 12 test.t1.a,const,const 1 100.00 Using index
|
|
407 |
Warnings:
|
|
408 |
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`c` = 1) and (`test`.`t2`.`b` = 2) and (`test`.`t2`.`a` = `test`.`t1`.`a`))
|
|
409 |
SELECT * FROM t1,t2 WHERE (t2.a,(t2.b,t2.c))=(t1.a,(2,1));
|
|
410 |
a b a b c
|
|
411 |
1 1 1 2 1
|
|
412 |
1 2 1 2 1
|
|
413 |
EXPLAIN EXTENDED SELECT * FROM t1,t2 WHERE t2.a=t1.a AND (t2.b,t2.c)=(2,1);
|
|
414 |
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
415 |
1 SIMPLE t1 index PRIMARY PRIMARY 8 NULL 6 100.00 Using index
|
|
416 |
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 12 test.t1.a,const,const 1 100.00 Using index
|
|
417 |
Warnings:
|
|
418 |
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`c` = 1) and (`test`.`t2`.`b` = 2) and (`test`.`t2`.`a` = `test`.`t1`.`a`))
|
|
419 |
SELECT * FROM t1,t2 WHERE t2.a=t1.a AND (t2.b,t2.c)=(2,1);
|
|
420 |
a b a b c
|
|
421 |
1 1 1 2 1
|
|
422 |
1 2 1 2 1
|
|
423 |
DROP TABLE t1,t2;
|
|
424 |
CREATE TABLE t1(
|
|
425 |
a int, b int, c int, d int, e int, f int, g int, h int,
|
|
426 |
PRIMARY KEY (a,b,c,d,e,f,g)
|
|
427 |
);
|
|
428 |
INSERT INTO t1 VALUES (1,2,3,4,5,6,7,99);
|
|
429 |
SELECT h FROM t1 WHERE (a,b,c,d,e,f,g)=(1,2,3,4,5,6,7);
|
|
430 |
h
|
|
431 |
99
|
|
432 |
SET @x:= (SELECT h FROM t1 WHERE (a,b,c,d,e,f,g)=(1,2,3,4,5,6,7));
|
|
433 |
SELECT @x;
|
|
434 |
@x
|
|
435 |
99
|
|
436 |
DROP TABLE t1;
|
|
437 |
CREATE TABLE t1 (a INT, b INT);
|
|
438 |
INSERT INTO t1 VALUES (1,1);
|
|
439 |
SELECT ROW(a, 1) IN (SELECT SUM(b), 1) FROM t1 GROUP BY a;
|
|
440 |
ROW(a, 1) IN (SELECT SUM(b), 1)
|
|
441 |
1
|
|
442 |
SELECT ROW(a, 1) IN (SELECT SUM(b), 3) FROM t1 GROUP BY a;
|
|
443 |
ROW(a, 1) IN (SELECT SUM(b), 3)
|
|
444 |
0
|
|
445 |
DROP TABLE t1;
|