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1 |
| -QUERY: drop table ͪߩѦ���; |
| 1 | +drop table ͪߩѦ���; |
2 | 2 | ERROR: Relation 'ͪߩѦ���' does not exist
|
3 |
| -QUERY: create table ͪߩѦ��� (��� text, ���ڵ� varchar, ���1A�� char(16)); |
4 |
| -QUERY: create index ͪߩѦ���index1 on ͪߩѦ��� using btree (���); |
5 |
| -QUERY: create index ͪߩѦ���index2 on ͪߩѦ��� using hash (���ڵ�); |
6 |
| -QUERY: insert into ͪߩѦ��� values('��ǻ�͵��÷���', 'ѦA01߾'); |
7 |
| -QUERY: insert into ͪߩѦ��� values('��ǻ�ͱ��Ƚ�', '��B10��'); |
8 |
| -QUERY: insert into ͪߩѦ��� values('��ǻ�����α���', '��Z01��'); |
9 |
| -QUERY: vacuum ͪߩѦ���; |
10 |
| -QUERY: select * from ͪߩѦ���; |
11 |
| -��� |���ڵ�|���1a�� |
12 |
| -----------------+--------+---------- |
13 |
| -��ǻ�͵��÷���|ѦA01߾ | |
14 |
| -��ǻ�ͱ��Ƚ� |��B10�� | |
15 |
| -��ǻ�����α���|��Z01�� | |
| 3 | +create table ͪߩѦ��� (��� text, ���ڵ� varchar, ���1A�� char(16)); |
| 4 | +create index ͪߩѦ���index1 on ͪߩѦ��� using btree (���); |
| 5 | +create index ͪߩѦ���index2 on ͪߩѦ��� using hash (���ڵ�); |
| 6 | +insert into ͪߩѦ��� values('��ǻ�͵��÷���', 'ѦA01߾'); |
| 7 | +insert into ͪߩѦ��� values('��ǻ�ͱ��Ƚ�', '��B10��'); |
| 8 | +insert into ͪߩѦ��� values('��ǻ�����α���', '��Z01��'); |
| 9 | +vacuum ͪߩѦ���; |
| 10 | +select * from ͪߩѦ���; |
| 11 | + ��� | ���ڵ� | ���1a�� |
| 12 | +------------------+----------+------------ |
| 13 | + ��ǻ�͵��÷��� | ѦA01߾ | |
| 14 | + ��ǻ�ͱ��Ƚ� | ��B10�� | |
| 15 | + ��ǻ�����α��� | ��Z01�� | |
16 | 16 | (3 rows)
|
17 | 17 |
|
18 |
| -QUERY: select * from ͪߩѦ��� where ���ڵ� = '��Z01��'; |
19 |
| -��� |���ڵ�|���1a�� |
20 |
| -----------------+--------+---------- |
21 |
| -��ǻ�����α���|��Z01�� | |
| 18 | +select * from ͪߩѦ��� where ���ڵ� = '��Z01��'; |
| 19 | + ��� | ���ڵ� | ���1a�� |
| 20 | +------------------+----------+------------ |
| 21 | + ��ǻ�����α��� | ��Z01�� | |
22 | 22 | (1 row)
|
23 | 23 |
|
24 |
| -QUERY: select * from ͪߩѦ��� where ���ڵ� ~* '��z01��'; |
25 |
| -��� |���ڵ�|���1a�� |
26 |
| -----------------+--------+---------- |
27 |
| -��ǻ�����α���|��Z01�� | |
| 24 | +select * from ͪߩѦ��� where ���ڵ� ~* '��z01��'; |
| 25 | + ��� | ���ڵ� | ���1a�� |
| 26 | +------------------+----------+------------ |
| 27 | + ��ǻ�����α��� | ��Z01�� | |
28 | 28 | (1 row)
|
29 | 29 |
|
30 |
| -QUERY: select * from ͪߩѦ��� where ���ڵ� like '_Z01_'; |
31 |
| -��� |���ڵ�|���1a�� |
32 |
| -----------------+--------+---------- |
33 |
| -��ǻ�����α���|��Z01�� | |
| 30 | +select * from ͪߩѦ��� where ���ڵ� like '_Z01_'; |
| 31 | + ��� | ���ڵ� | ���1a�� |
| 32 | +------------------+----------+------------ |
| 33 | + ��ǻ�����α��� | ��Z01�� | |
34 | 34 | (1 row)
|
35 | 35 |
|
36 |
| -QUERY: select * from ͪߩѦ��� where ���ڵ� like '_Z%'; |
37 |
| -��� |���ڵ�|���1a�� |
38 |
| -----------------+--------+---------- |
39 |
| -��ǻ�����α���|��Z01�� | |
| 36 | +select * from ͪߩѦ��� where ���ڵ� like '_Z%'; |
| 37 | + ��� | ���ڵ� | ���1a�� |
| 38 | +------------------+----------+------------ |
| 39 | + ��ǻ�����α��� | ��Z01�� | |
40 | 40 | (1 row)
|
41 | 41 |
|
42 |
| -QUERY: select * from ͪߩѦ��� where ��� ~ '��ǻ��[���]'; |
43 |
| -��� |���ڵ�|���1a�� |
44 |
| -----------------+--------+---------- |
45 |
| -��ǻ�͵��÷���|ѦA01߾ | |
46 |
| -��ǻ�ͱ��Ƚ� |��B10�� | |
| 42 | +select * from ͪߩѦ��� where ��� ~ '��ǻ��[���]'; |
| 43 | + ��� | ���ڵ� | ���1a�� |
| 44 | +------------------+----------+------------ |
| 45 | + ��ǻ�͵��÷��� | ѦA01߾ | |
| 46 | + ��ǻ�ͱ��Ƚ� | ��B10�� | |
47 | 47 | (2 rows)
|
48 | 48 |
|
49 |
| -QUERY: select * from ͪߩѦ��� where ��� ~* '��ǻ��[���]'; |
50 |
| -��� |���ڵ�|���1a�� |
51 |
| -----------------+--------+---------- |
52 |
| -��ǻ�͵��÷���|ѦA01߾ | |
53 |
| -��ǻ�ͱ��Ƚ� |��B10�� | |
| 49 | +select * from ͪߩѦ��� where ��� ~* '��ǻ��[���]'; |
| 50 | + ��� | ���ڵ� | ���1a�� |
| 51 | +------------------+----------+------------ |
| 52 | + ��ǻ�͵��÷��� | ѦA01߾ | |
| 53 | + ��ǻ�ͱ��Ƚ� | ��B10�� | |
54 | 54 | (2 rows)
|
55 | 55 |
|
56 |
| -QUERY: select *,character_length(���) from ͪߩѦ���; |
57 |
| -��� |���ڵ�|���1a��|length |
58 |
| -----------------+--------+----------+------ |
59 |
| -��ǻ�͵��÷���|ѦA01߾ | | 8 |
60 |
| -��ǻ�ͱ��Ƚ� |��B10�� | | 7 |
61 |
| -��ǻ�����α���|��Z01�� | | 8 |
| 56 | +select *,character_length(���) from ͪߩѦ���; |
| 57 | + ��� | ���ڵ� | ���1a�� | length |
| 58 | +------------------+----------+------------+-------- |
| 59 | + ��ǻ�͵��÷��� | ѦA01߾ | | 8 |
| 60 | + ��ǻ�ͱ��Ƚ� | ��B10�� | | 7 |
| 61 | + ��ǻ�����α��� | ��Z01�� | | 8 |
62 | 62 | (3 rows)
|
63 | 63 |
|
64 |
| -QUERY: select *,octet_length(���) from ͪߩѦ���; |
65 |
| -��� |���ڵ�|���1a��|octet_length |
66 |
| -----------------+--------+----------+------------ |
67 |
| -��ǻ�͵��÷���|ѦA01߾ | | 16 |
68 |
| -��ǻ�ͱ��Ƚ� |��B10�� | | 14 |
69 |
| -��ǻ�����α���|��Z01�� | | 16 |
| 64 | +select *,octet_length(���) from ͪߩѦ���; |
| 65 | + ��� | ���ڵ� | ���1a�� | octet_length |
| 66 | +------------------+----------+------------+-------------- |
| 67 | + ��ǻ�͵��÷��� | ѦA01߾ | | 16 |
| 68 | + ��ǻ�ͱ��Ƚ� | ��B10�� | | 14 |
| 69 | + ��ǻ�����α��� | ��Z01�� | | 16 |
70 | 70 | (3 rows)
|
71 | 71 |
|
72 |
| -QUERY: select *,position('��' in ���) from ͪߩѦ���; |
73 |
| -��� |���ڵ�|���1a��|strpos |
74 |
| -----------------+--------+----------+------ |
75 |
| -��ǻ�͵��÷���|ѦA01߾ | | 4 |
76 |
| -��ǻ�ͱ��Ƚ� |��B10�� | | 0 |
77 |
| -��ǻ�����α���|��Z01�� | | 0 |
| 72 | +select *,position('��' in ���) from ͪߩѦ���; |
| 73 | + ��� | ���ڵ� | ���1a�� | strpos |
| 74 | +------------------+----------+------------+-------- |
| 75 | + ��ǻ�͵��÷��� | ѦA01߾ | | 4 |
| 76 | + ��ǻ�ͱ��Ƚ� | ��B10�� | | 0 |
| 77 | + ��ǻ�����α��� | ��Z01�� | | 0 |
78 | 78 | (3 rows)
|
79 | 79 |
|
80 |
| -QUERY: select *,substring(��� from 3 for 4) from ͪߩѦ���; |
81 |
| -��� |���ڵ�|���1a��|substr |
82 |
| -----------------+--------+----------+-------- |
83 |
| -��ǻ�͵��÷���|ѦA01߾ | |�͵��� |
84 |
| -��ǻ�ͱ��Ƚ� |��B10�� | |�ͱ��� |
85 |
| -��ǻ�����α���|��Z01�� | |�����α� |
| 80 | +select *,substring(��� from 3 for 4) from ͪߩѦ���; |
| 81 | + ��� | ���ڵ� | ���1a�� | substr |
| 82 | +------------------+----------+------------+---------- |
| 83 | + ��ǻ�͵��÷��� | ѦA01߾ | | �͵��� |
| 84 | + ��ǻ�ͱ��Ƚ� | ��B10�� | | �ͱ��� |
| 85 | + ��ǻ�����α��� | ��Z01�� | | �����α� |
86 | 86 | (3 rows)
|
87 | 87 |
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