mirror of https://github.com/postgres/postgres
parent
a7ad43cd18
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QUERY: drop table 燹俑骜砧; |
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ERROR: Relation 燹俑骜砧 Does Not Exist! |
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QUERY: create table 燹俑骜砧 (如淦杀 text, 狞瞥婉螭 varchar, 氢蛇 varchar(16)); |
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QUERY: create index 燹俑骜砧index1 on 燹俑骜砧 using btree (如淦杀); |
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QUERY: create index 燹俑骜砧index2 on 燹俑骜砧 using hash (狞瞥婉螭); |
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QUERY: insert into 燹俑骜砧 values ('缳妾淦', '绠绠绎世', '啤A01念'); |
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QUERY: insert into 燹俑骜砧 values ('犒葸淦', '芈溷却宇狞瞥', '你B10你'); |
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QUERY: insert into 燹俑骜砧 values ('螫悖淦', '印汤洗枪却宇狞瞥', '仨Z01摩'); |
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QUERY: vacuum 燹俑骜砧; |
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QUERY: select * from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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缳妾淦|绠绠绎世 |啤A01念 |
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犒葸淦|芈溷却宇狞瞥 |你B10你 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(3 rows) |
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|
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QUERY: select * from 燹俑骜砧 where 氢蛇 = '仨Z01摩'; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(1 row) |
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|
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QUERY: select * from 燹俑骜砧 where 氢蛇 ~* '仨z01摩'; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(1 row) |
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|
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QUERY: select * from 燹俑骜砧 where 氢蛇 like '_Z01_'; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(1 row) |
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|
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QUERY: select * from 燹俑骜砧 where 氢蛇 like '_Z%'; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(1 row) |
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|
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QUERY: select * from 燹俑骜砧 where 狞瞥婉螭 ~ '绠绠绎[凫卮世]'; |
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如淦杀|狞瞥婉螭|氢蛇 |
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------+--------+------- |
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缳妾淦|绠绠绎世|啤A01念 |
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(1 row) |
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|
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QUERY: select * from 燹俑骜砧 where 狞瞥婉螭 ~* '绠绠绎[凫卮世]'; |
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如淦杀|狞瞥婉螭|氢蛇 |
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------+--------+------- |
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缳妾淦|绠绠绎世|啤A01念 |
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(1 row) |
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|
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QUERY: select *, character_length(如淦杀) from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |length |
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------+----------------+-------+------ |
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缳妾淦|绠绠绎世 |啤A01念| 3 |
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犒葸淦|芈溷却宇狞瞥 |你B10你| 3 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩| 3 |
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(3 rows) |
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|
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QUERY: select *, octet_length(如淦杀) from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |octet_length |
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------+----------------+-------+------------ |
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缳妾淦|绠绠绎世 |啤A01念| 6 |
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犒葸淦|芈溷却宇狞瞥 |你B10你| 6 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩| 6 |
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(3 rows) |
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|
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QUERY: select *, position('却宇' in 狞瞥婉螭) from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |strpos |
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------+----------------+-------+------ |
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缳妾淦|绠绠绎世 |啤A01念| 0 |
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犒葸淦|芈溷却宇狞瞥 |你B10你| 3 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩| 5 |
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(3 rows) |
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QUERY: select *, substring(狞瞥婉螭 from 3 for 6 ) from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |substr |
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------+----------------+-------+------------ |
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缳妾淦|绠绠绎世 |啤A01念|绎世 |
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犒葸淦|芈溷却宇狞瞥 |你B10你|却宇狞瞥 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩|洗枪却宇狞瞥 |
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(3 rows) |
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@ -0,0 +1,20 @@ |
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drop table 燹俑骜砧; |
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create table 燹俑骜砧 (如淦杀 text, 狞瞥婉螭 varchar, 氢蛇 varchar(16)); |
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create index 燹俑骜砧index1 on 燹俑骜砧 using btree (如淦杀); |
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create index 燹俑骜砧index2 on 燹俑骜砧 using hash (狞瞥婉螭); |
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insert into 燹俑骜砧 values ('缳妾淦', '绠绠绎世', '啤A01念'); |
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insert into 燹俑骜砧 values ('犒葸淦', '芈溷却宇狞瞥', '你B10你'); |
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insert into 燹俑骜砧 values ('螫悖淦', '印汤洗枪却宇狞瞥', '仨Z01摩'); |
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vacuum 燹俑骜砧; |
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select * from 燹俑骜砧; |
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select * from 燹俑骜砧 where 氢蛇 = '仨Z01摩'; |
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select * from 燹俑骜砧 where 氢蛇 ~* '仨z01摩'; |
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select * from 燹俑骜砧 where 氢蛇 like '_Z01_'; |
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select * from 燹俑骜砧 where 氢蛇 like '_Z%'; |
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select * from 燹俑骜砧 where 狞瞥婉螭 ~ '绠绠绎[凫卮世]'; |
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select * from 燹俑骜砧 where 狞瞥婉螭 ~* '绠绠绎[凫卮世]'; |
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|
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select *, character_length(如淦杀) from 燹俑骜砧; |
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select *, octet_length(如淦杀) from 燹俑骜砧; |
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select *, position('却宇' in 狞瞥婉螭) from 燹俑骜砧; |
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select *, substring(狞瞥婉螭 from 3 for 6 ) from 燹俑骜砧; |
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@ -0,0 +1,85 @@ |
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QUERY: drop table 燹俑骜砧; |
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ERROR: Relation 燹俑骜砧 Does Not Exist! |
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QUERY: create table 燹俑骜砧 (如淦杀 text, 狞瞥婉螭 varchar, 氢蛇 varchar(16)); |
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QUERY: create index 燹俑骜砧index1 on 燹俑骜砧 using btree (如淦杀); |
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QUERY: create index 燹俑骜砧index2 on 燹俑骜砧 using hash (狞瞥婉螭); |
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QUERY: insert into 燹俑骜砧 values ('缳妾淦', '绠绠绎世', '啤A01念'); |
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QUERY: insert into 燹俑骜砧 values ('犒葸淦', '芈溷却宇狞瞥', '你B10你'); |
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QUERY: insert into 燹俑骜砧 values ('螫悖淦', '印汤洗枪却宇狞瞥', '仨Z01摩'); |
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QUERY: vacuum 燹俑骜砧; |
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QUERY: select * from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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缳妾淦|绠绠绎世 |啤A01念 |
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犒葸淦|芈溷却宇狞瞥 |你B10你 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(3 rows) |
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QUERY: select * from 燹俑骜砧 where 氢蛇 = '仨Z01摩'; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(1 row) |
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|
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QUERY: select * from 燹俑骜砧 where 氢蛇 ~* '仨z01摩'; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(1 row) |
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|
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QUERY: select * from 燹俑骜砧 where 氢蛇 like '_Z01_'; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(1 row) |
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QUERY: select * from 燹俑骜砧 where 氢蛇 like '_Z%'; |
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如淦杀|狞瞥婉螭 |氢蛇 |
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------+----------------+------- |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩 |
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(1 row) |
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|
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QUERY: select * from 燹俑骜砧 where 狞瞥婉螭 ~ '绠绠绎[凫卮世]'; |
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如淦杀|狞瞥婉螭|氢蛇 |
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------+--------+------- |
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缳妾淦|绠绠绎世|啤A01念 |
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(1 row) |
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QUERY: select * from 燹俑骜砧 where 狞瞥婉螭 ~* '绠绠绎[凫卮世]'; |
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如淦杀|狞瞥婉螭|氢蛇 |
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------+--------+------- |
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缳妾淦|绠绠绎世|啤A01念 |
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(1 row) |
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QUERY: select *, character_length(如淦杀) from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |length |
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------+----------------+-------+------ |
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缳妾淦|绠绠绎世 |啤A01念| 3 |
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犒葸淦|芈溷却宇狞瞥 |你B10你| 3 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩| 3 |
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(3 rows) |
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|
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QUERY: select *, octet_length(如淦杀) from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |octet_length |
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------+----------------+-------+------------ |
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缳妾淦|绠绠绎世 |啤A01念| 6 |
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犒葸淦|芈溷却宇狞瞥 |你B10你| 6 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩| 6 |
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(3 rows) |
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QUERY: select *, position('却宇' in 狞瞥婉螭) from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |strpos |
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------+----------------+-------+------ |
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缳妾淦|绠绠绎世 |啤A01念| 0 |
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犒葸淦|芈溷却宇狞瞥 |你B10你| 3 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩| 5 |
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(3 rows) |
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QUERY: select *, substring(狞瞥婉螭 from 3 for 6 ) from 燹俑骜砧; |
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如淦杀|狞瞥婉螭 |氢蛇 |substr |
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------+----------------+-------+------------ |
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缳妾淦|绠绠绎世 |啤A01念|绎世 |
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犒葸淦|芈溷却宇狞瞥 |你B10你|却宇狞瞥 |
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螫悖淦|印汤洗枪却宇狞瞥|仨Z01摩|洗枪却宇狞瞥 |
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(3 rows) |
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@ -0,0 +1,20 @@ |
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drop table 燹俑骜砧; |
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create table 燹俑骜砧 (如淦杀 text, 狞瞥婉螭 varchar, 氢蛇 varchar(16)); |
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create index 燹俑骜砧index1 on 燹俑骜砧 using btree (如淦杀); |
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create index 燹俑骜砧index2 on 燹俑骜砧 using hash (狞瞥婉螭); |
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insert into 燹俑骜砧 values ('缳妾淦', '绠绠绎世', '啤A01念'); |
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insert into 燹俑骜砧 values ('犒葸淦', '芈溷却宇狞瞥', '你B10你'); |
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insert into 燹俑骜砧 values ('螫悖淦', '印汤洗枪却宇狞瞥', '仨Z01摩'); |
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vacuum 燹俑骜砧; |
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select * from 燹俑骜砧; |
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select * from 燹俑骜砧 where 氢蛇 = '仨Z01摩'; |
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select * from 燹俑骜砧 where 氢蛇 ~* '仨z01摩'; |
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select * from 燹俑骜砧 where 氢蛇 like '_Z01_'; |
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select * from 燹俑骜砧 where 氢蛇 like '_Z%'; |
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select * from 燹俑骜砧 where 狞瞥婉螭 ~ '绠绠绎[凫卮世]'; |
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select * from 燹俑骜砧 where 狞瞥婉螭 ~* '绠绠绎[凫卮世]'; |
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|
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select *, character_length(如淦杀) from 燹俑骜砧; |
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select *, octet_length(如淦杀) from 燹俑骜砧; |
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select *, position('却宇' in 狞瞥婉螭) from 燹俑骜砧; |
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select *, substring(狞瞥婉螭 from 3 for 6 ) from 燹俑骜砧; |
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Loading…
Reference in new issue