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BitKeeper/etc/logging_ok: auto-union BUILD/SETUP.sh: Auto merged Build-tools/Do-compile: Auto merged Build-tools/Do-rpm: Auto merged configure.in: Auto merged include/mysql_com.h: Auto merged innobase/btr/btr0btr.c: Auto merged innobase/btr/btr0cur.c: Auto merged innobase/btr/btr0sea.c: Auto merged innobase/dict/dict0dict.c: Auto merged innobase/dict/dict0load.c: Auto merged innobase/fil/fil0fil.c: Auto merged innobase/fsp/fsp0fsp.c: Auto merged innobase/include/srv0srv.h: Auto merged innobase/include/sync0rw.ic: Auto merged innobase/log/log0log.c: Auto merged innobase/rem/rem0cmp.c: Auto merged innobase/row/row0ins.c: Auto merged innobase/row/row0sel.c: Auto merged innobase/row/row0upd.c: Auto merged innobase/srv/srv0srv.c: Auto merged innobase/srv/srv0start.c: Auto merged myisam/myisampack.c: Auto merged mysql-test/t/range.test: Auto merged scripts/mysqldumpslow.sh: Auto merged sql/ha_innodb.h: Auto merged sql/handler.cc: Auto merged sql/handler.h: Auto merged sql/item.cc: Auto merged sql/item.h: Auto merged sql/item_func.cc: Auto merged sql/item_func.h: Auto merged sql/lock.cc: Auto merged sql/share/Makefile.am: Auto merged sql/sql_rename.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_show.cc: Auto merged support-files/mysql.spec.sh: Auto merged Docs/manual.texi: merge client/mysql.cc: merge client/mysqldump.c: merge innobase/buf/buf0buf.c: merge innobase/os/os0file.c: merge innobase/row/row0mysql.c: merge mysql-test/r/range.result: merge sql/ha_innodb.cc: merge sql/log_event.h: merge sql/mysqld.cc: merge sql/sql_base.cc: merge sql/sql_load.cc: merge
151 lines
6.8 KiB
Text
151 lines
6.8 KiB
Text
drop table if exists t1;
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CREATE TABLE t1 (
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event_date date DEFAULT '0000-00-00' NOT NULL,
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type int(11) DEFAULT '0' NOT NULL,
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event_id int(11) DEFAULT '0' NOT NULL,
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PRIMARY KEY (event_date,type,event_id)
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);
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INSERT INTO t1 VALUES ('1999-07-10',100100,24),('1999-07-11',100100,25),('1999-07-13',100600,0),('1999-07-13',100600,4),('1999-07-13',100600,26),('1999-07-14',100600,10),('1999-07-15',100600,16),('1999-07-15',100800,45),('1999-07-15',101000,47),('1999-07-16',100800,46),('1999-07-20',100600,5),('1999-07-20',100600,27),('1999-07-21',100600,11),('1999-07-22',100600,17),('1999-07-23',100100,39),('1999-07-24',100100,39),('1999-07-24',100500,40),('1999-07-25',100100,39),('1999-07-27',100600,1),('1999-07-27',100600,6),('1999-07-27',100600,28),('1999-07-28',100600,12),('1999-07-29',100500,41),('1999-07-29',100600,18),('1999-07-30',100500,41),('1999-07-31',100500,41),('1999-08-01',100700,34),('1999-08-03',100600,7),('1999-08-03',100600,29),('1999-08-04',100600,13),('1999-08-05',100500,42),('1999-08-05',100600,19),('1999-08-06',100500,42),('1999-08-07',100500,42),('1999-08-08',100500,42),('1999-08-10',100600,2),('1999-08-10',100600,9),('1999-08-10',100600,30),('1999-08-11',100600,14),('1999-08-12',100600,20),('1999-08-17',100500,8),('1999-08-17',100600,31),('1999-08-18',100600,15),('1999-08-19',100600,22),('1999-08-24',100600,3),('1999-08-24',100600,32),('1999-08-27',100500,43),('1999-08-31',100600,33),('1999-09-17',100100,37),('1999-09-18',100100,37),('1999-09-19',100100,37),('2000-12-18',100700,38);
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select event_date,type,event_id from t1 WHERE event_date >= "1999-07-01" AND event_date < "1999-07-15" AND (type=100600 OR type=100100) ORDER BY event_date;
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event_date type event_id
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1999-07-10 100100 24
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1999-07-11 100100 25
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1999-07-13 100600 0
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1999-07-13 100600 4
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1999-07-13 100600 26
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1999-07-14 100600 10
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explain select event_date,type,event_id from t1 WHERE type = 100601 and event_date >= "1999-07-01" AND event_date < "1999-07-15" AND (type=100600 OR type=100100) ORDER BY event_date;
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Comment
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Impossible WHERE
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select event_date,type,event_id from t1 WHERE event_date >= "1999-07-01" AND event_date <= "1999-07-15" AND (type=100600 OR type=100100) or event_date >= "1999-07-01" AND event_date <= "1999-07-15" AND type=100099;
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event_date type event_id
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1999-07-10 100100 24
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1999-07-11 100100 25
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1999-07-13 100600 0
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1999-07-13 100600 4
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1999-07-13 100600 26
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1999-07-14 100600 10
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1999-07-15 100600 16
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drop table t1;
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CREATE TABLE t1 (
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PAPER_ID smallint(6) DEFAULT '0' NOT NULL,
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YEAR smallint(6) DEFAULT '0' NOT NULL,
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ISSUE smallint(6) DEFAULT '0' NOT NULL,
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CLOSED tinyint(4) DEFAULT '0' NOT NULL,
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ISS_DATE date DEFAULT '0000-00-00' NOT NULL,
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PRIMARY KEY (PAPER_ID,YEAR,ISSUE)
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);
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INSERT INTO t1 VALUES (3,1999,34,0,'1999-07-12');
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INSERT INTO t1 VALUES (1,1999,111,0,'1999-03-23');
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INSERT INTO t1 VALUES (1,1999,222,0,'1999-03-23');
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INSERT INTO t1 VALUES (3,1999,33,0,'1999-07-12');
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INSERT INTO t1 VALUES (3,1999,32,0,'1999-07-12');
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INSERT INTO t1 VALUES (3,1999,31,0,'1999-07-12');
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INSERT INTO t1 VALUES (3,1999,30,0,'1999-07-12');
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INSERT INTO t1 VALUES (3,1999,29,0,'1999-07-12');
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INSERT INTO t1 VALUES (3,1999,28,0,'1999-07-12');
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INSERT INTO t1 VALUES (1,1999,40,1,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,41,1,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,42,1,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,46,1,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,47,1,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,48,1,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,49,1,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,50,0,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,51,0,'1999-05-01');
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INSERT INTO t1 VALUES (1,1999,200,0,'1999-06-28');
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INSERT INTO t1 VALUES (1,1999,52,0,'1999-06-28');
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INSERT INTO t1 VALUES (1,1999,53,0,'1999-06-28');
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INSERT INTO t1 VALUES (1,1999,54,0,'1999-06-28');
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INSERT INTO t1 VALUES (1,1999,55,0,'1999-06-28');
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INSERT INTO t1 VALUES (1,1999,56,0,'1999-07-01');
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INSERT INTO t1 VALUES (1,1999,57,0,'1999-07-01');
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INSERT INTO t1 VALUES (1,1999,58,0,'1999-07-01');
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INSERT INTO t1 VALUES (1,1999,59,0,'1999-07-01');
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INSERT INTO t1 VALUES (1,1999,60,0,'1999-07-01');
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INSERT INTO t1 VALUES (3,1999,35,0,'1999-07-12');
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select YEAR,ISSUE from t1 where PAPER_ID=3 and (YEAR>1999 or (YEAR=1999 and ISSUE>28)) order by YEAR,ISSUE;
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YEAR ISSUE
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1999 29
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1999 30
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1999 31
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1999 32
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1999 33
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1999 34
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1999 35
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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repair table t1;
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Table Op Msg_type Msg_text
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test.t1 repair status OK
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drop table t1;
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CREATE TABLE t1 (
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id int(11) NOT NULL auto_increment,
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parent_id int(11) DEFAULT '0' NOT NULL,
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level tinyint(4) DEFAULT '0' NOT NULL,
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PRIMARY KEY (id),
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KEY parent_id (parent_id),
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KEY level (level)
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);
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INSERT INTO t1 VALUES (1,0,0),(3,1,1),(4,1,1),(8,2,2),(9,2,2),(17,3,2),(22,4,2),(24,4,2),(28,5,2),(29,5,2),(30,5,2),(31,6,2),(32,6,2),(33,6,2),(203,7,2),(202,7,2),(20,3,2),(157,0,0),(193,5,2),(40,7,2),(2,1,1),(15,2,2),(6,1,1),(34,6,2),(35,6,2),(16,3,2),(7,1,1),(36,7,2),(18,3,2),(26,5,2),(27,5,2),(183,4,2),(38,7,2),(25,5,2),(37,7,2),(21,4,2),(19,3,2),(5,1,1),(179,5,2);
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SELECT * FROM t1 WHERE level = 1 AND parent_id = 1;
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id parent_id level
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3 1 1
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4 1 1
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2 1 1
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6 1 1
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7 1 1
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5 1 1
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SELECT * FROM t1 WHERE level = 1 AND parent_id = 1 order by id;
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id parent_id level
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2 1 1
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3 1 1
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4 1 1
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5 1 1
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6 1 1
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7 1 1
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drop table t1;
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create table t1(
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Satellite varchar(25) not null,
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SensorMode varchar(25) not null,
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FullImageCornersUpperLeftLongitude double not null,
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FullImageCornersUpperRightLongitude double not null,
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FullImageCornersUpperRightLatitude double not null,
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FullImageCornersLowerRightLatitude double not null,
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index two (Satellite, SensorMode, FullImageCornersUpperLeftLongitude, FullImageCornersUpperRightLongitude, FullImageCornersUpperRightLatitude, FullImageCornersLowerRightLatitude));
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insert into t1 values("OV-3","PAN1",91,-92,40,50);
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insert into t1 values("OV-4","PAN1",91,-92,40,50);
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select * from t1 where t1.Satellite = "OV-3" and t1.SensorMode = "PAN1" and t1.FullImageCornersUpperLeftLongitude > -90.000000 and t1.FullImageCornersUpperRightLongitude < -82.000000;
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Satellite SensorMode FullImageCornersUpperLeftLongitude FullImageCornersUpperRightLongitude FullImageCornersUpperRightLatitude FullImageCornersLowerRightLatitude
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OV-3 PAN1 91 -92 40 50
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drop table t1;
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create table t1 ( aString char(100) not null default "", key aString (aString(10)) );
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insert t1 (aString) values ( "believe in myself" ), ( "believe" ), ("baaa" ), ( "believe in love");
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select * from t1 where aString < "believe in myself" order by aString;
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aString
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baaa
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believe
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believe in love
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select * from t1 where aString > "believe in love" order by aString;
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aString
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believe in myself
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alter table t1 drop key aString;
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select * from t1 where aString < "believe in myself" order by aString;
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aString
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baaa
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believe
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believe in love
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select * from t1 where aString > "believe in love" order by aString;
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aString
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believe in myself
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count(*)
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602
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count(*)
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602
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count(*)
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602
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count(*)
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389
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count(*)
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213
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