mirror of
https://github.com/MariaDB/server.git
synced 2025-01-27 09:14:17 +01:00
1f4a9f086a
This was done after discussions with Igor, Sanja and Bar. The main reason for removing the deprication was to ensure that MariaDB is always backward compatible whenever possible. Other things: - Added statistics counters, mainly for the feedback plugin. - INTO OUTFILE - INTO variable - If INTO is using the old syntax (end of query)
640 lines
16 KiB
Text
640 lines
16 KiB
Text
FLUSH STATUS;
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create table t1(abc int primary key, xyz int invisible);
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SHOW STATUS LIKE 'Feature_invisible_columns';
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Variable_name Value
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Feature_invisible_columns 1
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desc t1;
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Field Type Null Key Default Extra
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abc int(11) NO PRI NULL
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xyz int(11) YES NULL INVISIBLE
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`abc` int(11) NOT NULL,
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`xyz` int(11) INVISIBLE DEFAULT NULL,
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PRIMARY KEY (`abc`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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select TABLE_CATALOG,TABLE_SCHEMA,TABLE_NAME,COLUMN_NAME,EXTRA from INFORMATION_SCHEMA.COLUMNS where TABLE_SCHEMA='test' and TABLE_NAME='t1';
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TABLE_CATALOG TABLE_SCHEMA TABLE_NAME COLUMN_NAME EXTRA
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def test t1 abc
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def test t1 xyz INVISIBLE
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drop table t1;
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create table t1(a1 int invisible);
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ERROR 42000: A table must have at least 1 column
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create table t1(a1 blob,invisible(a1));
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '(a1))' at line 1
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create table t1(a1 int primary key invisible ,a2 int unique invisible , a3 blob,a4 int not null invisible unique);
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ERROR HY000: Invisible column `a1` must have a default value
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create table t1(abc int not null invisible);
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ERROR 42000: A table must have at least 1 column
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MDEV-14849 CREATE + ALTER with user-invisible columns produce invalid table definition
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create or replace table t1 (pk int auto_increment primary key invisible, i int);
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alter table t1 modify pk int invisible;
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ERROR HY000: Invisible column `pk` must have a default value
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drop table t1;
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create table t1(a int invisible, b int);
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insert into t1 values(1);
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insert into t1(a) values(2);
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insert into t1(b) values(3);
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insert into t1(a,b) values(5,5);
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select * from t1;
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b
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1
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NULL
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3
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5
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select a,b from t1;
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a b
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NULL 1
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2 NULL
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NULL 3
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5 5
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delete from t1;
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insert into t1 values(1),(2),(3),(4);
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select * from t1;
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b
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1
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2
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3
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4
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select a from t1;
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a
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NULL
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NULL
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NULL
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NULL
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drop table t1;
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#more complex case of invisible
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create table t1(a int , b int invisible , c int invisible auto_increment unique, d blob , e int unique, f int);
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desc t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES NULL INVISIBLE
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c int(11) NO PRI NULL auto_increment, INVISIBLE
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d blob YES NULL
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e int(11) YES UNI NULL
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f int(11) YES NULL
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insert into t1 values(1,'d blob',1,1),(1,'d blob',11,1),(1,'d blob',2,1),(1,'d blob',3,1),(1,'d blob',41,1);
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select * from t1;
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a d e f
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1 d blob 1 1
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1 d blob 11 1
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1 d blob 2 1
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1 d blob 3 1
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1 d blob 41 1
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select a,b,c,d,e,f from t1;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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drop table t1;
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#more complex case of invisible with sql_mode=NO_AUTO_VALUE_ON_ZERO
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set sql_mode='NO_AUTO_VALUE_ON_ZERO';
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create table t1(a int , b int invisible , c int invisible auto_increment unique, d blob , e int unique, f int);
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desc t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES NULL INVISIBLE
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c int(11) NO PRI NULL auto_increment, INVISIBLE
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d blob YES NULL
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e int(11) YES UNI NULL
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f int(11) YES NULL
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insert into t1 values(1,'d blob',1,1),(1,'d blob',11,1),(1,'d blob',2,1),(1,'d blob',3,1),(1,'d blob',41,1);
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select * from t1;
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a d e f
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1 d blob 1 1
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1 d blob 11 1
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1 d blob 2 1
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1 d blob 3 1
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1 d blob 41 1
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select a,b,c,d,e,f from t1;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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drop table t1;
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set sql_mode='';
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create table sdsdsd(a int , b int, invisible(a,b));
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '(a,b))' at line 1
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create table t1(a int,abc int as (a mod 3) virtual invisible);
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desc t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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abc int(11) YES NULL VIRTUAL GENERATED, INVISIBLE
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insert into t1 values(1,default);
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ERROR 21S01: Column count doesn't match value count at row 1
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insert into t1 values(1),(22),(233);
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select * from t1;
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a
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1
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22
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233
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select a,abc from t1;
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a abc
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1 1
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22 1
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233 2
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drop table t1;
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create table t1(abc int primary key invisible auto_increment, a int);
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desc t1;
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Field Type Null Key Default Extra
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abc int(11) NO PRI NULL auto_increment, INVISIBLE
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a int(11) YES NULL
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`abc` int(11) NOT NULL INVISIBLE AUTO_INCREMENT,
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`a` int(11) DEFAULT NULL,
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PRIMARY KEY (`abc`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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insert into t1 values(1);
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insert into t1 values(2);
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insert into t1 values(3);
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select * from t1;
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a
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1
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2
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3
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select abc,a from t1;
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abc a
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1 1
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2 2
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3 3
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delete from t1;
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insert into t1 values(1),(2),(3),(4),(6);
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select abc,a from t1;
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abc a
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4 1
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5 2
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6 3
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7 4
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8 6
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drop table t1;
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create table t1(abc int);
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alter table t1 change abc ss int invisible;
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ERROR 42000: A table must have at least 1 column
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alter table t1 add column xyz int;
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alter table t1 modify column abc int ;
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desc t1;
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Field Type Null Key Default Extra
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abc int(11) YES NULL
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xyz int(11) YES NULL
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insert into t1 values(22);
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ERROR 21S01: Column count doesn't match value count at row 1
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alter table t1 modify column abc int invisible;
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desc t1;
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Field Type Null Key Default Extra
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abc int(11) YES NULL INVISIBLE
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xyz int(11) YES NULL
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insert into t1 values(12);
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drop table t1;
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#some test on copy table structure with table data;
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#table with invisible fields and unique keys;
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create table t1(a int , b int invisible , c int invisible auto_increment unique, d blob , e int unique, f int);
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desc t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES NULL INVISIBLE
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c int(11) NO PRI NULL auto_increment, INVISIBLE
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d blob YES NULL
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e int(11) YES UNI NULL
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f int(11) YES NULL
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insert into t1 values(1,'d blob',1,1),(1,'d blob',11,1),(1,'d blob',2,1),(1,'d blob',3,1),(1,'d blob',41,1);
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select * from t1;
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a d e f
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1 d blob 1 1
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1 d blob 11 1
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1 d blob 2 1
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1 d blob 3 1
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1 d blob 41 1
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select a,b,c,d,e,f from t1;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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#this won't copy invisible fields and keys;
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create table t2 as select * from t1;
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desc t2;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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d blob YES NULL
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e int(11) YES NULL
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f int(11) YES NULL
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select * from t2;
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a d e f
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1 d blob 1 1
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1 d blob 11 1
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1 d blob 2 1
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1 d blob 3 1
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1 d blob 41 1
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select a,b,c,d,e,f from t2;
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ERROR 42S22: Unknown column 'b' in 'field list'
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drop table t2;
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#now this will copy invisible fields
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create table t2 as select a,b,c,d,e,f from t1;
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desc t2;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES NULL
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c int(11) NO 0
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d blob YES NULL
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e int(11) YES NULL
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f int(11) YES NULL
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select * from t2;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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select a,b,c,d,e,f from t2;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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drop table t2,t1;
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#some test related to copy of data from one table to another;
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create table t1(a int , b int invisible , c int invisible auto_increment unique, d blob , e int unique, f int);
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insert into t1 values(1,'d blob',1,1),(1,'d blob',11,1),(1,'d blob',2,1),(1,'d blob',3,1),(1,'d blob',41,1);
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select a,b,c,d,e,f from t1;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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create table t2(a int , b int invisible , c int invisible , d blob , e int unique, f int);
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insert into t2 select * from t1;
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select a,b,c,d,e,f from t2;
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a b c d e f
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1 NULL NULL d blob 1 1
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1 NULL NULL d blob 11 1
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1 NULL NULL d blob 2 1
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1 NULL NULL d blob 3 1
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1 NULL NULL d blob 41 1
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truncate t2;
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insert into t2 (a,b,c,d,e,f) select a,b,c,d,e,f from t1;
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select a,b,c,d,e,f from t2;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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truncate t2;
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drop table t1,t2;
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#some test related to creating view on table with invisible column;
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create table t1(a int , b int invisible , c int invisible auto_increment unique, d blob , e int unique, f int);
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insert into t1 values(1,'d blob',1,1),(1,'d blob',11,1),(1,'d blob',2,1),(1,'d blob',3,1),(1,'d blob',41,1);
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create view v as select * from t1;
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desc v;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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d blob YES NULL
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e int(11) YES NULL
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f int(11) YES NULL
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select * from v;
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a d e f
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1 d blob 1 1
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1 d blob 11 1
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1 d blob 2 1
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1 d blob 3 1
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1 d blob 41 1
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#v does not have invisible column;
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select a,b,c,d,e,f from v;
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ERROR 42S22: Unknown column 'b' in 'field list'
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insert into v values(1,21,32,4);
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select * from v;
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a d e f
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1 d blob 1 1
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1 d blob 11 1
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1 d blob 2 1
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1 d blob 3 1
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1 d blob 41 1
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1 21 32 4
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insert into v(a,b,c,d,e,f) values(1,12,3,4,5,6);
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ERROR 42S22: Unknown column 'b' in 'field list'
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drop view v;
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create view v as select a,b,c,d,e,f from t1;
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desc v;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES NULL
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c int(11) NO 0
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d blob YES NULL
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e int(11) YES NULL
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f int(11) YES NULL
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select * from v;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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1 NULL 6 21 32 4
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#v does have invisible column but they aren't invisible anymore.
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select a,b,c,d,e,f from v;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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1 NULL 6 21 32 4
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insert into v values(1,26,33,4,45,66);
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select a,b,c,d,e,f from v;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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1 NULL 6 21 32 4
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1 26 33 4 45 66
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insert into v(a,b,c,d,e,f) values(1,32,31,41,5,6);
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select a,b,c,d,e,f from v;
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a b c d e f
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1 NULL 1 d blob 1 1
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1 NULL 2 d blob 11 1
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1 NULL 3 d blob 2 1
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1 NULL 4 d blob 3 1
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1 NULL 5 d blob 41 1
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1 NULL 6 21 32 4
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1 26 33 4 45 66
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1 32 31 41 5 6
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drop view v;
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drop table t1;
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#now invisible column in where and some join query
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create table t1 (a int unique , b int invisible unique, c int unique invisible);
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insert into t1(a,b,c) values(1,1,1);
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insert into t1(a,b,c) values(2,2,2);
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insert into t1(a,b,c) values(3,3,3);
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insert into t1(a,b,c) values(4,4,4);
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insert into t1(a,b,c) values(21,21,26);
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insert into t1(a,b,c) values(31,31,35);
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insert into t1(a,b,c) values(41,41,45);
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insert into t1(a,b,c) values(22,22,24);
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insert into t1(a,b,c) values(32,32,33);
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insert into t1(a,b,c) values(42,42,43);
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explain select * from t1 where b=3;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const b b 5 const 1
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select * from t1 where b=3;
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a
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3
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explain select * from t1 where c=3;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const c c 5 const 1
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select * from t1 where c=3;
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a
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3
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create table t2 as select a,b,c from t1;
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desc t2;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES NULL
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c int(11) YES NULL
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explain select * from t1,t2 where t1.b = t2.c and t1.c = t2.b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 ALL NULL NULL NULL NULL 10 Using where
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1 SIMPLE t1 eq_ref b,c b 5 test.t2.c 1 Using where
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select * from t1,t2 where t1.b = t2.c and t1.c = t2.b;
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a a b c
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1 1 1 1
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2 2 2 2
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3 3 3 3
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4 4 4 4
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drop table t1,t2;
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#Unhide invisible columns
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create table t1 (a int primary key, b int invisible, c int invisible unique);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL,
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`b` int(11) INVISIBLE DEFAULT NULL,
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`c` int(11) INVISIBLE DEFAULT NULL,
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PRIMARY KEY (`a`),
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UNIQUE KEY `c` (`c`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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desc t1;
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Field Type Null Key Default Extra
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a int(11) NO PRI NULL
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b int(11) YES NULL INVISIBLE
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c int(11) YES UNI NULL INVISIBLE
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alter table t1 modify column b int;
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desc t1;
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Field Type Null Key Default Extra
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a int(11) NO PRI NULL
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b int(11) YES NULL
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c int(11) YES UNI NULL INVISIBLE
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alter table t1 change column c d int;
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desc t1;
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Field Type Null Key Default Extra
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a int(11) NO PRI NULL
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b int(11) YES NULL
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d int(11) YES UNI NULL
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drop table t1;
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SHOW STATUS LIKE 'Feature_invisible_columns';
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Variable_name Value
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Feature_invisible_columns 52
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#invisible is non reserved
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create table t1(a int unique , invisible int invisible, c int );
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desc t1;
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Field Type Null Key Default Extra
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a int(11) YES UNI NULL
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invisible int(11) YES NULL INVISIBLE
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c int(11) YES NULL
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alter table t1 change column invisible hid int invisible;
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desc t1;
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Field Type Null Key Default Extra
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a int(11) YES UNI NULL
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hid int(11) YES NULL INVISIBLE
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c int(11) YES NULL
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drop table t1;
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CREATE TABLE t1 (b int);
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INSERT t1 values(1);
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INSERT t1 values(2);
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INSERT t1 values(3);
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INSERT t1 values(4);
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INSERT t1 values(5);
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CREATE TABLE t2 (a int invisible) SELECT * FROM t1;
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select * from t2 order by b;
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b
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|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
select a,b from t2 order by b;
|
|
a b
|
|
NULL 1
|
|
NULL 2
|
|
NULL 3
|
|
NULL 4
|
|
NULL 5
|
|
CREATE TABLE t3 (b int, a int invisible) SELECT * FROM t1;
|
|
select * from t3 order by b;
|
|
b
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
select a,b from t3 order by b;
|
|
a b
|
|
NULL 1
|
|
NULL 2
|
|
NULL 3
|
|
NULL 4
|
|
NULL 5
|
|
CREATE TABLE t4 (b int invisible) SELECT * FROM t1;
|
|
ERROR 42000: A table must have at least 1 column
|
|
CREATE TABLE t5 (a int invisible) SELECT b as a FROM t1;
|
|
ERROR 42000: A table must have at least 1 column
|
|
drop table t1,t2,t3;
|
|
create table t1 (a int , b int invisible default 3, c int , d int invisible default 6);
|
|
CREATE PROCEDURE
|
|
insert_t1(a int, b int)
|
|
MODIFIES SQL DATA
|
|
insert into t1 values(a,b);
|
|
//
|
|
call insert_t1(1,1);
|
|
call insert_t1(2,2);
|
|
select * from t1 order by a;
|
|
a c
|
|
1 1
|
|
2 2
|
|
select a,b,c,d from t1 order by a;
|
|
a b c d
|
|
1 3 1 6
|
|
2 3 2 6
|
|
DROP PROCEDURE insert_t1;
|
|
delete from t1;
|
|
prepare insert_1 from "insert into t1 values(@a,@c)";
|
|
prepare insert_2 from "insert into t1(a,b,c) values(@a,@b,@c)";
|
|
set @a=1, @c=1;
|
|
execute insert_1;
|
|
set @a=2,@b=2, @c=2;
|
|
execute insert_2;
|
|
select a,b,c,d from t1 order by a;
|
|
a b c d
|
|
1 3 1 6
|
|
2 2 2 6
|
|
drop table t1;
|
|
create table t1(a int default 5 invisible, b int);
|
|
create table t2(a int default (b+11) invisible, b int);
|
|
insert into t1 values(1);
|
|
select a,b from t1;
|
|
a b
|
|
5 1
|
|
insert into t2 values(1);
|
|
select a,b from t2;
|
|
a b
|
|
12 1
|
|
drop table t1,t2;
|
|
create table t1 (a int invisible, b int, c int);
|
|
create table t2 (a int, b int, d int);
|
|
insert t1 (a,b,c) values (0,2,3), (10, 20, 30);
|
|
insert t2 (a,b,d) values (1,2,4), (10, 30, 40);
|
|
select * from t1 join t2 using (a);
|
|
b c b d
|
|
20 30 30 40
|
|
select * from t1 natural join t2;
|
|
b c a d
|
|
2 3 1 4
|
|
drop table t1, t2;
|
|
CREATE TABLE t1 (c CHAR(3), t TIMESTAMP invisible);
|
|
INSERT INTO t1 (c,t) VALUES ('foo','2000-01-01 00:00:00');
|
|
CREATE TRIGGER tr BEFORE INSERT ON t1 FOR EACH ROW SET @a= 1;
|
|
INSERT INTO t1 SELECT * FROM t1;
|
|
DROP TABLE t1;
|
|
create or replace table t1 (a int, b int invisible);
|
|
insert into t1 values (1),(2);
|
|
select * from t1 into outfile 'f';
|
|
load data infile 'f' into table t1;
|
|
select a,b from t1;
|
|
a b
|
|
1 NULL
|
|
2 NULL
|
|
1 NULL
|
|
2 NULL
|
|
load data infile 'f' into table t1 (a,@v) SET b=@v;
|
|
select a,b from t1;
|
|
a b
|
|
1 NULL
|
|
2 NULL
|
|
1 NULL
|
|
2 NULL
|
|
1 NULL
|
|
2 NULL
|
|
load data infile 'f' into table t1 (a,@v) SET b=a;
|
|
select a,b from t1;
|
|
a b
|
|
1 NULL
|
|
2 NULL
|
|
1 NULL
|
|
2 NULL
|
|
1 NULL
|
|
2 NULL
|
|
1 1
|
|
2 2
|
|
truncate table t1;
|
|
insert into t1(a,b) values (1,1),(2,2);
|
|
select a,b from t1 into outfile 'a';
|
|
load data infile 'a' into table t1(a,b);
|
|
select a,b from t1;
|
|
a b
|
|
1 1
|
|
2 2
|
|
1 1
|
|
2 2
|
|
load data infile 'a' into table t1 (a,@v) SET b=@v;
|
|
select a,b from t1;
|
|
a b
|
|
1 1
|
|
2 2
|
|
1 1
|
|
2 2
|
|
1 1
|
|
2 2
|
|
load data infile 'a' into table t1 (a,@v) SET b=@v+2;
|
|
select a,b from t1;
|
|
a b
|
|
1 1
|
|
2 2
|
|
1 1
|
|
2 2
|
|
1 1
|
|
2 2
|
|
1 3
|
|
2 4
|
|
drop table t1;
|
|
#
|
|
# MDEV-23467 SIGSEGV in fill_record/fill_record_n_invoke_before_triggers on INSERT DELAYED
|
|
#
|
|
create table t1 (a int, b int invisible);
|
|
insert delayed into t1 values (1);
|
|
drop table t1;
|
|
#
|
|
# MDEV-25891 Computed default for INVISIBLE column is ignored in INSERT
|
|
#
|
|
create table t1(
|
|
a int,
|
|
x int default (a),
|
|
y int default (a) invisible,
|
|
z int default (33) invisible);
|
|
insert into t1 values (1, default);
|
|
insert into t1 (a) values (2);
|
|
select a, x, y, z from t1;
|
|
a x y z
|
|
1 1 1 33
|
|
2 2 2 33
|
|
drop table t1;
|