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256 lines
8.0 KiB
256 lines
8.0 KiB
# Initialise
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--disable_warnings
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drop table if exists t1,t2,t3;
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--enable_warnings
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disable_query_log;
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select "--- Testing varchar ---";
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enable_query_log;
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#
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# Simple basic test that endspace is saved
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#
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create table t1 (v varchar(10), c char(10), t text);
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insert into t1 values('+ ', '+ ', '+ ');
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set @a=repeat(' ',20);
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insert into t1 values (concat('+',@a),concat('+',@a),concat('+',@a));
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select concat('*',v,'*',c,'*',t,'*') from t1;
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# Check how columns are copied
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show create table t1;
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create table t2 like t1;
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show create table t2;
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create table t3 select * from t1;
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show create table t3;
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alter table t1 modify c varchar(10);
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show create table t1;
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alter table t1 modify v char(10);
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show create table t1;
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alter table t1 modify t varchar(10);
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show create table t1;
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select concat('*',v,'*',c,'*',t,'*') from t1;
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drop table t1,t2,t3;
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#
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# Testing of keys
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#
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create table t1 (v varchar(10), c char(10), t text, key(v), key(c), key(t(10)))
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stats_persistent=0 charset latin1;
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show create table t1;
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disable_query_log;
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let $1=10;
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while ($1)
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{
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let $2=27;
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eval set @space=repeat(' ',10-$1);
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while ($2)
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{
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eval set @char=char(ascii('a')+$2-1);
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insert into t1 values(concat(@char,@space),concat(@char,@space),concat(@char,@space));
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dec $2;
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}
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dec $1;
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}
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enable_query_log;
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select count(*) from t1;
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insert into t1 values(concat('a',char(1)),concat('a',char(1)),concat('a',char(1)));
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select count(*) from t1 where v='a';
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select count(*) from t1 where c='a';
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select count(*) from t1 where t='a';
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select count(*) from t1 where v='a ';
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select count(*) from t1 where c='a ';
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select count(*) from t1 where t='a ';
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select count(*) from t1 where v between 'a' and 'a ';
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select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
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select count(*) from t1 where v like 'a%';
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select count(*) from t1 where c like 'a%';
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select count(*) from t1 where t like 'a%';
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select count(*) from t1 where v like 'a %';
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# Test results differ for BDB, see comments in bdb.test
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# and they are also different from MySAM test results.
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--replace_column 10 #
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explain select count(*) from t1 where v='a ';
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--replace_column 10 #
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explain select count(*) from t1 where c='a ';
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--replace_column 10 #
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explain select count(*) from t1 where t='a ';
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--replace_column 10 #
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explain select count(*) from t1 where v like 'a%';
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--replace_column 10 #
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explain select count(*) from t1 where v between 'a' and 'a ';
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--replace_column 10 #
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explain select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
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--error ER_DUP_ENTRY
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alter table t1 add unique(v);
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alter table t1 add key(v);
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select concat('*',v,'*',c,'*',t,'*') as qq from t1 where v='a';
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--replace_column 7 # 10 #
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explain select * from t1 where v='a';
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#
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# GROUP BY
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# Note that we have a number of keys here that are equivalent under
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# NO PAD collations, e.g. "a" equals "a ", and there's no knowing which one
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# we get when we just say GROUP BY <field>. Thus, we add TRIM() around it
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# to get a deterministic result.
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#
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select TRIM(v),count(*) from t1 group by TRIM(v) order by TRIM(v) limit 10;
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select TRIM(v),count(t) from t1 group by TRIM(v) order by TRIM(v) limit 10;
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select TRIM(v),count(c) from t1 group by TRIM(v) order by TRIM(v) limit 10;
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select sql_big_result TRIM(v),count(t) from t1 group by TRIM(v) order by TRIM(v) limit 10;
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select sql_big_result TRIM(v),count(c) from t1 group by TRIM(v) order by TRIM(v) limit 10;
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select c,count(*) from t1 group by c order by c limit 10;
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select c,count(t) from t1 group by c order by c limit 10;
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select sql_big_result c,count(t) from t1 group by c limit 10;
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select TRIM(t),count(*) from t1 group by TRIM(t) order by TRIM(t) limit 10;
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select TRIM(t),count(t) from t1 group by TRIM(t) order by TRIM(t) limit 10;
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select sql_big_result TRIM(t),count(t) from t1 group by TRIM(t) order by TRIM(t) limit 10;
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#
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# Test varchar > 255 bytes
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#
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alter table t1 modify v varchar(300), drop key v, drop key v_2, add key v (v);
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show create table t1;
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select count(*) from t1 where v='a';
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select count(*) from t1 where v='a ';
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select count(*) from t1 where v between 'a' and 'a ';
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select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
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select count(*) from t1 where v like 'a%';
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select count(*) from t1 where v like 'a %';
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--replace_column 10 #
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explain select count(*) from t1 where v='a ';
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--replace_column 10 #
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explain select count(*) from t1 where v like 'a%';
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--replace_column 10 #
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explain select count(*) from t1 where v between 'a' and 'a ';
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--replace_column 10 #
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explain select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
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--replace_column 10 #
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explain select * from t1 where v='a';
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#
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# GROUP BY
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# See above for TRIM rationale.
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#
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select v,count(*) from t1 group by v order by v limit 10;
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select TRIM(v),count(t) from t1 group by v order by v limit 10;
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select sql_big_result TRIM(v),count(t) from t1 group by v order by v limit 10;
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#
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# Test varchar > 255 bytes, key < 255
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#
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alter table t1 drop key v, add key v (v(30));
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show create table t1;
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select count(*) from t1 where v='a';
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select count(*) from t1 where v='a ';
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select count(*) from t1 where v between 'a' and 'a ';
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select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
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select count(*) from t1 where v like 'a%';
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select count(*) from t1 where v like 'a %';
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--replace_column 10 #
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explain select count(*) from t1 where v='a ';
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--replace_column 10 #
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explain select count(*) from t1 where v like 'a%';
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--replace_column 10 #
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explain select count(*) from t1 where v between 'a' and 'a ';
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--replace_column 10 #
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explain select count(*) from t1 where v between 'a' and 'a ' and v between 'a ' and 'b\n';
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--replace_column 10 #
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explain select * from t1 where v='a';
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#
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# GROUP BY
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# See above for TRIM rationale.
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#
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select TRIM(v),count(*) from t1 group by v order by v limit 10;
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select TRIM(v),count(t) from t1 group by v order by v limit 10;
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select sql_big_result TRIM(v),count(t) from t1 group by v order by v limit 10;
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#
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# Test varchar > 512 (special case for GROUP BY becasue of
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# CONVERT_IF_BIGGER_TO_BLOB define)
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#
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alter table t1 modify v varchar(600), drop key v, add key v (v);
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show create table t1;
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select TRIM(v),count(*) from t1 group by v order by v limit 10;
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select TRIM(v),count(t) from t1 group by v order by v limit 10;
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select sql_big_result TRIM(v),count(t) from t1 group by v order by v limit 10;
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drop table t1;
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#
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# Test unique keys
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#
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SET NAMES utf8mb4; # Make sure á etc. below are interpreted correctly as UTF-8.
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create table t1 (a char(10), unique (a));
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insert into t1 values ('a ');
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--error ER_DUP_ENTRY
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insert into t1 values ('a ');
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alter table t1 modify a varchar(10);
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--error ER_DUP_ENTRY
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insert into t1 values ('a'),('á'),('à'),('å');
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--error ER_DUP_ENTRY
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insert into t1 values ('á');
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--error ER_DUP_ENTRY
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insert into t1 values ('A');
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--error ER_DUP_ENTRY
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insert into t1 values ('å');
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update t1 set a='a ' where a like 'a%';
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select concat(a,'.') from t1;
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update t1 set a='abc ' where a like 'a ';
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select concat(a,'.') from t1;
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update t1 set a='a ' where a like 'a %';
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select concat(a,'.') from t1;
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update t1 set a='a ' where a like 'a ';
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select concat(a,'.') from t1;
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drop table t1;
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SET NAMES DEFAULT;
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#
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# test show create table
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#
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create table t1 (v varchar(10), c char(10), t text, key(v(5)), key(c(5)), key(t(5)));
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show create table t1;
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drop table t1;
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create table t1 (v char(10) character set utf8);
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show create table t1;
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drop table t1;
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create table t1 (v varchar(10), c char(10)) row_format=fixed;
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show create table t1;
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insert into t1 values('a','a'),('a ','a ');
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select concat('*',v,'*',c,'*') from t1;
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drop table t1;
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#
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# Test long varchars
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#
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create table t1 (v varchar(65530), key(v(10))) charset latin1;
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insert into t1 values(repeat('a',65530));
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select length(v) from t1 where v=repeat('a',65530);
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drop table t1;
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#
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# Bug #9489: problem with hash indexes
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# Bug #10802: Index is not used if table using BDB engine on HP-UX
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#
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create table t1(a int, b varchar(12), key ba(b, a));
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insert into t1 values (1, 'A'), (20, NULL);
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explain select * from t1 where a=20 and b is null;
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select * from t1 where a=20 and b is null;
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drop table t1;
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