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BUG#11759349 - 51655: CREATE TABLE IN MEMORY ENGINE DOESN'T STORE

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CREATE_TIME IN INFORMATION_SC

It was impossible to determine MEMORY table creation time,
since it wasn't stored/exposed.

With this patch creation time is saved and it is available via
I_S.TABLES.CREATE_TIME.

Note: it was decided that additional analysis is required before
implementing UPDATE_TIME. Thus this patch doesn't store UPDATE_TIME.
This commit is contained in:
Ashish Agarwal
2011-09-27 17:38:51 +05:30
parent 3f5c0cc78b
commit d8c68db1f1
8 changed files with 40 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
mysql-test/r/heap.result
View File

@@ -715,8 +715,8 @@ create table t1 (c char(10)) engine=memory;
create table t2 (c varchar(10)) engine=memory;
show table status like 't_';
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MEMORY 10 Fixed 0 11 0 # 0 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 0 12 0 # 0 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t1 MEMORY 10 Fixed 0 11 0 # 0 0 NULL # NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 0 12 0 # 0 0 NULL # NULL NULL latin1_swedish_ci NULL
drop table t1, t2;
CREATE TABLE t1(a VARCHAR(1), b VARCHAR(2), c VARCHAR(256),
KEY(a), KEY(b), KEY(c)) ENGINE=MEMORY;

44
mysql-test/r/show_check.result
View File

@@ -458,57 +458,57 @@ insert into t2 values (1),(2);
insert into t3 values (1,1),(2,2);
show table status;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MEMORY 10 Fixed 2 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 2 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 2 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t1 MEMORY 10 Fixed 2 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 2 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 2 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
insert into t1 values (3),(4);
insert into t2 values (3),(4);
insert into t3 values (3,3),(4,4);
show table status;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MEMORY 10 Fixed 4 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 4 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 4 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t1 MEMORY 10 Fixed 4 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 4 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 4 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
insert into t1 values (5);
insert into t2 values (5);
insert into t3 values (5,5);
show table status;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MEMORY 10 Fixed 5 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 5 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 5 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t1 MEMORY 10 Fixed 5 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 5 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 5 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
delete from t1 where a=3;
delete from t2 where b=3;
delete from t3 where a=3;
show table status;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MEMORY 10 Fixed 4 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 4 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 4 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
t1 MEMORY 10 Fixed 4 # # # # # NULL # NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 4 # # # # # NULL # NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 4 # # # # # NULL # NULL NULL latin1_swedish_ci NULL
truncate table t1;
truncate table t2;
truncate table t3;
show table status;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MEMORY 10 Fixed 0 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 0 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 0 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t1 MEMORY 10 Fixed 0 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 0 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 0 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
insert into t1 values (5);
insert into t2 values (5);
insert into t3 values (5,5);
show table status;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MEMORY 10 Fixed 1 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 1 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 1 # # # # 0 NULL NULL NULL NULL latin1_swedish_ci NULL
t1 MEMORY 10 Fixed 1 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 1 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 1 # # # # 0 NULL # NULL NULL latin1_swedish_ci NULL
delete from t1 where a=5;
delete from t2 where b=5;
delete from t3 where a=5;
show table status;
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 MEMORY 10 Fixed 0 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 0 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 0 # # # # # NULL NULL NULL NULL latin1_swedish_ci NULL
t1 MEMORY 10 Fixed 0 # # # # # NULL # NULL NULL latin1_swedish_ci NULL
t2 MEMORY 10 Fixed 0 # # # # # NULL # NULL NULL latin1_swedish_ci NULL
t3 MEMORY 10 Fixed 0 # # # # # NULL # NULL NULL latin1_swedish_ci NULL
drop table t1, t2, t3;
create database mysqltest;
show create database mysqltest;
@@ -659,7 +659,7 @@ DROP TABLE t1;
flush tables;
SHOW TABLE STATUS like 't1';
Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
t1 NULL NULL NULL NULL # # # # NULL NULL NULL NULL NULL NULL NULL NULL Incorrect information in file: './test/t1.frm'
t1 NULL NULL NULL NULL # # # # NULL NULL # NULL NULL NULL NULL NULL Incorrect information in file: './test/t1.frm'
Warnings:
Warning 1033 Incorrect information in file: './test/t1.frm'
show create table t1;