On Fri, Aug 15, 2014 at 3:45 PM, Hugues Peccatte <
hugues.peccatte(a)gmail.com> wrote:
2014-08-15 9:54 GMT+02:00 Smita <kumarismita62(a)gmail.com>om>:
Hi,
I came across the bug #4444
<http://sourceforge.net/p/phpmyadmin/bugs/4444/> related to export
feature for queries.
I'm not sure how exactly this feature is supposed to behave if we are
exporting rows with some but not all columns and also in case we have
aliases and even when we have join queries.
Assume we have tables:
actor (actor_id, first_name, last_name, city_id) with actor_id as
primary key.
address (address_id, adress, city_id, city_id, district, postal_code,
phone) with address_id as primary key and phone have not null unique
constraints.
1. when we select some but not all columns ex,
Select address_id, address from address:
when exported few of the rows, it have create table statement for table
'address' with all the original columns not just these two. and data from
just these two columns in the Insert statements. so here when the same
exported file, we wish to import back will not work as phone have unique
constraint and we are not inserting the phone values.
Also If user is seeing just two of the columns in the table structure at
screen so they might be doing export thinking that it will be exporting the
same structure as on the screen.
Hi,
I agree that the "CREATE TABLE" should have the same structure that the
data to "INSERT".
2. When we have aliases in column names:
ex: select actor_id, first_name as fname from actor;
So when we export few of the resultant rows, should the create table
statement have a column name first_name or fname ?. As I think of it, It
should be fname, if user have in mind that he is exporting the structure of
the table he is looking at screen.
I agree that we should have the field alias as the column name. With this
feature, the user can keep the original name by not using aliases.
3. When we have alias in table names:
The name of the table in create statement should be alias name or
original table name?
Again, I agree with table alias as the name of new table, for the same
reason.
Hi Hugues,
Thanks. As Chirayu mentioned RFE #759
<http://sourceforge.net/p/phpmyadmin/feature-requests/759/> seems to fix
table and column aliasing issue(point 2 and 3), I tested with current
master. Sorry, earlier I was working with QA_4_2 branch.
But CREATE table has the same structure as original structure even if
SELECT have some but not all the columns, I'm not sure if that is intended.