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Heng Xing Tian Tai Lab of Xi'an City (abbr, HXTT)

HXTT ACCESS
ALTER TABLE on PK
Philippe Gervaise
2016-10-25 23:42:08.0
Hi,

We do an alter on a column of a table concerned by a index.
The problem is that the index is dropped.

I understand that the ALTER on an indexed column has an impact on the index but deletion is problematic.

Thank you.
Re:ALTER TABLE on PK
HXTT Support
2016-10-26 07:34:14.0
What's your sql? Alter table sql will result the total table structure reconstruct sometimes.
Re:Re:ALTER TABLE on PK
Philippe Gervaise
2016-10-26 07:46:56.0
For example :

CREATE TABLE test (col VARCHAR(6))
CREATE INDEX testPK ON test (col UNIQUE PRIMARY KEY ASC)
ALTER TABLE test MODIFY col VARCHAR(10)

=> The index is deleted but I expected immediate re-creation
Re:Re:Re:ALTER TABLE on PK
HXTT Support
2016-10-26 23:33:31.0
Supported. Please download the latest packaga.

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