great solutionthanks!
On Wednesday, July 17, 2019, 06:59:44 PM GMT+3, Dimitry Sibiryakov
s...@ibphoenix.com [firebird-support] wrote:
17.07.2019 17:54, 'Mr. John' mr_joh...@yahoo.com [firebird-support] wrote:
> I want to create a index to improve a query like that:
> SELECT *
17.07.2019 17:54, 'Mr. John' mr_joh...@yahoo.com [firebird-support] wrote:
> I want to create a index to improve a query like that:
> SELECT * FROM MYTABLE WHERE EXTRACT(YEAR FROM datein)=2019 AND
> EXTRACT(MONTH FROM
> datein)=1
Rewrite it as
SELECT * FROM MYTABLE WHERE datein
HiI want to create a index to improve a query like that: SELECT * FROM
MYTABLE WHERE EXTRACT(YEAR FROM datein)=2019 AND EXTRACT(MONTH FROM datein)=1
I can create this index: CREATE DESCENDING MYINDEX ON MYTABLE COMPUTED BY
(EXTRACT(YEAR FROM datein) || EXTRACT(MONTH FROM datein) )
and
