I am unable to reproduce the problem you are seeing when I run the following script using Derby 10.10.1.1:
create table attachment( guid int, file_name varchar( 10 ) );
create index ATTACHMENT_LINKNAMES_INDEX on attachment( guid, file_name );
--DERBY-PROPERTIES index = ATTACHMENT_LINKNAMES_INDEX
The error message you're seeing is raised by the parser. I have extracted the relevant method from the 10.10.2.0 parser into the attached zzz.java program. I am unable to reproduce the problem you're seeing when I run that program on your text. Try setting the PROPS field in that program equal to what follows "--DERBY-PROPERTIES" in your query and see if you can tickle the program into failing.
Hope this helps,
On 4/11/14 9:33 AM, Frank Rivera wrote:
We have a simple query using LIKE but is very slow.
We need to tell the optimizer which index to use but the override DERBY-PROPERTIES statement returns the following error.
*Invalid syntax for optimizer overrides. *The syntax should be -- DERBY-PROPERTIES propertyName = value [, propertyName = value]*
Here is the SQL. The index does exist.
*--DERBY-PROPERTIES *index = ATTACHMENT_LINKNAMES_INDEX
esq.attachment.file_name LIKE ‘%drisco%'
OR esq.attachment.file_index_name LIKE ‘%drisco%'
esq.attachment.link_guid IS NOT NULL
esq.attachment.link_guid IN (
( esq.matter.grp_guid=0 OR esq.matter.grp_guid IS NULL ) OR ( esq.matter.grp_guid>0 AND esq.matter.grp_guid IN ( 2,1,6,4,3 ) )
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