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<?xml version="1.0" encoding="utf-8"?>
<test>
<name>naive guess about the block index</name>
<config>
indexer
{
mem_limit = 16M
}
searchd
{
<searchd_settings/>
}
source src
{
type = mysql
<sql_settings/>
sql_query = SELECT * FROM test_table
sql_attr_uint = tag
}
index idx
{
source = src
path = <data_path/>/main
}
</config>
<queries>
<query index="idx" mode="extended2" sortby="tag DESC" >one</query>
<!-- Will fail on naive guess that the very last item of block index is the item of the whole index.
Since actually we have the block index 1 item shorter, then naive guessing, the last item will be zero,
and the rule of excluding the whole index on filtering will be applied, since no filter value lag into interval (0,0) -->
<query index="idx" mode="extended2" sortby="tag DESC" filter="tag" filter_value="200">one</query>
</queries>
<db_create>
CREATE TABLE `test_table`
(
`document_id` int(11) NOT NULL default '0',
`tag` int(11) NOT NULL default '0',
`body` varchar(255) NOT NULL default ''
)
</db_create>
<db_insert>INSERT INTO test_table VALUES ( 1,1,'' ), ( 2,2,'' ), ( 3,3,'' ), ( 4,4,'' )</db_insert>
<db_insert>INSERT INTO test_table SELECT document_id+4, tag+4, body FROM test_table</db_insert>
<db_insert>INSERT INTO test_table SELECT document_id+8, tag+8, body FROM test_table</db_insert>
<db_insert>INSERT INTO test_table SELECT document_id+16, tag+16, body FROM test_table</db_insert>
<db_insert>INSERT INTO test_table SELECT document_id+32, tag+32, body FROM test_table</db_insert>
<db_insert>INSERT INTO test_table SELECT document_id+64, tag+64, body FROM test_table</db_insert>
<!-- There must be at least 128 empty values to force the block index to be 1 item less -->
<db_insert>INSERT INTO test_table VALUES ( 200,200,'one' ), ( 201,201,'one two' ), ( 202,202,'one three' ), ( 203,203,'one four' )</db_insert>
<db_drop>DROP TABLE IF EXISTS test_table</db_drop>
</test>
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