Below is my PHP function to call nearby points using Sphinx for MySQL. There are hundreds of thousands of nearby points which to what I can tell, are being indexed by Sphinx, but simply fails silently when searching with Sphinx. Other Sphinx queries I run against other indexes work completely fine.
function nearby($latitude, $longitude, $radius)
{
global $sphinx;
$sphinx->SetMatchMode(SPH_MATCH_ALL);
$sphinx->SetArrayResult(true);
$sphinx->SetLimits(0, 1000);
$sphinx->SetGeoAnchor('latitude', 'longitude', (float) deg2rad($latitude), (float) deg2rad($longitude));
$circle = (float) $radius * 1.609344;
$sphinx->SetFilterFloatRange('@geodist', 0.0, $circle);
$matches = $sphinx->Query('', 'geo');
return $matches;
}
$nearby = nearby($latitude, $longitude, 10000);
var_dump($nearby);
This, when called with valid latitude and longitude co-ords and a very large radius for debugging produces:
bool(false)
Below is my sphinx.conf covering the geo part:
source geo
{
type = mysql
sql_host = 127.0.0.1
sql_user = user
sql_pass = pass
sql_db = db
sql_port = 3306
sql_query_pre = set names utf8
sql_query_pre = set session query_cache_type=OFF
sql_query = SELECT id,city,region,country,radians(longitude) AS longitude, radians(latitude) AS latitude FROM points;
sql_attr_float = longitude
sql_attr_float = latitude
sql_ranged_throttle = 0
sql_query_info = SELECT * FROM points WHERE id = $id
}
index geo
{
source = geo
path = /var/data/geo
docinfo = extern
#mlock = 0
#morphology = none
min_word_len = 1
charset_type = utf-8
#charset_table = 0..9, A..Z->a..z, _, a..z, U+410..U+42F->U+430..U+44F, U+430..U+44F
ignore_chars = U+00AD
html_strip = 0
enable_star = 0
}
indexer
{
mem_limit = 1024M
}
searchd
{
port = 3312
log = /var/log/searchd.log
query_log = /var/log/query.log
read_timeout = 5
max_children = 5
pid_file = /var/log/searchd.pid
max_matches = 10000
seamless_rotate = 1
preopen_indexes = 0
unlink_old = 1
}
