How to extract Sphinx group by numbers from result set? - php

Question

I need some help on Sphinx MySql index group by.
I have a product table where I have product ids and corresponding retailer ids. What I want to do is to create a simple list to show the retailers' names along with how many products it has in the table:
standard SQL: select retailerid, count(productid)as cnt from tblproducts
Sphinxs: select * from tblproducts1 group by retailerid
I am using Sphinx 2.0.1-beta
The reason I want to use Sphinx is, because the number of products will be filtered by a complex match full text query, on product name and description etc.
Now my question is, how do I get these numbers/ids from the result returned by Sphinx? As I am using php to display results, I would like if somebody can show me some useful php code to extract these numbers from the result set. The result array returned by Sphinx is confusing me even more; I do not see any reference to the product count anywhere!
I am sure that Sphinx returns these numbers as it supports group by and count, but how do I extract the numbers from the result set?
Below is from my config file:
sql_query = \
SELECT ProductId, ProductName, ProductModel, ProductDesc, ProductManf, ProductHeader, \
ProductPrice, ProductPrePrice, ProductFetchDate, m.MerchantId, m.MerchantActive FROM tblproducts p \
inner join tblmerchantlist m on p.MerchantId=m.MerchantId
sql_attr_uint = MerchantActive
sql_attr_float = ProductPrice
sql_attr_float = ProductPrePrice
sql_group_column = MerchantId
sql_query_info = SELECT * FROM tblproducts WHERE ProductId=$id
UPDATE
I would expect so, but I don't see the reference to count in the below resultset. I must be making some mistakes somewhere:
Array ( [error] => [warning] => [status] => 0 [fields] =>
Array ( [0] => productname [1] => productmodel [2] => productdesc [3] => productmanf [4] => productheader [5] => productfetchdate ) [attrs] =>
Array ( [productprice] => 5 [productpreprice] => 5 [merchantid] => 1 [merchantactive] => 1 ) [matches] =>
Array ( [0] =>
Array ( [id] => 694173 [weight] => 396305 [attrs] =>
Array ( [productprice] => 1568.48999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) [1] =>
Array ( [id] => 901921 [weight] => 396305 [attrs] =>
Array ( [productprice] => 1533.48999023 [productpreprice] => 1536.98999023 [merchantid] => 12 [merchantactive] => 1 ) ) [2] =>
Array ( [id] => 302573 [weight] => 249249 [attrs] =>
Array ( [productprice] => 1059.98999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) [3] =>
Array ( [id] => 302579 [weight] => 249249 [attrs] =>
Array ( [productprice] => 1179.98999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) [4] =>
Array ( [id] => 302592 [weight] => 249249 [attrs] =>
Array ( [productprice] => 1429.48999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) [5] =>
Array ( [id] => 302595 [weight] => 249249 [attrs] =>
Array ( [productprice] => 1592.98999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) [6] =>
Array ( [id] => 302597 [weight] => 249249 [attrs] =>
Array ( [productprice] => 1129.98999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) [7] =>
Array ( [id] => 406798 [weight] => 249249 [attrs] =>
Array ( [productprice] => 2419.98999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) [8] =>
Array ( [id] => 407480 [weight] => 249249 [attrs] =>
Array ( [productprice] => 1287.48999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) [9] =>
Array ( [id] => 693715 [weight] => 249249 [attrs] =>
Array ( [productprice] => 1234.98999023 [productpreprice] => 0 [merchantid] => 12 [merchantactive] => 1 ) ) ) [total] => 29301 [total_found] => 29301 [time] => 0.137 [words] =>
Array ( [select] =>
Array ( [docs] => 390 [hits] => 462 ) [from] =>
Array ( [docs] => 4332 [hits] => 4637 ) [tblproducts1] =>
Array ( [docs] => 0 [hits] => 0 ) [where] =>
Array ( [docs] => 395 [hits] => 448 ) [match] =>
Array ( [docs] => 108 [hits] => 111 ) [cyberpowerpc] =>
Array ( [docs] => 66 [hits] => 132 ) [gamer] =>
Array ( [docs] => 307 [hits] => 715 ) [xtreme] =>
Array ( [docs] => 410 [hits] => 725 ) [1310lq] =>
Array ( [docs] => 2 [hits] => 6 ) [in] =>
Array ( [docs] => 16196 [hits] => 19786 ) [canada] =>
Array ( [docs] => 1146 [hits] => 1200 ) [group] =>
Array ( [docs] => 5716 [hits] => 5732 ) [by] =>
Array ( [docs] => 2143 [hits] => 2289 ) [merchantid] =>
Array ( [docs] => 0 [hits] => 0 )
)
)

Answer 1

There is a magic attribute #count that added to your result set for that query
select * from tblproducts1 group by retailerid
The attribute list in result set looks like
id, weight, MerchantActive, ... #groupby, #count
In case you use compat_sphinxql_magic=0 option in searchd section you have explicitly define and alias all needed attributes like
select *, weight(*) as w, count(*) as c from tblproducts1 group by retailerid
The attribute list in result set would look like
id, MerchantActive, ... w, c