Metric used in MYSQL Spatial
I am trying to determine the metric system for MySQL Spatial 5.6.12.
For example, I have the following table that created to store point geometry for multiple records.
CREATE TABLE POINTS_DATA(
LOCATION_GEO_CODES_SDO POINT NOT NULL,
After the table was created , I inserted some records into the table successfully.
Now I have constructed the following query to fetch all the records that are within one mile from a specified LAT/LONG. Here is the query I run for that.
SELECT RECORD_ID, STREET_ADDRESS, CITY, STATE, ZIPCODE
, POINT(-85.123,39.113))) AS DISTANCE
HAVING DISTANCE < 1 ORDER BY DISTANCE;
After running this query, I do get some records, but the distance does not seem to be in Miles or meters. ..its some fractional value like 0.0123, 0.0145...etc
I could not find any documentation on this anywhere in MySQL?. Does anyone know what metric system is in use in MySQL?..and if there is , how can I convert it into miles?
That means, if I need to run the query above to fetch all records within one mile, how do I reconstruct it?. Thanks in advance.