Hey everyone.
new to SQLite so please have patience with me
having two tables and doing left outer join
A
IDI INTEGER PRIMARY KEY
Parent INTEGER INDEX
Status INTEGER
....
B
IDR UNIQUE INTEGER FOREIGN KEY IndexME.IDI
Points TEXT (at average ~120 character string)
.... (this table is primarily used for large data, so it contains some blobs
etc...)
SELECT A.IDI, B.Text
FROM A
LEFT OUTER JOIN B ON B.IDR = A.IDI
WHERE Parent = ?
query written here is a lot simplified (for example "Points" column is filtered
using custom function) however main culprit seems to be LEFT OUTER JOIN as
accessing that same column in query which only has B table in it is lightning
fast.
result of query is just around 40 rows, (due to Parent filter) and it takes ~2
seconds on I7 3.4Ghz with database stored on SSD HDD.....
am I doing something terribly wrong ? suggestions ?
oh and I tried running ANALYZE on database connection without any visible
improvement.
thanks in advance,
M.
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