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Code Issues Releases Wiki Activity

Optimized database queries

This commit is contained in:
M66B 2018-08-07 15:06:18 +00:00
parent 7ffb9ea2c3
commit cc88ea4e06
1 changed files with 28 additions and 22 deletions
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50
app/src/main/java/eu/faircode/email/DaoMessage.java
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@ -31,29 +31,35 @@ import java.util.List;
@Dao
public interface DaoMessage {
// About 'dummy': "When the min() or max() aggregate functions are used in an aggregate query,
// all bare columns in the result set take values from the input row which also contains the minimum or maximum."
// https://www.sqlite.org/lang_select.html
@Query("SELECT message.*, folder.name as folderName, folder.type as folderType" +
", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_hide) AS count" +
", SUM(CASE WHEN message.ui_seen THEN 0 ELSE 1 END) AS unseen" +
", COUNT(message.id) as count" +
", SUM(CASE WHEN message.ui_seen THEN 0 ELSE 1 END) as unseen" +
", (SELECT COUNT(a.id) FROM attachment a WHERE a.message = message.id) AS attachments" +
" FROM folder" +
" JOIN message ON folder = folder.id" +
" WHERE folder.type = '" + EntityFolder.TYPE_INBOX + "'" +
" AND (NOT ui_hide OR :debug)" +
" GROUP BY thread" +
" ORDER BY received DESC")
// in theory the message id and thread could be the same
", MAX(CASE WHEN folder.type = '" + EntityFolder.TYPE_INBOX + "' THEN message.id ELSE 0 END) as dummy" +
" FROM message" +
" JOIN folder ON folder.id = message.folder" +
" WHERE (NOT message.ui_hide OR :debug)" +
" GROUP BY message.thread" +
" HAVING SUM(CASE WHEN folder.type = '" + EntityFolder.TYPE_INBOX + "' THEN 1 ELSE 0 END) > 0" +
" ORDER BY message.received DESC")
DataSource.Factory<Integer, TupleMessageEx> pagedUnifiedInbox(boolean debug);
@Query("SELECT message.*, folder.name as folderName, folder.type as folderType" +
", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_hide) AS count" +
", SUM(CASE WHEN message.ui_seen THEN 0 ELSE 1 END) AS unseen" +
", COUNT(message.id) as count" +
", SUM(CASE WHEN message.ui_seen THEN 0 ELSE 1 END) as unseen" +
", (SELECT COUNT(a.id) FROM attachment a WHERE a.message = message.id) AS attachments" +
" FROM folder" +
" JOIN message ON folder = folder.id" +
" WHERE folder.id = :folder" +
" AND (NOT ui_hide OR :debug)" +
" GROUP BY thread" +
" ORDER BY received DESC, sent DESC")
", MAX(CASE WHEN folder.id = :folder THEN message.id ELSE 0 END) as dummy" +
" FROM message" +
" JOIN folder ON folder.id = message.folder" +
" WHERE (NOT message.ui_hide OR :debug)" +
" GROUP BY message.thread" +
" HAVING SUM(CASE WHEN folder.id = :folder THEN 1 ELSE 0 END) > 0" +
" ORDER BY message.received DESC, message.sent DESC")
DataSource.Factory<Integer, TupleMessageEx> pagedFolder(long folder, boolean debug);
@Query("SELECT message.*, folder.name as folderName, folder.type as folderType" +
@ -62,10 +68,10 @@ public interface DaoMessage {
", (SELECT COUNT(a.id) FROM attachment a WHERE a.message = message.id) AS attachments" +
" FROM message" +
" JOIN folder ON folder.id = message.folder" +
" WHERE message.account = (SELECT m1.account FROM message m1 WHERE m1.id = :msgid)" +
" WHERE (NOT message.ui_hide OR :debug)" +
" AND message.account = (SELECT m1.account FROM message m1 WHERE m1.id = :msgid)" +
" AND message.thread = (SELECT m2.thread FROM message m2 WHERE m2.id = :msgid)" +
" AND (NOT ui_hide OR :debug)" +
" ORDER BY received DESC")
" ORDER BY message.received DESC, message.sent DESC")
DataSource.Factory<Integer, TupleMessageEx> pagedThread(long msgid, boolean debug);
@Query("SELECT * FROM message WHERE id = :id")
@ -75,8 +81,8 @@ public interface DaoMessage {
EntityMessage getMessage(long folder, long uid);
@Query("SELECT message.*, folder.name as folderName, folder.type as folderType" +
", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread) AS count" +
", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_seen) AS unseen" +
", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_hide) AS count" +
", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_hide AND NOT m.ui_seen) AS unseen" +
", (SELECT COUNT(a.id) FROM attachment a WHERE a.message = message.id) AS attachments" +
" FROM message" +
" JOIN folder ON folder.id = message.folder" +