Connecting to the core with a big sqlite storage (>500MB) can become
extremely slow or even time out. Adding an index over the tuples
(bufferid, messageid) speeds up the connection significantly, because
at connection time a lot of queries over these two values are
processed.
Modified by @digitalcircuit from original commit to add a new schema
upgrade.
Closes GH-313 and GH-244.
--- /dev/null
+CREATE INDEX backlog_buffer_msg_idx ON backlog (bufferid, messageid)
--- /dev/null
+CREATE INDEX backlog_buffer_msg_idx ON backlog (bufferid, messageid)
<file>./SQL/SQLite/setup_080_ircservers.sql</file>
<file>./SQL/SQLite/setup_090_backlog_idx.sql</file>
<file>./SQL/SQLite/setup_100_backlog_idx2.sql</file>
<file>./SQL/SQLite/setup_080_ircservers.sql</file>
<file>./SQL/SQLite/setup_090_backlog_idx.sql</file>
<file>./SQL/SQLite/setup_100_backlog_idx2.sql</file>
+ <file>./SQL/SQLite/setup_110_backlog_idx3.sql</file>
<file>./SQL/SQLite/setup_110_buffer_user_idx.sql</file>
<file>./SQL/SQLite/setup_120_user_setting.sql</file>
<file>./SQL/SQLite/setup_130_identity.sql</file>
<file>./SQL/SQLite/setup_110_buffer_user_idx.sql</file>
<file>./SQL/SQLite/setup_120_user_setting.sql</file>
<file>./SQL/SQLite/setup_130_identity.sql</file>
<file>./SQL/SQLite/version/23/upgrade_000_alter_quasseluser_add_authenticator.sql</file>
<file>./SQL/SQLite/version/24/upgrade_000_create_senderprefixes.sql</file>
<file>./SQL/SQLite/version/25/upgrade_000_alter_buffer_add_bufferactivity.sql</file>
<file>./SQL/SQLite/version/23/upgrade_000_alter_quasseluser_add_authenticator.sql</file>
<file>./SQL/SQLite/version/24/upgrade_000_create_senderprefixes.sql</file>
<file>./SQL/SQLite/version/25/upgrade_000_alter_buffer_add_bufferactivity.sql</file>
+ <file>./SQL/SQLite/version/26/upgrade_000_create_buffer_idx.sql</file>