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Fix a problem in fts3/4 that was causing it to discard data cached in-memory if an 'optimize' command is run when there is no data on disk. The usual way this would happen is if the very first transaction that writes to the fts3/4 table also includes an 'optimize' command.

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FossilOrigin-Name: 79338b991bf01e81d336790ca87a0fa747da4ff3
This commit is contained in:
dan
2016-03-09 18:17:42 +00:00
parent 69c355bd9a
commit 57ebc84a6e
4 changed files with 54 additions and 10 deletions
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44
test/fts4opt.test
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@ -166,4 +166,48 @@ do_execsql_test 2.8 {
SELECT level, count(*) FROM t2_segdir GROUP BY level;
} {0 2 1024 2 2048 2 3072 2}
#-------------------------------------------------------------------------
# Check that 'optimize' works when there is data in the in-memory hash
# table, but no segments at all on disk.
#
do_execsql_test 3.1 {
CREATE VIRTUAL TABLE fts USING fts4 (t);
INSERT INTO fts (fts) VALUES ('optimize');
}
do_execsql_test 3.2 {
INSERT INTO fts(fts) VALUES('integrity-check');
SELECT count(*) FROM fts_segdir;
} {0}
do_execsql_test 3.3 {
BEGIN;
INSERT INTO fts (rowid, t) VALUES (2, 'test');
INSERT INTO fts (fts) VALUES ('optimize');
COMMIT;
SELECT level, idx FROM fts_segdir;
} {0 0}
do_execsql_test 3.4 {
INSERT INTO fts(fts) VALUES('integrity-check');
SELECT rowid FROM fts WHERE fts MATCH 'test';
} {2}
do_execsql_test 3.5 {
INSERT INTO fts (fts) VALUES ('optimize');
INSERT INTO fts(fts) VALUES('integrity-check');
}
do_test 3.6 {
set c1 [db total_changes]
execsql { INSERT INTO fts (fts) VALUES ('optimize') }
expr {[db total_changes] - $c1}
} {1}
do_test 3.7 {
execsql { INSERT INTO fts (rowid, t) VALUES (3, 'xyz') }
set c1 [db total_changes]
execsql { INSERT INTO fts (fts) VALUES ('optimize') }
expr {([db total_changes] - $c1) > 1}
} {1}
do_test 3.8 {
set c1 [db total_changes]
execsql { INSERT INTO fts (fts) VALUES ('optimize') }
expr {[db total_changes] - $c1}
} {1}
finish_test