Hello!

This query produce full-scan of the FTS3 virtual table 'data':
sqlite> select count(*) from data where rowid in (1);
^CError: interrupted
After 30 minuts I cancel the query.

sqlite> explain query plan select count(*) from data where rowid=1;
0|0|TABLE data VIRTUAL TABLE INDEX 1:

sqlite> explain query plan select count(*) from data where rowid in (1);
0|0|TABLE data VIRTUAL TABLE INDEX 0:

Best regards, Alexey Pechnikov.
http://pechnikov.tel/
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