when new partial indices are created. This new logic is untested except to
verify that it does not interfere with full indices.
FossilOrigin-Name: fb9044d15ad4fd6ae4a38858c0c0e6fe9d4faa25
constrains the search to rows covered by the partial index. This is just
infrastructure. The key routine, sqlite3ExprImpliesExpr(), is currently a
no-op so that partial indices will never be used.
FossilOrigin-Name: 8ca3eac111e06a1854f878a74bffe8f20eb47f1b
expressions that contain variables, subqueries, or functions.
The expression is still not used for anything, however.
still unused.
FossilOrigin-Name: f2aa7842c8b9df24294f09e2bde27b3f08c455c7
This check-in is able to parse a WHERE clause on a CREATE INDEX statement, but
does not actually do anythingn with that WHERE clause yet.
FossilOrigin-Name: 6794b2dcb48b3507caccfc7867fc185818cf8291
defer_foreign_keys PRAGMA, and the SQLITE_DBSTATUS_DEFERRED_FKS parameter
to sqlite3_db_status()) into the sessions branch.
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value for sqlite3_db_status(). This is a cherry-pick of a sequence of five
checkins in the sessions branch between [1d44e5d3c2] and [d39e65fe70].
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PRAGMA journal_mode and PRAGMA wal_checkpoint. Ticket [a589ec069e3].
Also keep track of whether a prepared statement does no reading or
writing.
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This is the first step toward adding an optimization that will omit tables
from a join that do not contribute to the result.
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sqliteInt.h and into where.c. This will facilitate future refactoring
of the internal query planner data structures.
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This check-in compiles but does not work. The test suite gets incorrect
answers and crashes.
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on the compiler command-line, except keep SQLITE_THREADSAFE around so that
there is always at least one compilation option.
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instead of "mmap_limit". Also change SQLITE_CONFIG_MMAP_LIMIT and
SQLITE_FCNTL_MMAP_LIMIT to SQLITE_CONFIG_MMAP_SIZE and
SQLITE_FCNTL_MMAP_SIZE, respecctively.
The default mmap_size is now always 0, meaning that
memory mapped I/O is off by default. There is a new compile-time option
SQLITE_MAX_MMAP_SIZE that determines a hard upper bound on the mmap_size.
Setting SQLITE_MAX_MMAP_SIZE to zero disables the memory-mapped I/O logic
and causes it to be omitted from the build. An extra argument is added
to SQLITE_CONFIG_MMAP_SIZE that can optionally lower the SQLITE_MAX_MMAP_SIZE
at start-time. The SQLITE_MAX_MMAP_SIZE is zero for platforms where we
know that it does not work, meaning that it cannot be turned on by mistake
on those platforms.
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identifiers in the WHERE clause if there are no other matches. In the
ORDER BY clause, AS names take priority over any column names.
Candidate fix for ticket [2500cdb9be].
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