sqlite3VdbeCheckFkImmediate() and sqlite3VdbeCheckFkDeferred(), which
run faster than the combined general-purpose variant.
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that can cause invalid data to be used for a column if that column has a
CHECK constraint that includes the NOT NULL or IS NULL operator.
Problem discovered by the
[https://issues.chromium.org/issues/415397143|Chromium fuzzer]. Never
seen in the wild, as far as anybody knows.
FossilOrigin-Name: 2adaee9aa90f280a406007695fbc4a314806584c93d6b62b46c031492b31ec27
See [forum:/forumpost/792a09cb3df9e69f|forum post 792a09cb3d] for
a description of the problem. Also improve comments related
to [baa83b460c677c21] which was origin of the problem.
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text of an SQL statement, but the SQL statement text at the end so that if
the error message buffer overflows it is the SQL statement text that gets
truncated, not the statement of the problem.
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pacify -fsanitize=strict-bounds. This check-in fixes the core. There is
more yet to do in FTS3, RTREE, and in FTS5.
FossilOrigin-Name: 6fd6b32d06bd6a705e5140cd613af823b8183a6f6a9ceeeedfcf5e8b50821d68
happen during memory allocation. No problems fixed; this change is just
to make future maintenance easier.
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assert()s to ensure they are correct. Other Parse changes to reduce the
amount of memset() needed to initialize it.
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in about 8x faster performance under -DSQLITE_DEBUG for the query in from
[forum:/forumpost/0025389d0860af82|forum post 0025389d0860af82]. This change
only affects builds that use -DSQLITE_DEBUG.
FossilOrigin-Name: 7fb1ae25d1572dd7709a0f850c148a5f745a524f01ea231e29a1ebc37c173fb9
known path to a UAF currently exists. This change just helps with the static
analysis to prove it.
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vdbe.c so that it will be available when needed, even for non-amalgamation
builds.
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OP_Explain opcodes associated with WhereLoops, for testing purposes.
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term is participating in a RIGHT or FULL JOIN, we have to create an
always-NULL pseudo-cursor for that term when processing the RIGHT join.
dbsqlfuzz 6fd1ff3a64bef4a6c092e8d757548e95698b0df5.
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implemented using the VALUES-as-coroutine optimization.
dbsqlfuzz bde3bf80aedf25afa56e2997a0545a314765d3f8.
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would have detected the code generator problem fixed by the previous check-in.
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still make an entry in the sqlite_stat1 table for the partial index, so that
we know that "PRAGMA optimize" does not need to redo the whole table.
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have both a text and a numeric type, make sure the numeric type does not
confuse the answer. This is a deeper fix to the problem observed by
[forum:/forumpost/3776b48e71|forum pose 3776b48e71]. The problem bisects
to [25f2246be404f38b] on 2014-08-24, prior to version 3.8.7.
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the problem of a Table object being deleted out from under the OP_VCheck
opcode. We need to reference count the Table, which is accomplished here.
FossilOrigin-Name: cad269d5e274443c39203a56603b991accc0399135d436996fc039d1d28ec9db
can happen on some very obscure conditions, as discovered by dbsqlfuzz.
Test case in TH3.
FossilOrigin-Name: 7946c79567b0ccd3a00d12390e99896d7dc11407d0b52bc39338a16a493f56f6
