"CASE WHEN x THEN y ELSE z END". For compatibility with SQL Server.
FossilOrigin-Name: fce173cd211b15867369b6a54fad48168352fc83981a722ce98e57299b88608a
to the changes at check-in [4cf8721f5ceb1fda]. But, we keep the defense
in place as an assert() for extra safety.
FossilOrigin-Name: 230556e859536bbadf0daf8133a9a01ef4f03148b3296723e37bad66e3fc3d82
end of the prepared statement, be cause if they throw an exception, it will
abort the statement even if the function is never called. Better to put
constant functions in an OP_Once block.
FossilOrigin-Name: 97a18a5cd701848a9660385e31bffe2c397e3cfe57ccdb876f44d08c00d1d39a
expressions, as they might be coming from a DEFAULT or generated column
in a table constraint.
FossilOrigin-Name: a2d6f108c5d07559b125823a04c9cb072c80be80d7913097891a6192c7e1e225
table is a virtual table to first ensure that the Expr.y.pTab pointer is not
null due to generated column optimizations. Ticket [4374860b29383380].
FossilOrigin-Name: 9d0d4ab95dc0c56e053c2924ed322a9ea7b25439e6f74599f706905a1994e454
so that it is also correctly disabled by the CASE operator.
Ticket [9d3666754ac37d5a].
FossilOrigin-Name: 29a969d6b1709b80d9cb88b60971e4eb021f7f5f8ee9a619be74b833a78a35ef
See [/doc/87aea3ab1cdda453/doc/trusted-schema.md|doc/trusted-schema.md]
for details.
FossilOrigin-Name: 5720924cb07766cd54fb042da58f4b4acf12b60029fba86a23a606ad0d0f7c68
temporary register release call before the jump that uses that temporary
register.
FossilOrigin-Name: 9da48a5ca66dc67c8f7fb2d2471dac7ea696e35ecba5ddf65747d08d452436c1
to end with OP_Copy but is not a candidate for the optimization due to jumps,
then the optimization is correctly bypassed.
FossilOrigin-Name: b36126c1889e323c9a8f04b4f4884576993c845e7d393e5e73aaa6ab5158c1f9
SQL does not specify a name, avoid the names "true" and "false" which might
be confused for the boolean literals of the same name, leading to an
inconsistent abstract syntax tree.
FossilOrigin-Name: ff9492d3ff733c222ea67f23d478df1547641b5e2e6dd870b0b29e25c13f3739
generate the code out of the copy, in case the code generator makes
modifications to expression and the Select object needs to be reused.
FossilOrigin-Name: 4edddcc0bc8d71e9b8abac67bc3766f1d9143dddd1f59264859ce65e5aa9b8c6
expr_implies_expr(). The SQLITE_TESTCTRL_INTERNAL_FUNCTIONS test-control
is modified to toggle internal function access on and off for a single
database connection.
FossilOrigin-Name: 473892a8eceacf24d57fd0c72ff2a0b8be4e0d75e0af7a30bdb24fbc3b453601
into an assert() by check-in [6ae4ad6ebee4db88] (2009-05-28) because we were
unable to find a test case for it. Yongheng's fuzzer just now
found that test case.
FossilOrigin-Name: 4d0b9109f7a5312d4e136395e08b11dad64d746bc106ad44d47675e5b1dcb4ef
the SELECT statement into just "SELECT null" so that it does not leave the
parse tree in a goofy state that can cause problems with subsequent code
before the stack has a chance to unwind and report the error.
Ticket [d87336c81c7d0873]
FossilOrigin-Name: fa58aad48a788802b13a819e49f9b8787f713bbe395c46c7295e821c52c81738
by adding the new OP_ReleaseReg opcode to tell MemAboutToChange() that a
range of registers is no longer needed so that the source register can be
freely changed. This is a change to debugging and test builds only and
does not impact release builds. Fix for ticket
[c62c5e58524b204d] and [5ad2aa6921faa1ee]. The previous fix to ticket
[5ad2aa6921faa1ee] is backed out by this change since this change is a better
fix.
FossilOrigin-Name: 36fdeb4f0a66970a35de688b617f90899c89cfdfab659f864df99aa7ebf854ea
OP_Eq and OP_Ne opcode with the same P1 and P3 arguments. This enables us
to back out check-in [ddb17d92df194337] and also fix ticket [188f912b51cd802].
FossilOrigin-Name: 9ab985a9c8160b905730678f40ed440a246cdec549c798bafefaed5abbc0437f
OP_RealAffinity, to avoid problems with a pointer accounting assert.
This change is not strictly necessary - the correct answer is obtained
without it and no UB occurs - however the pointer accounting asserts are
useful to prevent other problems so it is a simple matter to bring this
piece into compliance. Ticket [5ad2aa6921faa1ee]
FossilOrigin-Name: 89a9dad6330270a4c3b962f86a208088d2ea9883c7d291351a77f058e0ed8b0c
constraints if there are any errors, since there might otherwise be attempts
to use those CHECK constraints if PRAGMA writable_schema=ON is set.
This undoes the fix in check-in [ea721b34477ab8b4] for a more general
solution.
FossilOrigin-Name: a982e6434cd66bfbe94d455f538bcbc4360b91572062d92acae6b77e9560e65d
(or other expressions in the table definition) might not be fully resolved.
Ensure that the code generator can deal with this if the table is subsequently
used in a DML statement. dbsqlfuzz find.
FossilOrigin-Name: ea721b34477ab8b49d182352c4bc198245933b850e9b6248b4f97600e80bb44b
