The generalized indexed expression optimization of [2435112867fbd7b6] makes
the prior [a47efb7c8520a011] enhancement from 2017 obsolete. This check-in
removes the older optimization.

FossilOrigin-N

The generalized indexed expression optimization of [2435112867fbd7b6] makes
the prior [a47efb7c8520a011] enhancement from 2017 obsolete. This check-in
removes the older optimization.

FossilOrigin-Name: 56442c9bdd7844454c79acf83323380ea3509cb2e0b9a3d538a6b51726ae6d07

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Add the new internal interface sqlite3DbNNFreeNN(db,ptr) where both the
db and ptr parameters are guaranteed to be non-NULL. Use this where
appropriate to save more than 2 million CPU cycles on the

Add the new internal interface sqlite3DbNNFreeNN(db,ptr) where both the
db and ptr parameters are guaranteed to be non-NULL. Use this where
appropriate to save more than 2 million CPU cycles on the standard
performance test.

FossilOrigin-Name: e5eaa80e81fdf86f2875a912b880272b8d099b82b08e945a7988c5dd0fe9d6b5

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Disable trigger coding while running sqlite3_declare_vtab().
dbsqlfuzz 97e1865771b4226f29e6e482411c1cae14133f50

FossilOrigin-Name: 387ab17b8a0a4b87903aab52abc7da79098b882aff2ab687a554d5794e9d183e

Make it so that any Parse object is always linked into the database conenction
while it is active. Hence, an OOM will cause Parse.nErr to be set.

FossilOrigin-Name: 6a45d8fe8bfbc11a5b86d25237e1f8bc

Make it so that any Parse object is always linked into the database conenction
while it is active. Hence, an OOM will cause Parse.nErr to be set.

FossilOrigin-Name: 6a45d8fe8bfbc11a5b86d25237e1f8bccfb0f22f3dcaf004ba797aeb57b365ec

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Simplify the sqlite3RunParser() routine by omitting the third parameter.
Results in a binary that is about 100 bytes smaller and 1.4M cycles faster.

FossilOrigin-Name: 6fb2a1bb0280d6e31291e3fd06bbcb

Simplify the sqlite3RunParser() routine by omitting the third parameter.
Results in a binary that is about 100 bytes smaller and 1.4M cycles faster.

FossilOrigin-Name: 6fb2a1bb0280d6e31291e3fd06bbcbbb28ef5fb27d3898e2327a50ac738ae1f3

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Performance optimization and size reduction in sqlite3RunParser().

FossilOrigin-Name: 41ee2bac5731d8434322e92abba580f7c759a137e576dd286fe01ab23fc440ea

Add ALWAYS() to a branch made unreachable by the previous check-in.

FossilOrigin-Name: 0dc963f63aebc42960125f96865029f16b3f6867126aab350da12882505edb82

Show the preferred schema table names in the output of "PRAGMA table_list".

FossilOrigin-Name: 9147390d9885a37a62edc1058f313434627f1b59965c890877d2cb119e355c78

Change a branch made unreachable by the previous check-in into an assert().

FossilOrigin-Name: 685a987c9afd1c30629c36f1ffb5e349eb2e26182837523036b916c6f81632c4

First the shadow table mechanism so that it works even if the shadow table
comes before the virtual table in the sqlite_schema table, as can happen
after a VACUUM.

FossilOrigin-Name: 005a86427735568

First the shadow table mechanism so that it works even if the shadow table
comes before the virtual table in the sqlite_schema table, as can happen
after a VACUUM.

FossilOrigin-Name: 005a8642773556825fe4c5d0b2c12517d35289308a30df0151ef7f080acb0172

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Protect access to the Expr.y union using nearby assert()s and branches.

FossilOrigin-Name: 87e2f5eb436fc448427b0e24fb70f29688796b513b8c7b12f1a21540dae1e56d

Protect every access to the Table.u union using a nearby assert() or branch.

FossilOrigin-Name: 50e08338aed7ac0cee600098d2ecd4b3b7bfd31a597bb26773badf3d2e2582c8

Ensure that sqlite_stat1 and sqlite_stat4 are ordinary tables (not views or
virtual tables) before trying to load them
(dbsqlfuzz bc02a0cde82dee801a8d6f653d2831680f87dca1). This prevents
sqlite3_dec

Ensure that sqlite_stat1 and sqlite_stat4 are ordinary tables (not views or
virtual tables) before trying to load them
(dbsqlfuzz bc02a0cde82dee801a8d6f653d2831680f87dca1). This prevents
sqlite3_declare_vtab() from running with db->init.busy turned on. Even so,
enhance sqlite3_declare_vtab() to be able to deal with db->init.busy being on,
in case there are undiscovered paths to that state.
Each of these two changes are independently sufficient to prevent the problem
fixed by the previous check-in [c7560c1329965ab5] but there
is no harm in keeping that third layer of protection in place.

FossilOrigin-Name: eb94f4a8174436b1f0deed0a43618a20018387bb815be658314ca6b454c446fb

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Refactor sqlite3.magic into sqlite3.eOpenState.

FossilOrigin-Name: e5d6512aa1fa0016a679c6e0cb665a0c67ad16f1daa0c18a96b2ebae1beefd15

Refactor the Table object to reduce its memory footprint.

FossilOrigin-Name: bbb6759bcf6e01d36dfc787a82a610d359f50aaeac8104b73883a84906d54e1f

Refactor the way that DEFAULT expressions are stored on columns, in order
to save memory in the common case where the column has no DEFAULT clause.

FossilOrigin-Name: 8646547e54211d44c415663c33775c4

Refactor the way that DEFAULT expressions are stored on columns, in order
to save memory in the common case where the column has no DEFAULT clause.

FossilOrigin-Name: 8646547e54211d44c415663c33775c4268550f8332949c4731a4bb6ec9cc663a

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Preserve and return to the user any error message returned by a failed xConnect() call on an eponymous virtual table that prevents a query from being compiled.

FossilOrigin-Name: bbbbeb59a6a14b94dcb

Preserve and return to the user any error message returned by a failed xConnect() call on an eponymous virtual table that prevents a query from being compiled.

FossilOrigin-Name: bbbbeb59a6a14b94dcbaf218cbcfbd39feba4a1df5b37c0e1a955391393eeec4

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Raise an error on an attempt to rename an eponymous virtual table.

FossilOrigin-Name: c7909e8e0d0577c6109f13c0b14fb565239aae8af8963d659f363e124f3437fc

Improvement to the INSERT optimization of check-in [16ac213c57196361] so
that it works with SQLITE_ENABLE_HIDDEN_COLUMN but is also easier to maintain
and a little faster as well.

FossilOrigin-Name:

Improvement to the INSERT optimization of check-in [16ac213c57196361] so
that it works with SQLITE_ENABLE_HIDDEN_COLUMN but is also easier to maintain
and a little faster as well.

FossilOrigin-Name: f985a78ecc0c6d9ff671c730a109d97dc781b06e47a0ab03f441cea5d021a4c3

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Fix various issues with the changes on this branch. Add test cases for the same.

FossilOrigin-Name: 10538ec6fc1642dfc2ca6cef06ce6cb9e124847b421ccf01f5842064fad379ab

Remove dead code. Fix RETURNING for INSERT into a virtual table.

FossilOrigin-Name: dbfa38699c87ab4bf390666e411dda8d375c7b53b9b4fb131adacbf575867a72

Further refactoring of the schema table name.

FossilOrigin-Name: 9536fa0ae0c1ae6e2e98d2fa11e5acda7f3c9b8ca5061b6f7f8cae63a11d936b

Provide "sqlite_schema" as an alternative name to the table that holds the
database schema.

FossilOrigin-Name: 61782a7ae3c25cf59d7a676cb295eb024d17c46e532ae78c6fe871a91d712fa9

Use the sqlite3Realloc() interface internally, rather than the public
sqlite3_realloc64() equivalent, to avoid unnecessary calls to
sqlite3_initialize().

FossilOrigin-Name: 1313557b512297e7b75ed7488

Use the sqlite3Realloc() interface internally, rather than the public
sqlite3_realloc64() equivalent, to avoid unnecessary calls to
sqlite3_initialize().

FossilOrigin-Name: 1313557b512297e7b75ed748894379b2022aecf696d5a58318e46a668321c1ff

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Rename sqlite3ExprCodeAtInit() to sqlite3ExprCodeRunJustOnce().
Other changes to make the new code cleaner. Test cases added.

FossilOrigin-Name: d7f18489978fdbbe3ab317485518cac91a75416ccef55898301a

Rename sqlite3ExprCodeAtInit() to sqlite3ExprCodeRunJustOnce().
Other changes to make the new code cleaner. Test cases added.

FossilOrigin-Name: d7f18489978fdbbe3ab317485518cac91a75416ccef55898301afdd76d3b415b

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