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177 Commits

Author SHA1 Message Date
drh
d7564865ad The sqlite3_column_decltype() routine should return NULL, not an empty string, 
if the column has no declared type.

FossilOrigin-Name: 605eba4a756e7185119088e2242f82691d078b01
 2016-03-22 20:05:09 +00:00
drh
94eaafa9ce Reduce the amount of heap required to store many schemas by storing each 
column datatype appended to the column name, rather than as a separate
allocation.

FossilOrigin-Name: 842b21162713bb141b845b01c136457a31af4ab0
 2016-02-29 15:53:11 +00:00
drh
6ad224e91e Change a char* to const char* in order to suppress some harmless 
compiler warnings.

FossilOrigin-Name: 56f62e34ae9d5c7db07367f0007df258b2e76bd2
 2016-02-24 19:57:11 +00:00
mistachkin
fad3039c51 Enhance ability to debug out-of-memory errors. 
FossilOrigin-Name: 6a9c4a3ebfb7cc0738ef6634440ccab44a21ff28
 2016-02-13 23:43:46 +00:00
drh
575fad6500 Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority 
cases where db is guaranteed to be not NULL.

FossilOrigin-Name: 0a802e96ab06e2643834b83671fa8353da1a348d
 2016-02-05 13:38:36 +00:00
drh
4a642b6060 Improvements to the way that OOM errors are processed. 
FossilOrigin-Name: c3ef03478a5788c855b3aef385d43ae7f494f440
 2016-02-05 01:55:27 +00:00
drh
2d80151f32 Combine the xFunc and xStep pointers of the FuncDef object into a single 
pointer xSFunc.

FossilOrigin-Name: 0d1b3d7d3ca66cb0b97493f1aeade1703af3c9f4
 2016-01-14 22:19:58 +00:00
drh
d7fd6aa4ba Remove two unused lines of code - discovered by scan-build. 
FossilOrigin-Name: 77b707b77496a08703fe9405e8e4521a4e5b419e
 2015-10-08 02:44:42 +00:00
dan
65c4f591be Ensure that the xSavepoint() virtual table method is correctly invoked if there are already open savepoints (or statement transactions) the first time a virtual table is written within a transaction. 
FossilOrigin-Name: 77948b5eceab92a77c39d0864ac15ad453a76fd7
 2015-09-29 16:41:23 +00:00
drh
076e85f59c Add the sqlite3VdbeLoadString() and sqlite3VdbeMultiLoad() routines to help 
with code generation, especially on PRAGMAs.  Rename sqlite3VdbeAddGoto()
to just sqlite3VdbeGoto().

FossilOrigin-Name: 847387ec8e6fef283899578fb232b2c23b00ee5b
 2015-09-03 13:46:12 +00:00
drh
d8b1bfc6bf Fix corner-case memory management issues in table-valued functions. Change 
virtual table handling so that if xDestroy is missing the table is
eponymous only even if xCreate is present.

FossilOrigin-Name: 774e6a14b124bbae4da0e188b62aee9ffb8c3745
 2015-08-20 23:21:34 +00:00
mistachkin
197d59ffc4 Skip calling the virtual table xDestroy method when it is null. 
FossilOrigin-Name: b73ad305a6b7cb84fe0a1efb334b8e4592e21c40
 2015-08-20 21:14:31 +00:00
drh
509c3fc004 Fix eponymous virtual tables so that they do not automatically make the first 
column the rowid.  Enhance the generate_series virtual table to support rowid.

FossilOrigin-Name: a325a08599759471047e234ef9cfcc3cb110aafd
 2015-08-19 19:01:28 +00:00
drh
398f872d1f Virtual table modules with a null xCreate method act as eponymous-only modules - 
they cannot be used in a CREATE VIRTUAL TABLE statement.  Add the series.c
extension that implements a postgres-like generate_series virtual table to
demonstrate this capability.

FossilOrigin-Name: c58426dbd5ea8b8440ebcc1214f79fa63d658216
 2015-08-19 13:54:20 +00:00
drh
b89c92a615 Merge changes from trunk. 
FossilOrigin-Name: dddd792dedf0c73ebe74b4ff8d303e6216c16b6a
 2015-08-19 12:52:51 +00:00
drh
0e07f6ae40 Simplification to error handling in addModuleArgument() in the virtual table 
processing.

FossilOrigin-Name: c573b0a1aa3ba509234f07520fa94d008bcbb330
 2015-08-19 12:45:57 +00:00
drh
51be3873c0 Initial implementation of eponymous virtual table instances. 
FossilOrigin-Name: c1f43a7799a9298abea01b2f8531fc7cdadc4594
 2015-08-19 02:32:25 +00:00
dan
5d03b9d365 Merge latest trunk changes with this branch. 
FossilOrigin-Name: b5f0e8c5b4bc018d672617ffd342d12b228548b9
 2015-05-13 18:12:58 +00:00
drh
f3cdcdccbe Use sqlite3_malloc64() in place of sqlite3_malloc() internally. 
FossilOrigin-Name: 48f553b05c05373c0af4b9c3a542979db3a2ee19
 2015-04-29 16:50:28 +00:00
dan
062c267dff Update this branch with latest trunk changes. 
FossilOrigin-Name: 9797482ded7de985e3b20aedec5e4d81f55065c8
 2015-04-22 09:40:35 +00:00
drh
542a176d5e Fix an off-by-one assert() in the virtual table argument tokenizer. 
FossilOrigin-Name: c83052e48bbae0f45db2a44155b4e5482ee4a901
 2015-04-19 23:11:10 +00:00
drh
a21f78b93f Bring comments on the INSERT code generator up-to-date. Fix the INSERT code 
generator so that it correctly handles inserts from a SELECT into a virtual
table with non-terminal hidden columns.

FossilOrigin-Name: 4ac81fac6c6302c042be3df493a41630b733fff0
 2015-04-19 18:32:43 +00:00
dan
ea8562edce Ensure that if a "ROLLBACK TO" statement is used to rollback (but not close) theoutermost transaction, the xRollbackTo() method of any virtual tables involved in the transaction is invoked. 
FossilOrigin-Name: e98d481d84ef31b6ed154f14deae9b261f722616
 2015-04-18 16:25:54 +00:00
dan
4e23536e56 In sqlite3_declare_vtab(), avoid accessing the database structure until after the "api-armour" safety-check has completed and the db mutex has been obtained. 
FossilOrigin-Name: 860e4f8a94901d451fac3954960c1d2f589e8882
 2015-04-10 16:05:33 +00:00
dan
75395ccd17 Do not allow virtual table constructors to be called recursively. 
FossilOrigin-Name: 0a72726da21581ab16cb3e964bd825b8f2e931e4
 2015-04-10 07:55:07 +00:00
drh
a68d628291 Prevent a virtual table from being destroyed while it is in use. 
FossilOrigin-Name: fba674c083286dabb37fed9357b67593b56ed3a5
 2015-03-24 13:32:53 +00:00
dan
71138b0f0f Merge trunk changes with this branch. 
FossilOrigin-Name: 142743918fd5a6d79fa10c44398360c3684a255a
 2015-03-21 15:45:24 +00:00
dan
7377945a7b Fix a problem with creating virtual table with names specified using malformed utf-8 within utf-16 databases. 
FossilOrigin-Name: 9969cff2d0553c9bfa88a437e1bb0cc4200d49d7
 2015-03-19 18:56:17 +00:00
drh
96c707a3c2 Improvements to SQLITE_ENABLE_API_ARMOR. 
FossilOrigin-Name: 823ad40ccb5b51aaa0d5a48da63b465df9d0649a
 2015-02-13 16:36:14 +00:00
dan
37db72f1f7 Merge latest trunk changes with this branch. 
FossilOrigin-Name: 4b3651677e7132c4c45605bc1f216fc08ef31198
 2015-01-01 18:03:49 +00:00
dan
e4bec37900 Fix various problems in fts5 revealed by fault-injection tests. 
FossilOrigin-Name: e358c3de5c916f2c851ab9324ceaae4e4e7a0fbd
 2014-12-18 18:25:48 +00:00
dan
d89b834f54 Fix a buffer overread during compilation of CREATE VIRTUAL TABLE statements that featured an explicit database name but no virtual table arguments. For example, "CREATE VIRTUAL TABLE main.ft USING fts4". 
FossilOrigin-Name: f095cde579e7417306e11b5c1d2dd90b6bb547d5
 2014-11-27 11:36:36 +00:00
drh
9ca95730e3 Add the SQLITE_ENABLE_API_ARMOR compile-time option. This is a work in 
progress and is not yet completely functional.

FossilOrigin-Name: c297a84bc678f81ffc0aa9139ab73f0ca87c1971
 2014-10-24 00:35:58 +00:00
drh
5604cc0d3b Make sure new sqlite3_vtab objects created by the xCreate() virtual table 
method are initialized by the system, in accordance with the documentation.

FossilOrigin-Name: eab82330631187dcc3e5d2dddd23dbda5752904b
 2014-10-14 20:25:43 +00:00
drh
13f40da31d Split the sqlite3Error() routine into sqlite3Error() and 
sqlite3ErrorWithMsg(), for a slight size reduction and performance increase.

FossilOrigin-Name: cf561d1f0bb60b3d638632d20bd686dda4fa4a04
 2014-08-22 18:00:11 +00:00
drh
acbcb7e013 Simplify the interface to the symbol table, saving 600 bytes of code space. 
FossilOrigin-Name: 14b0f561fe15622b61c6676c9c455dca6b9ba5f0
 2014-08-21 20:26:37 +00:00
drh
f30a969b80 Rework the logic that factors constant expressions out of inner loops, making 
it both simpler and faster.

FossilOrigin-Name: 8dc5c76c766828d7c28090bec30ff48227e7b140
 2013-11-15 01:10:18 +00:00
drh
d36e104112 Combine the FuncDef.iPrefEnc and FuncDef.flags fields into a single 
new FuncDef.funcFlags field.

FossilOrigin-Name: 97b10e66e98e84755aa577f8da017bf1aea2056c
 2013-09-06 13:10:12 +00:00
dan
016f7811f2 If a virtual table xSync() returns an error message, copy it into a buffer allocated by sqlite3DbMalloc() before transfering it to Vdbe.zErrMsg. 
FossilOrigin-Name: 854ba3049005adf033e07e6740a36e63f2a56758
 2013-08-21 17:35:48 +00:00
drh
9f01e582be Clear the error string pointer in sqlite3_vtab object after the error string 
is transferred to SQLite.  Ticket [78588b938a11].

FossilOrigin-Name: 64bf8148b84e0ebb45c12b629f49bc9b316aceba
 2013-07-17 11:54:47 +00:00
dan
e62c0694de Fix a bug in fts3 causing it to return SQLITE_NOMEM when NEAR, OR and some auxiliary functions were used together. Also a segfault in vtab.c that could follow an OOM condition. 
FossilOrigin-Name: 33f4f9817e8b3cb97ce02a4c49bd586332da37b2
 2012-10-25 19:25:39 +00:00
drh
5a55826bcd Avoid an assertion fault and/or freeing memory while it is still in use when 
an error occurs during virtual table construction.

FossilOrigin-Name: a02599ad85d02470c9effa51c02dbda7796bfa16
 2012-10-09 14:36:47 +00:00
dan
41fb5cd103 Shared-cache mode fixes for views and virtual tables. 
FossilOrigin-Name: 2b370dea704b59262c604af0efcef5660b194454
 2012-10-04 19:33:00 +00:00
drh
a371ace426 Change boolean fields in the Column object from unsigned characters into 
bits in a single bit mask variable.

FossilOrigin-Name: 4163f5f194741bc2bdf141973912661c6aac70f1
 2012-09-13 14:22:47 +00:00
drh
04f2e3403f Fix an incorrect assert in the virtual table logic - it could fire following 
an I/O error after sqlite3_close_v2() was added.

FossilOrigin-Name: 4ccc18e999c51f7f6637ee48ccca35c7706bfe6d
 2012-08-27 14:39:47 +00:00
dan
ca8b9bac3b Return SQLITE_MISUSE if an application attempts to register a virtual table module with the same name as an existing module. 
FossilOrigin-Name: ea2cd55e098b21cd8997fd6c1978131d3ef2fab4
 2012-05-16 14:29:11 +00:00
drh
81028a455d The former sqlite3ResetInternalSchema() routine was really two different 
routines, selected by parameter, each with a confused mission.  So split
this routine up into three separate smaller routines, calling each
separately as needed.  Hopefully this will make further refactoring and
schema reset collateral damage containment easier.

FossilOrigin-Name: aa0c3493d3647d7efe527067e9fcccefda8e3008
 2012-05-15 18:28:27 +00:00
dan
bba02a95d9 When a connection disconnects from a shared-cache database, only delete the in-memory schema if there are no other connections. 
FossilOrigin-Name: 46f4eb5430d7bc9a339cdf7124ff4bd518eaa39b
 2012-05-15 17:15:34 +00:00
drh
9250581af4 All virtual table constructors to be invoked recursively. A test case for 
this has been added to TH3.

FossilOrigin-Name: 696a5a40bb28c4a54c9951f877b67015dc00bf55
 2012-04-26 22:47:20 +00:00
drh
b421b894e0 Add support for IF NOT EXISTS on CREATE VIRTUAL TABLE. 
FossilOrigin-Name: 230983e86a897caa91a487ef2d4c1c7fb7c79f10
 2012-01-28 19:41:53 +00:00