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194 Commits

Author SHA1 Message Date
drh b6bf97b384 Remove two redundant initializations from the virtual table logic. 
FossilOrigin-Name: 6bd82b95a6b78bb60569af4da58ef4b9f997fe7b
 2017-02-16 15:06:06 +00:00
drh 44266ec651 Always use the IsVirtual() macro to determine if a Table object is a virtual 
table.  Slightly smaller and faster code.

FossilOrigin-Name: 6affb1c89d87288cad87dde5a533832cdf06b8aa
 2017-02-16 14:48:08 +00:00
drh 9a63f09204 Minor bug fixes and enhancements to the pragma eponymous virtual tables. 
FossilOrigin-Name: 3f8f461504139a4efea0e033e3a274cc4b2d3072
 2016-12-16 02:14:15 +00:00
drh c06bbceb9c Merge enhancements from trunk, and especially the ability to use 
temp.sqlite_master as an alias for sqlite_temp_master.

FossilOrigin-Name: 994a4401f5c34fed17af420761291b03072a5ea1
 2016-12-16 01:09:22 +00:00
drh e0a04a36a6 All temp.sqlite_master to be used as an alias for sqlite_temp_master. 
FossilOrigin-Name: 8d646905b830d5bb29092e103ac5cb499b3c7e5a
 2016-12-16 01:00:21 +00:00
drh 2fcc1590c4 Code to automatically create eponymous virtual tables for read-only pragmas. 
Compiles, but does not yet work.

FossilOrigin-Name: 988a61e8b03f302c69d11898d1ea95f002cba1a5
 2016-12-15 20:59:03 +00:00
drh 79df77821a Refactor the Table.nRef field as Table.nTabRef for easier grepping. 
FossilOrigin-Name: 9cae4c2e300e20304ced0dc8c1415c4922185928
 2016-12-14 14:07:35 +00:00
drh 2e5c5052fd Fix typos in comments. No changes to running code. 
FossilOrigin-Name: a07269f2a0f87e0b736127f528f6caf3b63f9052
 2016-08-27 20:21:51 +00:00
drh 69c338263a Rename the Db.zName field to Db.zDbSName to make it more descriptive and to 
distinguish it from all of the other "zName" variables scattered throughout
the code.

FossilOrigin-Name: 92a22f01343a898455fd61c3b8e7d7c954f5b569
 2016-08-18 14:33:11 +00:00
drh 5360b55c6c Remove an incorrect ALWAYS() statement and add a test case to show when 
the condition is sometimes false.

FossilOrigin-Name: 0f57effa3642e66a863f32cc7fba86d167084af3
 2016-08-05 15:34:42 +00:00
dan 914b7e4238 Fix a problem introduced by [77948b5eceab92a7] causing duplicate calls to be made to the xSavepoint() method of virtual tables under some circumstances. 
FossilOrigin-Name: e64a4173d2899acf13b73e6e28f2e164fd638a75
 2016-08-02 11:29:16 +00:00
drh 0b2c140a4d Fix a memory leak when a WITHOUT ROWID eponymous virtual table is used. 
FossilOrigin-Name: 31b83a7d7e553163eb186fc966a885f237554ec2
 2016-06-03 18:21:04 +00:00
drh 7edcf627af Disallow access to the rowid column on WITHOUT ROWID virtual tables. 
FossilOrigin-Name: d31c25972bfb6d04caad05534505698776e7e6d5
 2016-06-03 17:27:14 +00:00
drh ac9c3d2c18 Performance optimizations on the CSV virtual table. Disallow WITHOUT ROWID 
virtual tables that have an xUpdate method, for now.

FossilOrigin-Name: 3134b3266c36c9d018e8d365ef46ef638c0792f4
 2016-06-03 01:01:57 +00:00
drh 273bfe9f20 Fix corner cases in the WITHOUT ROWID virtual table logic. 
FossilOrigin-Name: a393bbb972660c1ffcdda923d0f3564ecfcd2f0a
 2016-06-02 16:22:53 +00:00
drh 62340f8498 An experimental branch with code that allows virtual tables to be declared 
as WITHOUT ROWID tables. This might be useful for virtual tables that model
external data sources that do not have a convenient way of computing a unique
rowid.  The current check-in almost works, but there are still serious issues.

FossilOrigin-Name: 49638f180e26477974cacc69b79e0be0a5e18b29
 2016-05-31 21:18:15 +00:00
drh 01c736db40 Use sqlite3VdbeAddOp0() to code OP_Expire, to save a few bytes. 
FossilOrigin-Name: 3d55d24dcb27f07d1e645738ee4707e4df923036
 2016-05-20 15:15:07 +00:00
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