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Commit Graph

2082 Commits

Author SHA1 Message Date
dan
d35300f9b6 Parse EXCLUDE clauses in window frames. They do not yet work.
FossilOrigin-Name: d03c7533a1e993f1b12392a5193b2127484307b27072236a1255e7a30849a381
2019-03-14 20:53:21 +00:00
dan
a0f6b83300 Add things to this branch that will be required to support the EXCLUDE clause.
FossilOrigin-Name: 7d66cd2013206ebad50c7cdb7dab9211fa8b47f5cb7067dcb314b3e0180875f8
2019-03-14 16:36:20 +00:00
dan
b6f2deac3c Avoid allocating excessive registers for the PARTITION BY expressions when processing window functions.
FossilOrigin-Name: 180be266238e18c01f8bd52c75dd9aa3e26e553620258141cd95189a0ae59ddb
2019-03-13 17:20:27 +00:00
dan
cc7a850f2e Remove "cache mode" from the window frame code generator. Handle the same cases by editing the window frame specification itself.
FossilOrigin-Name: 081263538332bb9c07e62630629007ccbba31bef5dc890f60b4ba58a355f70ac
2019-03-11 19:50:54 +00:00
dan
b33487b0b6 Improvements to the way built-in window functions are handled.
FossilOrigin-Name: e8eee566dfca6f4c8af074731dfe91f7fbcd9ca72f0303235b52e4e2e80d5b71
2019-03-06 17:12:32 +00:00
dan
4e72e62f3b Merge trunk changes into this branch.
FossilOrigin-Name: 9b4d561f68febdab6624d8c567fb4357bf67dda500664cf708d16a76f37b8ec1
2019-03-04 21:08:53 +00:00
dan
680f6e8e2e Support some "ROWS BETWEEN N PRECEDING AND M FOLLOWING" window functions without caching entire partitions.
FossilOrigin-Name: e7a91f12282afb5d5d7d78397a11d18e0268ee0c931d85e21fce00d13929494e
2019-03-04 21:07:11 +00:00
drh
50ef6716d2 Make all ephemeral tables built to hold the RHS of an IN operator be
index-btrees, never table-btrees, regardless of whether or not they are
used as IN_INDEX_LOOP or IN_INDEX_MEMBERSHIP.  That way, the same ephmerial
table can be reused for both cases.

FossilOrigin-Name: c2d50df8fd1a1fdae6226a3e77296ded09b53a74540caedd4868e686a93cbc10
2019-02-22 23:29:56 +00:00
dan
e7c9ca41b2 Add support for chaining of WINDOW definitions.
FossilOrigin-Name: c155125fd5dddb438c09d40f5137c47d88defb7a6ede4261f09d7bdaad250d37
2019-02-16 17:27:51 +00:00
drh
1cf197583d Give the sqlite3 object a pointer to the current Parse so that if an OOM
occurs, it can automatically set the Parse.rc value to SQLITE_NOMEM.  This
avoids a frequent extra test of db.mallocFailed in the innermost parser loop.

FossilOrigin-Name: 5c6638040b3017c6be016441422d965a3ca00dd6ae1f78cadc0b54562978f64e
2019-02-08 14:55:30 +00:00
drh
e5989723ba Honor key query parameters for SEE on the URI filename for ATTACH
and VACUUM INTO.

FossilOrigin-Name: 2e01096b8933a2315e3dffcd7d0de84c744c1b4be1d909388c61f0fd636ddb99
2019-02-02 15:59:49 +00:00
drh
23a885956e Add the SQLITE_CONFIG_MEMDB_MAXSIZE configuration option for configuring
the default maximum size of an in-memory database created using
sqlite3_deserialize().  This is necessary to make the interface reasonably
testable.

FossilOrigin-Name: cb72ee0478ce98c48aae059fd5de4e36caf2b8c953e08fcb799bfd119ad46b73
2019-01-31 15:38:53 +00:00
drh
9b747068ba Improvements to "PRAGMA parser_trace=ON": Make it a flag pragma, and then
use the flag to show the complete SQL text at the beginning of the parse.

FossilOrigin-Name: 507c43537f00d089efb3c3020fb6e826e8f89f3efa2caaa12c5309d35dd0c22e
2019-01-31 01:39:01 +00:00
drh
8d40673c84 Detect if two indexes of the same table share a common rootpage while
parsing the schema, and throw an error immediately.

FossilOrigin-Name: f21c6f1343edc4ba68f9f8e68caac34da0d1c651526ecaf61c0e2d66593a555e
2019-01-30 18:33:33 +00:00
drh
29c992cb04 Revamp the SrcList allocator routines to be methods of Parse instead of
being methods of the "sqlite3" object, so that they can leave better error
messages when the SrcList object grows too large.

FossilOrigin-Name: df08d472b090b212fb77ce2aae0e1ffe79ae5db4b1accf55e6fdb18e8b0a7098
2019-01-17 15:40:41 +00:00
drh
51d35b0fa9 The keywords TRUE and FALSE should only act as boolean literal values if
unquoted.

FossilOrigin-Name: 5547f39de993c708f72301ef25df190a2f007e0c4253799bdd9e86bb1ae41777
2019-01-11 13:32:23 +00:00
drh
5f913ecb62 Use the new SQLITE_IDXTYPE_IPK values (3) on Index.idxType to indicate the
fake INTEGER PRIMARY KEY index used during query planning.

FossilOrigin-Name: e22d2f905fe840bea51b536ebedc9b637190ea0a37f16559668d99a61e971411
2019-01-10 13:56:08 +00:00
drh
885eeb676b Enhance the ALTER TABLE RENAME COLUMN feature so that it works on tables
that have redundant UNIQUE and/or PRIMARY KEY constraints.
Fix for ticket [bc8d94f0fbd633fd9a051e3]

FossilOrigin-Name: f09aa3248e2b4a32ff5b5d37084cb2a27445322cb06a3354cef723f4f0b2cd34
2019-01-09 02:02:24 +00:00
drh
6b86e51eea If the OP_ParseSchema opcode with a non-NULL P4 operand does not parse any
rows out of the sqlite_master table, that indicates that the sqlite_master
table is corrupt, so raise an SQLITE_CORRUPT error.

FossilOrigin-Name: 598d7358e7329f0de6e3defc217665909e46874258ac29592ee2fd53e6411cda
2019-01-05 21:09:37 +00:00
drh
ee751fab4c Raise an error if the argument to VACUUM INTO is an identifier.
FossilOrigin-Name: 6c6fb1c6ea452c70b56fd4ac796affebee21512adba0455ae81c291b715f544f
2019-01-02 14:34:46 +00:00
drh
0de6efe59e Merge enhancements and bug fixes from trunk.
FossilOrigin-Name: 9fb646f29c05bca5f677a2c7c4f45c36bfe0a0c6a88cb7968b4a0459bdd63bb2
2018-12-31 18:30:41 +00:00
drh
d1d158bf5a Additional small performance increase and size reduction to the
sqlite3VdbeMakeLabel() mechanism.

FossilOrigin-Name: 1bdee199a71e0a6c247b85e72de9e3a3099b7179c33288735721facef3b96459
2018-12-29 14:23:22 +00:00
drh
ec4ccdbcb1 A new implementation of sqlite3VdbeMakeLabel() is faster and makes fewer
memory allocations by deferring memory allocation until 
sqlite3VdbeResolveLabel() is called, at which point the code generator has
a better idea of how big the relocation table needs to be.
The sqlite3VdbeMakeLabel() routine now takes a Parse* parameter instead of
Vdbe*.

FossilOrigin-Name: 4a0929ac76d8aa5dd65eac3b83d6bbf41e505e01d175ca0fb2b19ba02d439415
2018-12-29 02:26:59 +00:00
drh
01e92df41e Merge performance enhancements from trunk.
FossilOrigin-Name: 0f1b9ff9e1e6f13e03045fcb7d0907227085054f9eb0b0b8471fb26b0094b13a
2018-12-28 21:32:35 +00:00
drh
b6991796b4 Move the nOpAlloc field from Parse into Vdbe to avoid an extra pointer
deference on the fast path in sqlite3VdbeAddOp3().

FossilOrigin-Name: 8f10efc29dea7b816b1ba401726c268950d6671d890f686911269082a241d8d9
2018-12-28 20:14:03 +00:00
drh
2c04131ca7 Experimental code that tries to put the computation of subqueries inside a
subroutine, and reuse that subroutine if the same subquery is evaluated more
than once.  Current code does not work for CHECK constraints.

FossilOrigin-Name: 6c44838adbe5dc482bc010e91a6dd7a0f777c989f443dd600740d2c783208e0d
2018-12-24 02:34:49 +00:00
drh
85bcdce270 Split the code generation for the RHS of IN operators and for SELECT and
EXISTS expressions into two separate subroutines, because there is now little
commonality between those to functions. This is intended to help make the
code easier to read and maintain.

FossilOrigin-Name: 2b6494b1509f0d0189f98aa34c990eee99c775ff57826e79b2c5b0a12b4c97ad
2018-12-23 21:27:29 +00:00
dan
1ea0443c2d Add new sqlite3_prepare_v3() flag SQLITE_PREPARE_NO_VTAB, for preparing
statements that are not allowed to use any virtual tables. Use this to prevent
circular references in triggers on virtual table shadow tables from causing
resource leaks.

FossilOrigin-Name: 25666e3d03950caf753295cdb55df162e07dbcf6840b05875c6e0b127c469ecb
2018-12-21 19:29:11 +00:00
drh
1a6c2b1d38 Further refinements to the sqlite3_normalized_sql() interface. TH3 now
gives 100% MC/DC on that interface.

FossilOrigin-Name: c96bf6cca220e363b099455ce35195ce7e89d374a52dc787f56e7b11e587bced
2018-12-10 20:01:40 +00:00
drh
643d855da9 Refactor the sqlite3_normalized_sql() implementation. This is a
work-in-progress. There are still issues.

FossilOrigin-Name: a4c890b0af9786295e6df05022009d8946550adb873535c610be805c2b7a4083
2018-12-10 16:00:57 +00:00
drh
2f6239ed4e Allow the INTO clause of VACUUM to be a text-valued expression.
FossilOrigin-Name: af172b53b46759f491f522356e14c5e2374d3f25ec70fbc1e100cadded8f9b22
2018-12-08 00:43:08 +00:00
drh
b0b7db91b8 Prototype implementation for the VACUUM INTO command.
FossilOrigin-Name: 036e3320a4af36c1311b25b2e504b0079c8b33df8ad7b7e5fddad07150e6f87d
2018-12-07 17:28:28 +00:00
drh
fc08a1aef8 Remove the unused pColHash field from the Table object.
FossilOrigin-Name: 3a2c047989facc3461c63a2f9eed412014c951035a80da47c52a70139fb552de
2018-12-06 02:01:17 +00:00
drh
253a6af532 The sqlite3_normalized_sql() interface should not be transforming quoted
identifier names into wildcards.  Fix this, and at the same time simplify
the code substantially.

FossilOrigin-Name: e8540377ec66fa5f9ae3c93bedb5c094057698199c37fc211f7ea95429e815e4
2018-12-05 23:45:46 +00:00
drh
19efd0db41 Simplifications to the sqlite3_normalized_sql() implementation.
FossilOrigin-Name: 94ea6379178e3ff6a0d1d5819ca4ac558bdadb1ca8a3637c797079db7dc0cd61
2018-12-05 17:48:57 +00:00
drh
707821ff72 Enhance the sqlite3_normalize_sql() interface so that it works even if the
prepared statement was not initially compiled using
SQLITE_PREPARE_NORMALIZED.  Enhance the ".trace" command in the CLI so that
it is able to access the full scope of functionality provided by 
sqlite3_trace_v2() and in particular so that it is able to show normalized
SQL output using the newly enhanced sqlite3_normalize_sql() interface.

FossilOrigin-Name: 7da617e97eb905cb009c47403786682b911e32a630f266e1c53ea72836fc88b5
2018-12-05 13:39:06 +00:00
drh
04c6747a80 Performance improvement in sqlite3_step() by creating a new mTrace flag
for the legacy xProfile pointer that is set by sqlite3_profile().

FossilOrigin-Name: e28584e8bc7b7405380064b60523fa6191f827f74075f6d117eb7732d752ba5e
2018-12-04 14:33:02 +00:00
drh
eea8eb6d04 Do not allow direct access to internal-use SQL functions such as
sqlite_rename_column() and sqlite3_rename_table() except when the
new SQLITE_TESTCTRL_INTERNAL_FUNCTIONS flag is set.

FossilOrigin-Name: 6e1330545e7b74fe5f1f20751a3425e2788441485fc07fcb7626e448c72027ce
2018-11-26 18:09:15 +00:00
drh
1ca9a8b9df Merge fixes from trunk.
FossilOrigin-Name: bf88efcec40036e0805940ff6371643dbc518442457d2bc18c711753607ae36c
2018-11-10 03:47:40 +00:00
drh
145d0a35d9 In the treeview.c module, break out the display of SrcList into a separate
subroutine, so that it can be invoked while debugging.

FossilOrigin-Name: 8c74065f0031274d9bc711d5d53c39aefcfb2b2679811105974a2c7c7a9e1dcb
2018-11-08 22:53:06 +00:00
drh
fc25721c9e Only allow shadow table to be written from within a recursive SQL call.
Omit the SQLITE_PREPARE_SHADOW flag.  Some tests are failing because the
tests depend on being able to write to shadow tables.

FossilOrigin-Name: d890c6582524677666e6f5b5817331dec332ade16b2f744cbb8a3c7dd9b63e21
2018-11-06 14:03:07 +00:00
drh
5a65470300 Add enforcement of read-only on shadow tables. This does not currently work
since some virtual tables are attempting to update shadow tables using
sqlite3_exec().

FossilOrigin-Name: f79b47c9859de597d5924870752dd7cab89c8f0608e5cceb2281f6ffb2e91930
2018-11-06 13:37:20 +00:00
drh
84c501bac1 Initial code to make shadow tables read-only to ordinary SQL. The now
xShadowName method is added to the sqlite3_module object and is used
to identify potential shadow tables.  The SQLITE_PREPARE_SHADOW argument
to sqlite3_prepare_v3() is defined.  It is designed to permit writing to
shadow tables, but is currently an unused placeholder.

FossilOrigin-Name: 31942b3dd3f66eb0d9977bf1cadc2f2d7be7967cce2b55784be0b939dfef1985
2018-11-05 23:01:45 +00:00
drh
0f1c2eb5f2 Correct the internal logic for SQLITE_DBCONFIG_DEFENSIVE.
FossilOrigin-Name: 76094345821246c887a31a234b339d03a78eddbb9fab33b06c3c20797c038349
2018-11-03 17:31:48 +00:00
drh
a296cda016 Add the SQLITE_DBCONFIG_DEFENSIVE flag.
FossilOrigin-Name: af3f29d49359af2291b1d9e06e0db76fd000fbd24b4ac84d2668a0d1322efd83
2018-11-03 16:09:59 +00:00
drh
7301e77402 Deploy the sqlite3Strlen30NN() function (argument guaranteed to be non-NULL) for
a small performance improvement.

FossilOrigin-Name: 4a6ad5190b62020d97a7de02c801544f20b7b98145ceff14af1f2834d3057f9c
2018-10-31 20:52:00 +00:00
drh
a60c63013e Add support for the SQLITE_PREPARE_NORMALIZED flag and the
sqlite3_normalized_sql() when compiling with SQLITE_ENABLE_NORMALIZE.
Also remove unnecessary whitespace from Makefiles.

FossilOrigin-Name: 790ea39a6585ea9f4dad9e132e1fb0447ac1558f728196580d2c3edee84823f7
2018-10-31 19:01:13 +00:00
drh
fd748c6460 Split the SQLITE_WriteSchema flag in two flags, WriteSchema and
SQLITE_NoSchemaError.  Set only WriteSchema on a VACUUM to avoid problems
when trying to vacuum a corrupt database.  With this change, the size
of the flags field on sqlite3 must grow from 32 to 64 bytes.

FossilOrigin-Name: 4f9878107a54356b7105fa1db7655ee239685d570436f6ad4d4221c9bd829b3d
2018-10-30 16:25:35 +00:00
mistachkin
8bee11a41e Add the sqlite3_normalized_sql() API.
FossilOrigin-Name: 592b66e8058dd03a056a036e2606247c9efdb06d15eebe9bcc455f7f55e30ae6
2018-10-29 17:53:23 +00:00
drh
09d00b2f4f Ensure that the OP_VColumn opcode does set sqlite3_vtab_nochange() unless
the OPFLAG_NOCHNG bit is set in P5.  Fix for ticket
[69d642332d25aa3b7315a6d385]

FossilOrigin-Name: 322ab1fc613f616e9f07dc94ef74a29572a21cc476d88e97b4ce865500a47b62
2018-09-27 20:20:01 +00:00