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using-materialize
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Author SHA1 Message Date
drh
aee35d7509 Trying to get the new AS MATERIALIZE syntax of CTEs to work. There are 
still performance and memory management issues.  This is a WIP check-in.

FossilOrigin-Name: bf0fd9b23a77a8fc1be5f8f8f9f7dce62b924d2f4eecaf13f0b21cc58bfd3a61
 2021-02-16 16:32:07 +00:00
drh
68097b4e93 Change the syntax from "GENERATED AS" to "AS MATERIALIZED" so as to match 
the syntax of PostgreSQL 12+.

FossilOrigin-Name: 78dcddd9697d95629c18131ab0842aa4d08bc3c7451cd0e7a8d83e4dde277bda
 2021-02-16 00:48:51 +00:00
drh
1b6cc73096 Merge the LIKE operator fix from trunk. 
FossilOrigin-Name: 8c8618780a2cb80c0c1f244fa8555ce36501ad7e435a2cfee1030bbdc8d644db
 2021-02-15 17:51:32 +00:00
drh
33941691a5 Fix an issue with the LIKE operator when it includes the "ESCAPE '_'" clause. 
Ticket [c0aeea67d58ae0fd].

FossilOrigin-Name: 27d4117980d125975b5e70eeea58a6ab07bcf066e71b5fcb81b822e05afdbab0
 2021-02-15 17:02:01 +00:00
drh
478583bbd6 Merge minor fixes from trunk. 
FossilOrigin-Name: d876b287e1d1fdc1db083fb9786889fb82117ec77defdaa078858e1092068166
 2021-02-15 14:55:04 +00:00
dan
f2b32e8915 Add tests for sqlite3_column_count(). 
FossilOrigin-Name: 7cc65ae57183b3c16f1102fca5603a36acda432e5d45e22a2996e5ebe069fc6a
 2021-02-15 14:32:05 +00:00
drh
351ae772a3 Ensure that the ALTER TABLE statements return 0 for 
sqlite3_column_count().

FossilOrigin-Name: 29c1932a47cd46c2585ebbf937c03544a8a355014776129662789e15db9ed4de
 2021-02-15 13:17:19 +00:00
dan
863fd4905c Fix an error in the test case fix in [ecd71203]. 
FossilOrigin-Name: 5411bfa41ea9a492ca1f567327d8e0a1b3db047292fec1753bfef8a157cf8c1d
 2021-02-15 11:14:53 +00:00
drh
bd4dfa9071 If the GENERATED keyword occurs before the AS keyword in a common table 
expression (CTE) definition, then that CTE becomes an "optimization barrier".
For now, that means the CTE is always materialized.  It also means that
query flattener or pushdown optimizations that cross the CTE boundary are
omitted.

FossilOrigin-Name: 186ec18b24d16c5d4d7a5b5e98c7504892950a1018774cb7bb214fc011ec09f4
 2021-02-13 23:46:26 +00:00
drh
329eaaf0b3 Fix incorrect test name labels in the select1.test script. 
FossilOrigin-Name: 179c79ea0deb0f5adaa8d369cfcad06d959a9cc18a8a41e01ef013b2d90acd61
 2021-02-13 18:14:15 +00:00
drh
8794c68a35 Avoid manifesting a CTE (or other view) multiple times when it is possible to 
reuse the first manifestation.

FossilOrigin-Name: 9692f510803c9b9725abb687d7c10fbc0d5ed784479ec6f3fcc55925a87fe16d
 2021-02-13 16:39:24 +00:00
dan
e8f1490f55 Fix a problem in the unreleased union-all flattening code. 
FossilOrigin-Name: e4f8a79fd8b3be9bf8add5f5e1c66bc2fe78da4e50ea500ab0b8370d30e31ba5
 2021-02-13 14:26:25 +00:00
dan
8b7e93adbc Fix a test case to account for the fact that different versions of OpenBSD behave differently when a program tries to read() from a file-descriptor open on a directory. 
FossilOrigin-Name: ecd712032f56a20d7df2bcf89b0d3b8d91dc72c552e27f0a4b23980bd49747b0
 2021-02-12 21:22:01 +00:00
drh
879746ca63 Parsing of DML statements in a WITH clause. But at this point, it just 
generates an error about "not yet supported".

FossilOrigin-Name: 964ff68d8fa4d72b1b4d510f1ec62a9674b75d4ebae4ba254bc2f99432857628
 2021-02-12 21:07:58 +00:00
dan
23ed8109b6 Ensure RBU tests are run as part of release testing. 
FossilOrigin-Name: a18dc08bafefd849e640086b18c41e06361d2e09d7dd2e9af4a394dc543e598b
 2021-02-12 11:37:13 +00:00
dan
40803caa1d Fix a longstanding problem causing an RBU vacuum to omit releasing some locks before finishing. 
FossilOrigin-Name: 66c07a07b21e46529780eec3c82a84c494d586f8b7ed80b78d358e23b80458c7
 2021-02-10 20:00:40 +00:00
dan
b9edded0fd Remove an assert() added by the previous commit that is sometimes false. 
FossilOrigin-Name: fb36ac4dc60ccc6c5fba3f23e13fcab985f27ebef0527c929806cda5f9d3660c
 2021-02-10 19:49:35 +00:00
dan
513c9a1ff3 Fix a longstanding problem causing an RBU vacuum to omit releasing some locks before finishing. 
FossilOrigin-Name: cb5bdf82fe0f90922dc34202be9d0aa34d899afff4200456623765da2877ca41
 2021-02-10 19:40:47 +00:00
dan
8737d46ea1 In RBU, avoid passing VFS xShmLock calls through to the underlying VFS in cases where xShmMap calls may not be. This fixes a bad interaction with ZipVFS. 
FossilOrigin-Name: bd1e9e0a4c0e07901ef59fe3b7e6f7b9cc66ccfcd5192f576e1620820891de99
 2021-02-10 17:31:50 +00:00
drh
82ab4f6b1a Correctly detect correlated subqueries when resolving names in RETURNING 
clauses.

FossilOrigin-Name: b43cfa04922a401442b9d1708e3e4a88d3cfa2c591f9a6b253d99ba83f4b280a
 2021-02-08 15:56:01 +00:00
drh
d510197276 Improved name resolution for references to a table begin modified from 
within a subquery in the RETURNING clause.

FossilOrigin-Name: 799d205bfa7945ee4a92dfec5fbf90a00b9a535e3171aab2ec46404f7efb0f78
 2021-02-08 13:41:17 +00:00
drh
e1c9a4ebf9 Do not allow RETURNING in the DML statements of a trigger. 
FossilOrigin-Name: 7a8fe6463a9728bc4e34465688a059afb74f3c373cde8fdf570d5d148fdde04d
 2021-02-07 23:28:20 +00:00
drh
8729642112 Fix harmless compiler warnings. 
FossilOrigin-Name: 5f8bf99579e6663fc701cdc94f685584a86398c4687e25e7e241de755398f17d
 2021-02-07 12:59:43 +00:00
drh
5f323787bd Remove an ALWAYS() and NEVER() in the authorizer that become reachable 
as of [078dbff04a95a001].  Test case for coverage in TH3.

FossilOrigin-Name: b469327e2949352325d3db815bd4782f9734239c378f08afd2f00ffa54bef924
 2021-02-06 14:56:30 +00:00
drh
8873aea390 Fix the OSSFuzz-discovered shift problem from two days ago. This patch was 
omitted from [078dbff04a95a001] apparently because I made the edit to
"sqlite3.c" rather than "resolve.c" where it belongs.

FossilOrigin-Name: 864772ffec4e91d8d73f9b97e6e1d7bd4e0537de19d11d30aed7eedd5b7d394a
 2021-02-06 14:37:36 +00:00
drh
29f6a365cc Remove unreachable code. Fix a shift UB problem introduced yesterday 
and discovered by OSSFuzz.

FossilOrigin-Name: 078dbff04a95a001bbd8690ab08038fbb5506899df8290991b53fd1122a4c30c
 2021-02-05 17:34:47 +00:00
drh
70bd2124ed Change the RETURNING algorithm so that outputs accumulate in an ephemeral 
table until all modifications have been completed, and only then do results
start being returned.  This should help prevent problems with interleaved
sqlite3_step() calls on two separate DML statements.  It also seems to be
closer to how PostgreSQL works, which might prevent compatibility problems.

FossilOrigin-Name: c4615eb28c3dd2d473daf104f32e60d02799f3158d9d275a899c39129cc71401
 2021-02-04 23:20:13 +00:00
drh
7dec804d42 Remove dead code. Fix RETURNING for INSERT into a virtual table. 
FossilOrigin-Name: dbfa38699c87ab4bf390666e411dda8d375c7b53b9b4fb131adacbf575867a72
 2021-02-04 22:59:19 +00:00
drh
e1db9343d5 Fix an issue with RETURNING from UPSERT. 
FossilOrigin-Name: 757b74ba0fd64634a365bd73955181191767ad8816a33a362e32ece250299a51
 2021-02-04 21:17:12 +00:00
drh
552562c48f Snapshot. New design appears to work on a simple test case. 
FossilOrigin-Name: 8a65fbeecf3597e30853c5f0ccd9b8b46c508854fa521e58e0db279deebca7d4
 2021-02-04 20:52:20 +00:00
drh
381bdacc8f Preliminary changes for a new implementation of RETURNING that captures all 
results in a buffer and plays them all back after the DML statement
completes.  This avoids problems with interleaved DML statements.
This particular check-in is a non-functional work in progress.

FossilOrigin-Name: 04b77d63216ce11b4e797946953bcde504fc005807c7a5ac757fbf47d78698dc
 2021-02-04 17:29:04 +00:00
drh
8ab79d6135 Add NEVER() to a branch that check-in [5d54d9fd40638138] apparently made 
unreachable.

FossilOrigin-Name: 5c8e6296aa9f69a092364524b716ba894f113f7f1e6024b9a2eaa01c239e65c1
 2021-02-04 13:52:34 +00:00
drh
02c4aa39e7 Performance optimization in sqlite3FinishCoding(). 
FossilOrigin-Name: 0f34f241d37cc4f31dc657a6fc33815fa5e24298487121cb27c29118524b8ee7
 2021-02-04 13:44:42 +00:00
mistachkin
8c333cfc0d Corrections to the 'filepath_normalize' test suite helper procedure. 
FossilOrigin-Name: 32f4d04470bf953b08eea285543f16e03de13d5448c1ebccbba1578ca3b5363e
 2021-02-03 19:38:40 +00:00
drh
17b74817c0 Change the name of Vdbe.magic to Vdbe.iVdbeMagic to disambiguate with 
sqlite3.magic.

FossilOrigin-Name: 6b29e549bb34933bfd0758e31085e65dcc0f75446c478fc775d96cf01c22cf43
 2021-02-03 18:32:25 +00:00
dan
7937f63220 Avoid doing any foreign-key constraint related processing for an UPDATE statement that does not modify any columns that are part of FK constraints, even if the table has a self-referencing FK. 
FossilOrigin-Name: 7f3b036e730153ac22933b03a52d4ec3978c9ecab1399d8cc79fe533893321e3
 2021-02-03 14:20:56 +00:00
drh
c5eb176a09 Fix a harmless compiler warning. 
FossilOrigin-Name: 1eb69c64ed4a11601698000573c507684bc4b0366336ba0748ebd661644d0902
 2021-02-03 13:20:12 +00:00
drh
cd39cda00c Add support for the RETURNING clause following PostgreSQL syntax. 
FossilOrigin-Name: 416c898bfb8ff9639ffbaefcfb47fce3782763af1fc67969fa91c5f01a336676
 2021-02-03 13:08:09 +00:00
drh
78197e0f8b Fix an assert() that might be off-by-one in the case of a prior 
errors in the parse.

FossilOrigin-Name: 06b15b17be38c804dd2641d8616a2a7bd396d2eb9901a0fbf94edd8bd508cf9c
 2021-02-03 12:35:51 +00:00
drh
2aa41c82da Modify the SQLITE_DBCONFIG_ENABLE_TRIGGER setting so that it only disables 
main-schema triggers and allows TEMP trigger to continue operating.  This is
safe, since only the application (not an attacker) can add TEMP triggers.
It will also all us to disengage SQLITE_DBCONFIG_ENABLE_TRIGGER on Fossil
databases since Fossil has no main-schema triggers but does use TEMP triggers.

FossilOrigin-Name: a10c5a2503ff2998f6ee40f721aab8c9579052e535dc141bd57d10551eaea387
 2021-02-03 00:55:34 +00:00
drh
47600083f1 Load enhancements from trunk into the returning branch. 
FossilOrigin-Name: b84c7f60c2e1e7debf9f50622087f87d60c6870061d61e14e59cc1ba0775ee92
 2021-02-03 00:05:57 +00:00
drh
cb83dc9e95 Do not allow aggregates in a RETURNING clause. Fix a memory leak that 
occurs when window functions are used in a RETURNING clause.

FossilOrigin-Name: 2e9bd94b9ad37c7e4123b7324f2fe42d3609a65af449eb8a0064057647709a73
 2021-02-02 20:46:11 +00:00
dan
e0d2096afa Modify the sessions extension to use more efficient SQL when applying a changeset or patchset. 
FossilOrigin-Name: e4ccfac09b6fe8cc3aec29d10f4e4c83097964f29882343db52ed91f6f0dde1c
 2021-02-02 20:41:13 +00:00
drh
709dd13927 Report an error if RETURNING is used for DELETE or UPDATE of a virtual table. 
FossilOrigin-Name: bd5dee8425327fde0429043ce325b910f1b7951988d9a448a8eeeb713a46bc81
 2021-02-02 12:01:22 +00:00
drh
c9be863098 Allow the RETURNING trigger to exist for virtual tables. 
FossilOrigin-Name: 2f244ab4a2ba2bdb608cf44ef02e00738ad58c10a76d9e4222dc843a17103d92
 2021-02-02 00:16:15 +00:00
drh
d33d3a2ba7 Add a few test cases for RETURNING together with UPDATE/DELETE LIMIT. 
FossilOrigin-Name: 7611c77d6baa84086ff18cbd045127fd682c6d5c434af5404e34fbe631fedfe1
 2021-02-01 21:26:09 +00:00
drh
9e673ace5b Improved corrupt database detection in balance_nonroot(). 
FossilOrigin-Name: 5d54d9fd406381383afdf10612bfd590afc4142215d9bca09e227e3aa5baa102
 2021-02-01 12:39:50 +00:00
drh
7baf3d411b Modify RETURNING so that it does not return changes implemented by 
cascading foreign keys or by triggers.

FossilOrigin-Name: 6e62470a737cbde7f3fdcd027b98eb0b3dd11d063c63501d3c18448e93f5959f
 2021-02-01 01:57:55 +00:00
drh
9407b6ef29 Mark an unreachable branch as ALWAYS(). 
FossilOrigin-Name: cb8b797a64f65fca01c5faaeb30cbe4a53b56b81e696d1b62a90362d7ef8f924
 2021-01-31 16:45:10 +00:00
drh
18e5607211 New opcode OP_ChngCntRow used to output the result of PRAGMA change_count. 
Only this new opcode, and not OP_ResultRow, checks for foreign key errors.
Faster performance, and now also works with RETURNING.

FossilOrigin-Name: 154fc2b15465c7c92a1af0a93851421aec42a81bab54840a9701f2c78068e14e
 2021-01-31 15:50:36 +00:00