dan
db7d895e9d
Merge latest trunk changes into this branch.
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FossilOrigin-Name: 0b904517bd6c4c59082381577246d3d2351b4265fc9151438ee4c33cf16f2eb1
2019-03-13 17:31:20 +00:00
dan
b6f2deac3c
Avoid allocating excessive registers for the PARTITION BY expressions when processing window functions.
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FossilOrigin-Name: 180be266238e18c01f8bd52c75dd9aa3e26e553620258141cd95189a0ae59ddb
2019-03-13 17:20:27 +00:00
dan
b560a7194d
Remove rows from the ephemeral table used by window functions once they are no longer required.
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FossilOrigin-Name: 6ad553192051eaa0c6d929baacde2de07b93c6d09de861028bbce55a2c9bfdd3
2019-03-13 15:29:14 +00:00
dan
fcb02429ec
When deserializing a database (sqlite3_deserialize()), do not attempt to parse the schema before the data is loaded.
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FossilOrigin-Name: 4e1b005e8b397a22161a6b89cbd3f17bda70a6e0a86d8abdc61856edf2a74da4
2019-03-13 11:40:30 +00:00
drh
2a934d75d9
Detect zero-length free slots on btree pages and report that as corruption.
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FossilOrigin-Name: c4f0568fde1d4070e7522ec36c0958be7426076002a7fa2da12a46411ab2e92d
2019-03-13 10:29:16 +00:00
dan
d446165f7d
Minor optimization in sqlite3WindowCodeStep().
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2019-03-13 08:28:51 +00:00
dan
bb40727857
Allow real values to be used in PRECEDING and FOLLOWING expressions for RANGE window frames.
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FossilOrigin-Name: 25ff7091cb12c63b1864ce68a9151f8432af5804b5ae905a2175761ab4b9fdd8
2019-03-12 18:28:51 +00:00
dan
935d9d8260
Expand on header comment for sqlite3WindowCodeStep(). Further simplify the implementation of the same.
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2019-03-12 15:21:51 +00:00
dan
9e24439c2f
Fix a crash that could occur if the RHS of an IN expression is a correlated sub-query that refers to the outer query from within a window frame definition only.
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FossilOrigin-Name: 0524aaaf45681437c2dca3d31ff26a65bee7bd2074730277c29136635ee0be0f
2019-03-12 09:49:10 +00:00
dan
cc7a850f2e
Remove "cache mode" from the window frame code generator. Handle the same cases by editing the window frame specification itself.
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2019-03-11 19:50:54 +00:00
dan
a786e453a4
Simplify the windows frame code some. Add a comment explaining some of the VM code generated by sqlite3WindowCodeStep().
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FossilOrigin-Name: 6bd1a07949ff3d394056bfcc813444401ef00806e3f0e0423ff6962541e84bdb
2019-03-11 18:17:04 +00:00
dan
71fddaf195
Fix problems with "RANGE ... ORDER BY <expr> DESC" window frames.
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FossilOrigin-Name: e7bced731aa071c95bc398cdecd53c939841bf0c52fbcd06e47ba68f8c5cc35a
2019-03-11 11:12:34 +00:00
dan
72b9fdcf20
Add support for RANGE window frames. Some cases still do not work.
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2019-03-09 20:49:17 +00:00
dan
f7b846e4ed
Merge latest trunk changes into this branch.
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FossilOrigin-Name: 53ea550ce759ae4683bcf0ae3af655bfe04f85db70f74edee6bcab56d83bb041
2019-03-09 07:38:16 +00:00
dan
6c75b39614
Finish consolidation of window frame code. Add untested support for GROUPS frames.
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2019-03-08 20:02:52 +00:00
drh
4b986b2a47
Patch makes balance_nonroot() slightly smaller and faster and more robust
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against corrupt databases.
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2019-03-08 14:02:11 +00:00
drh
9a518843f5
Detect an attempt to drop a btree that is not within the bounds of the
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database file and abort early with an SQLITE_CORRUPT error, to avoid
problems later on in the process.
FossilOrigin-Name: 235a9698f5e9b3c21dc51c9c5042becfb82fc1762a7519a46b9f9fdafe9b0f13
2019-03-08 01:52:30 +00:00
dan
54975cdff9
Fix other "ROWS BETWEEN" cases on this branch.
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FossilOrigin-Name: a5f68f66472610b5beb4fe28669fbbfe83a32742be73cecad9b2ae28f8a17b30
2019-03-07 20:47:46 +00:00
dan
c813750b7b
Modify new window functions function so that cursors are stepped immediately after each operation, instead of immediately before.
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FossilOrigin-Name: 093d2b25f1b656bba57d665aac68109436861b157a5769432b612176dae3f6eb
2019-03-07 19:26:17 +00:00
dan
00267b8a7b
Simplify the window function code generator some more.
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FossilOrigin-Name: 45cbd3b4498cea8856f189e9d0a192556d4f15212055b8328a1beca6083fc47a
2019-03-06 21:04:11 +00:00
dan
b33487b0b6
Improvements to the way built-in window functions are handled.
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2019-03-06 17:12:32 +00:00
drh
39c5c4ae06
Add the sqlite3_stmt_isexplain() interface.
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FossilOrigin-Name: ee642d3e2775ba4c73627ac71d0abf7a0f7a4ab3151d88e0076e9992f4814983
2019-03-06 14:53:27 +00:00
drh
aff0fd483c
Add an "|| CORRUPT_DB" term to an assert() that might be false if the database
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is corrupt. Also add a branch to have sqlite3PagerMovepage() return
SQLITE_CORRUPT in that case.
FossilOrigin-Name: b0d5cf40bba34e459caa7480bc84a1d75496c2ab52029f4bb0a31f2d9369a8ee
2019-03-06 14:08:41 +00:00
dan
b25a214dec
Extend windowCodeStep() to handle any ROWS PRECEDING/FOLLOWING frame specification.
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FossilOrigin-Name: af0ea1363548461b2aad8fd54ee3f2f616111dcae2d6480f5294da44c87a0a5d
2019-03-05 19:29:36 +00:00
drh
0a31dc201e
If the initial byte of a record is a large value, then always used the
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generalized record comparison routine sqlite3VdbeRecordCompare() rather than
one of the specialized versions that are optimized for shorter records.
FossilOrigin-Name: c1ac00706bae45fe9735061ada025880606cdfb8ecfdaa36b4e2d04275820861
2019-03-05 14:39:00 +00:00
dan
4e72e62f3b
Merge trunk changes into this branch.
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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.
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FossilOrigin-Name: e7a91f12282afb5d5d7d78397a11d18e0268ee0c931d85e21fce00d13929494e
2019-03-04 21:07:11 +00:00
dan
4474e869fe
Fix a problem preventing compilation with SQLITE_OMIT_UTF16.
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FossilOrigin-Name: 906d1fd8650874236e0bf5734d5347dcc45ec036164a56570fec37da4ffeaf8f
2019-03-04 07:15:57 +00:00
drh
e22976c535
Fix the SQLITE_DIRECT_OVERFLOW_READ compile-time option so that it works
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with SQLITE_HAS_CODEC.
FossilOrigin-Name: fd085e9260bec18f968704abb2dd324d954baa121d13b67c3f5b801e9e3834aa
2019-03-02 15:25:24 +00:00
drh
f10c535fa5
The fts3_tokenizer() function returns NULL if the
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SQLITE_DBCONFIG_ENABLE_FTS_TOKENIZER setting is disabled, which is is
by default.
FossilOrigin-Name: f5732f4caf7a37a6445c61ae0d0ac14cc9deb897376e73aa36a1ead025b92c69
2019-03-01 21:33:29 +00:00
drh
10cc16c954
Fix a minor comment typo. No code changes.
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2019-03-01 21:12:40 +00:00
drh
b531aa8fd9
In a query that uses a partial index, the expression that is the WHERE clause
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of the partial index must always be true. Use this fact to avoid evaluating
identical terms in the WHERE clause of the query.
FossilOrigin-Name: 9b2879629c34fc0a8e99d94648903eb93aabbc7a3682c80cb7382f9a9ca5ffb7
2019-03-01 18:07:05 +00:00
drh
9cb0264041
Add the ".parameter" command to the CLI.
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2019-02-28 20:10:52 +00:00
drh
c06ede105d
Add the new "bind_fallback" method to the "sqlite3" object in the TCL
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interface.
FossilOrigin-Name: c7f70b6d96338dba201e005104e7f7148c1a8cd767ab05e35b44617c4c797bc5
2019-02-28 17:29:19 +00:00
drh
45616c7f75
Add an "|| CORRUPT_DB" term to an assert() statement in the btree defragmenter.
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FossilOrigin-Name: 6bfd8655f006e031c0d4c988356c4b9206efa6bfdb034fde8ffa3361521a4844
2019-02-28 13:21:36 +00:00
drh
8e0f794d17
Enable the LIKE optimization when the ESCAPE keyword is present and the
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PRAGMA case_sensitive_like pragma is ON.
FossilOrigin-Name: 6ae4b8c525f446ddb0e0bdd5e4e01e06e2ab975e3effa42fce6a1102b3a39830
2019-02-27 23:05:14 +00:00
dan
89d249364e
Add the "-returntype" option to the "db function" Tcl method.
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FossilOrigin-Name: 789a492b68c353e2b763d67d399722b7ab61bfe09b472466df2821f65cab1be9
2019-02-27 16:38:19 +00:00
drh
5cb1ffc1bd
Allocate a few extra bytes for the pager temp page as an overrun buffer while
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processing corrupt database files.
FossilOrigin-Name: e7aca0714bc475e04b16e9db78722ce025d2a1382f80cfc0a49cff2af904eae5
2019-02-26 17:49:07 +00:00
drh
eaac9996ed
Use unsigned integers to count the number of pages in a freelist during
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an integrity_check, to avoid any possibility of a signed integer overflow.
FossilOrigin-Name: 05b87e0755638d31f6d8918f8758362f8c3981661449b5171180a8498f66bd9d
2019-02-26 16:17:06 +00:00
drh
2b454e0335
Fix a harmless compiler warning that only comes up during debug builds.
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2019-02-26 16:11:46 +00:00
drh
8b738d0865
Enhance the command-line shell to accept bound parameters, using the
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TEMP table named "$Parameters" to look up the values for bound parameters.
FossilOrigin-Name: 7c941ce5bcc872ec92cbe0e409fd773f44a5ab1f814e689ad57f756b911e2b96
2019-02-25 18:43:54 +00:00
drh
7edcb11ca7
Fix a typo in the documentation for sqlite3_total_changes().
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FossilOrigin-Name: 8474c1560e0c3a28c6a7ed360202a8e7caae3c8259f60bbfa6d2948ab7876f51
2019-02-25 14:16:19 +00:00
drh
4bdd26dfab
Remove a testcase() macro which is now unreachable due to the contraction of
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the use of IN_INDEX_ROWID.
FossilOrigin-Name: 90c5a17cd526b256753f876e575f3e731d5e8b9dd6e196cf8d8f7306e099b91c
2019-02-23 00:08:09 +00:00
drh
50ef6716d2
Make all ephemeral tables built to hold the RHS of an IN operator be
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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.
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2019-02-22 23:29:56 +00:00
drh
bc0a55cf0b
Check-in [fa792714ae62fa980] is not a valid fix for ticket
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[df46dfb631f75694], as the new test case in this check-in demonstrates.
The fix here causes test cases for the [df46dfb631f75694] bug to fail
again, so this check-in is on a branch. A new fix is needed for
[df46dfb631f75694].
FossilOrigin-Name: 0d456456da6e25b20d9d27ca95f1013082bca52ee74ee9bf91732a9fa843ea45
2019-02-22 21:33:56 +00:00
dan
f030b37682
Internally, remove all references to a Window object that belongs to an expression in an ORDER BY clause if that expression is converted to an alias of a result-set expression. Fix for [4feb3159c6].
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2019-02-22 19:24:16 +00:00
drh
480c572f2d
In sqlite3NestedParse() be sure to detect all SQLITE_NOMEM and SQLITE_TOOBIG
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errors and to distinguish between them.
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2019-02-22 16:18:12 +00:00
drh
255a81f10a
Modify sqlite3_str_finish() and sqlite3VMPrintf() so that they always
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return NULL on any OOM or SQLITE_LIMIT_LENGTH error.
FossilOrigin-Name: e7144ffd21294d7aebbfa6aa5a262797a6d16de11193f1bf6b75f5f27b04c940
2019-02-22 15:42:10 +00:00
drh
dbdddc99d8
Detect oversized strings in the OP_String opcode even if the P4 argument
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is originally UTF8 and has to be converted to UTF16 to match the database
file and that conversion causes the string to become shorter and cross
below SQLITE_LIMIT_LENGTH threshold. This might fix an OSSFuzz problem
that we have been so far unable to reproduce.
FossilOrigin-Name: c13d563925db12bc2c91ff9432050261e5bd39d960e2739777a66bf804df2e31
2019-02-21 16:41:34 +00:00
drh
6a1bfc9a6d
Changes to the unix VFS that allegedly enable it to build of Fuchsia.
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We have no way of testing this.
FossilOrigin-Name: be21a6416d47ff7db995006a0422b745044d9b8bb5bad3c53342aa6e2e524771
2019-02-20 19:20:16 +00:00