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Commit Graph

14444 Commits

Author SHA1 Message Date
dan
2e60568fef Fix problems with the nth_value() function. 
FossilOrigin-Name: 63002b9a090397668b94fe341a035c42f84e4837af85395bce4cd1c2777c5209
 2018-06-07 15:54:26 +00:00
drh
64c1f77a8e Merge the ".stat/.eqp" CLI fix from trunk. 
FossilOrigin-Name: a91cad3381bb843d6f58975251bf99f0fa1a1398fae53d97a98a6c8ee65e718e
 2018-06-07 15:28:40 +00:00
drh
3c49eaf4be Avoid using a prepared statement for ".stats on" after it has been closed 
by the ".eqp full" logic.  Fix for ticket [7be932dfa60a8a6b3b26bcf76].

FossilOrigin-Name: bb87c054b1b76959e46258ac66b24027f468b390a4148ac67f208a1fbeda4060
 2018-06-07 15:23:43 +00:00
drh
f7b0a5f3c3 Add the WHERE_IN_EARLYOUT flag and use it to clarify the logic of this 
optimization.

FossilOrigin-Name: 522f1eacc20f11002cad58232a7c2610f369568653510e54f46088f579f778dc
 2018-06-07 14:59:22 +00:00
drh
bd573c459b Merge recent trunk enhancements. 
FossilOrigin-Name: e9d7bf4f7b9d6f8dabc4c95d43ebf12f2149bed1c5e750048b1b684128073c38
 2018-06-07 14:32:16 +00:00
drh
df12595c09 Change a comma into a logically equivalent but semantically clearer semicolon. 
FossilOrigin-Name: 71f97f0f82b3abfb07feb78d64a182fc50ff396e85d6f5aac479dbf58ba4d00a
 2018-06-06 23:31:26 +00:00
drh
6eb3480bd7 More space and performance enhancements to sqlite3VdbeRecordCompare(). 
FossilOrigin-Name: 83a60ff056a63f18479030e9dfb10926fbb0d906d51f2cf88233098e15c75534
 2018-06-06 20:55:10 +00:00
dan
ec891fd40c Add implementation of nth_value() window function. 
FossilOrigin-Name: eb1fb420ac70857e7ca4cbad78be15a27bee8f915ba2da080c7efa1879c06c31
 2018-06-06 20:51:02 +00:00
drh
d882108a01 Small performance optimization in sqlite3VdbeRecordCompareWithSkip() for 
the common case where the comparison is equal.

FossilOrigin-Name: 1e616e256a4fb1b64271706fdfa77dc5790eba0a2f0e619544e169bc61d7c805
 2018-06-06 20:29:19 +00:00
drh
4011c44322 Rearrange the order of some checks in the integrity_check pragma for a very 
slight performance gain.

FossilOrigin-Name: 4b853f020570bf4af1b14e03f35764c7d7a03a40af58efc783e06f2b883cef78
 2018-06-06 19:48:19 +00:00
drh
685a50ad74 Fix the sqlite3BeginTrans() calls within the snapshot extension. 
FossilOrigin-Name: 1fef7ad25b6a8e59163ac57f5cf0412bfc5b0e9446fd782f5f0a7d7ee11741fc
 2018-06-06 18:50:50 +00:00
drh
397776a823 Another minor optimization to OP_Transaction. 
FossilOrigin-Name: d80077aee3904e5d93164b342cae14d813de8e84e567462412751e06c7487d41
 2018-06-06 17:45:51 +00:00
drh
bb2d9b1bf1 Change sqlite3BtreeBeginTrans() to return the BTREE_SCHEMA_COOKIE, for a 
small speed improvement when starting new transactions.

FossilOrigin-Name: a10662aa915ae2b5a78b3e10920350d32255b2d6b1a8aac0aba1ad173b07ed2b
 2018-06-06 16:28:40 +00:00
drh
0cfd46a1ad Fix the ".archive" command in the CLI (and the corresponding -A command-line 
option) so that it silently ignores filenames that contain "../" in their
names.  This prevents the "Zip Slip" attack.

FossilOrigin-Name: 27291f2d7fd4dadf2ee9b9a7d1373158cadfbaf83c3654b00d7030dc921770c6
 2018-06-06 01:18:01 +00:00
drh
8c2b6d784b Add the OP_IfNoHope and OP_SeekHit opcodes used to reduce the number of 
unnecessary sqlite3BtreeMovetoUnpacked() calls when checking for an early
exit on IN-operator loops.  Futher optimizations are likely possible here.

FossilOrigin-Name: 6bf251af4347165a470d39457d61ab6d2a06c206db8f30bd8be5dbb388ae8a5b
 2018-06-05 20:45:20 +00:00
dan
280c894b74 Calculate non-aggregate expressions in the SELECT list of an aggregate query 
that does not use min() or max() once per group, instead of once per row
visited.

FossilOrigin-Name: dce2dfbe1590deb3ef5661230ae2d232bd492441195defbf698ac56f9629211c
 2018-06-05 20:04:28 +00:00
dan
1c5ed624a0 Add implementation of last_value() window function. 
FossilOrigin-Name: 2493ce1a402888f6a8f25e03052c25a4e9bca740639e98cb614f5e5160ac25d3
 2018-06-05 16:16:17 +00:00
drh
86d0ea7558 Use an OP_NotFound opcode to cancel futile IN operators early. The current 
implementation is suboptimal because it always runs teh OP_NotFound.  This
still needs to be enhanced to only do the OP_NotFound if no results have been
seen on the current loop.

FossilOrigin-Name: 87a9fc504f9a78caf7a7949cc7ada0a19d61bfab51bb49a00a1607194c116212
 2018-06-05 15:16:25 +00:00
drh
995bbbf993 Merge trunk changes. 
FossilOrigin-Name: 047295c588e9fdf2ffa4e69e166f177fd193309531dc6a9ac755fb7a763adb72
 2018-06-05 13:54:06 +00:00
drh
8e9deb61af Update and correct the documentation on the OP_OpenRead, OP_OpenWrite, 
and OP_ReopenIdx opcodes.  No code changes other than the addition of
an assert().

FossilOrigin-Name: 8a0b730d0ea640d5cf75febe39b2162411a12eb5275765a85882158b5a085681
 2018-06-05 13:43:02 +00:00
dan
6bc5c9e788 Add implementation of window function ntile(). 
FossilOrigin-Name: 3f093f608c6cc193aac77e7eafa8006c27a7776682d9d7b6e743710dff41ae42
 2018-06-04 18:55:11 +00:00
drh
6b27f5fab7 Merge recent changes from trunk. 
FossilOrigin-Name: f8df2a8e28acdd9573a9ffc18027553f35f769a989f5dfbf81f31b0656ee6065
 2018-06-04 13:27:39 +00:00
dan
2b1287cf44 Merge latest trunk changes into this branch. 
FossilOrigin-Name: 83d6416a868fac81a78c9507185a48d00920e4322276245e285946f760915f4a
 2018-06-04 08:28:18 +00:00
dan
f1abe3680e Add support for window function cume_dist(). Improve tests for percent_rank(). 
FossilOrigin-Name: 76543f7dd3a2310f6e81a1bae17db9bb5d2cf10c1b87ed3f8394b3e75576078b
 2018-06-04 08:22:09 +00:00
dan
dfa552f45b Add support for window functions row_number(), rank(), dense_rank() and 
percent_rank().

FossilOrigin-Name: 91c1cb7a217d0991a08256269f6c55ef185c25362d57b36bfbd2d85dab38e58f
 2018-06-02 21:04:28 +00:00
drh
eb7df46e32 Avoid using a misaligned pointer. 
FossilOrigin-Name: 1ecb3aa13de5c8dc611b814ff34010de0bd90aae73d88aa37a59c4627be4cc2d
 2018-06-02 19:14:58 +00:00
drh
5ba5f5b5d2 Work around a sanitizer warning about a pointer being only 4-byte aligned 
instead of 8-byte aligned.

FossilOrigin-Name: 1b807b51cdf455b4f54216b73fd22bbc90f94e24222401e045f88cfd27f487e3
 2018-06-02 16:32:04 +00:00
drh
789df14b11 Proposed fix for the use of posix_fallocate() so that it handles EINVAL 
returns correctly.

FossilOrigin-Name: ab3a5539db82814cafb832cdaebd1e14566139306453ef9cdba6b244a994fe0b
 2018-06-02 14:37:39 +00:00
drh
4344dbd3ab Ensure that sqlite3AuthRead() is only call for TK_COLUMN and TK_TRIGGER 
expression nodes.  This fixes a harmless assert() identified by OSSFuzz.
Move the assert() into a position where it is tested even if the authorizer
is disabled.

FossilOrigin-Name: d0c3beef7cdc680c0768ddd18f766a4ca7be822c1eb1776b2f73b7433d9962dc
 2018-06-02 11:31:15 +00:00
dan
f690b57206 Allow an entire partition to be cached in a temp table for all types of window 
frames. This is required by nth_value() and others.

FossilOrigin-Name: b5b18f661341d8d450147e62d321791c706f16c0550bcd98eec3e0220c039189
 2018-06-01 21:00:08 +00:00
dan
0f86c9d8fa Fix a bug in the SQLITE_ENABLE_SORTER_REFERENCES code causing an out-of-bounds 
array reference.

FossilOrigin-Name: 8cadaf587dc96370f9c8a1dccc366b93021e8cfe4526da9368a088828fd14faf
 2018-06-01 13:30:45 +00:00
drh
416a801600 More documentation typo fixes. No code changes. 
FossilOrigin-Name: 66c24513c2f6de98bd888c3e4c07bbb39fabf30ea9dd01eb255460054055347d
 2018-05-31 19:14:52 +00:00
drh
8cdafc384e Fix a harmless typo in a comment used to generate documentation. 
FossilOrigin-Name: 5a2a88cb01ef4b299f9a5b2963f392a3bae90e8a7f84b190e67f86090f891e23
 2018-05-31 19:00:20 +00:00
dan
c9a8668ac7 Allow min() and max() to be used as window functions. 
FossilOrigin-Name: c16125a884a9131b707ac20033968c4c3177ea79625a15efb64d754568c6c7a0
 2018-05-30 20:44:58 +00:00
drh
8e02a180b9 Fix a typo in an error message in the CLI. 
FossilOrigin-Name: 808839808141493c1e5122f40b2cdff725be0cd1212e03d609345dbff7af03e4
 2018-05-30 07:24:41 +00:00
drh
6a8b94e266 Fix the parser so that it builds with -DSQLITE_OMIT_CTE. 
FossilOrigin-Name: 86ee267ee86f5264774a9f215b1158aeaa2d605e77c205731b5ee3945d7de4c2
 2018-05-30 01:14:20 +00:00
drh
3e62ddbf13 Fix a harmless compiler warning. 
FossilOrigin-Name: 8d02c7a6a09f7520ad180b0d943db475894cd39b0ccdb2ad2c44009d5f25c8a6
 2018-05-30 00:59:09 +00:00
drh
a0368d9396 Demonstration code on a possible technique for optimizing the use of IN 
operator on columns to the right of multicolumn indexes.  If the OP_Noop
generated where were really a new opcode that checked to see if there existed
any entries in the index with a matching prefix, it might prevent unnecessary
iterations of the IN operator.

FossilOrigin-Name: 92f0fe155d5546fc7f4a443d0630613dabe149061966308e5420fad652278f16
 2018-05-30 00:54:23 +00:00
drh
59ee43a78e Add a comment to justify a goto statement. No code changes. 
FossilOrigin-Name: f141d806476aabe592a15d83b72c9409d2cd6bd7f9cced1ea2513c134191430a
 2018-05-29 15:18:31 +00:00
dan
d6f784ef92 Further window frame tests and fixes. 
FossilOrigin-Name: e74c6e91859ec395c12ba2742542ff176a1d8364dcfb66b862240746bef54efc
 2018-05-28 18:30:45 +00:00
dan
fecfb3189b Do not require a statement journal in cases where REPLACE conflict handling is 
used to insert a single row, so long as the REPLACE operation cannot fire any
triggers or foreign key actions.

FossilOrigin-Name: 469a62ca33081854e54f3af6d93ab5a350484b149c8c8c4ee8be0ae5418382d9
 2018-05-28 18:29:46 +00:00
drh
341141c339 Fix the build so that it works with -DSQLITE_TEST_REALLOC_STRESS 
FossilOrigin-Name: 90ba2b2e5ce2619e68879eb325b43639159f27eb462b9fb6795534c91200a3d2
 2018-05-28 17:43:28 +00:00
drh
4031bafafb When compiling with SQLITE_DEBUG, add run-time checks to ensure that no 
statement aborts unless either there have been no writes or else there is
a statement journal.

FossilOrigin-Name: 5a4542dbcf17a9f7fed600897555c271e1651fd50eb41d0b126725b486e1d14c
 2018-05-28 17:31:20 +00:00
dan
79d4544d53 More fixes for different window frame types. 
FossilOrigin-Name: 2c85668a0f86bcfd3de4c65847ac252e136ce97409a2249c5f4f58e3756e9a69
 2018-05-26 21:17:29 +00:00
drh
59155065e0 Experimental change that allows overloaded functions to be analyzed by 
the xBestIndex method and used by the xFilter method of a virtual table.

FossilOrigin-Name: a353b1d7ee6c5989ba1b98a3990c9a4c2ff39ae66572fd1200606e8ef585e5fa
 2018-05-26 18:03:48 +00:00
drh
9201184711 Store application-defined function names as lower-case to avoid the need 
for case conversions before calling xFindFunction on virtual tables.
Avoid using lookaside to store the destructors for application defined
functions, as lookaside should be reserved for transient allocations.

FossilOrigin-Name: 777189ce88799f93f393fd14fd716111c85bcdcb23690fd561f78ea2bd2ce5da
 2018-05-26 16:00:26 +00:00
drh
7fc86b96ba Add a single sentence of documentation about the virtual table 
scan flags.  No changes to code.

FossilOrigin-Name: 27b4fa5dd0defc6ddaf5d8cde6a1e1162b70d99bfdc69c1d2290621a6d23ed91
 2018-05-26 13:55:04 +00:00
dan
09590aaa1b Fix "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" window frame 
processing.

FossilOrigin-Name: b4e9c686697a5211a3bfa47e63f0684e3d4241d8c292cffe1a967bc39ad7cd8f
 2018-05-25 20:30:17 +00:00
dan
83023a3357 Merge latest trunk changes into this branch. 
FossilOrigin-Name: 6232519899efc568465d8fcc9fcd79d46a2ce4ec05109d26d5eb1ebd239cd596
 2018-05-25 09:36:27 +00:00
dan
e105dd7622 Fixes for "ROWS BETWEEN <expr> FOLLOWING AND <expr> FOLLOWING" and "ROWS 
BETWEEN <expr> FOLLOWING AND UNBOUNDED FOLLOWING"

FossilOrigin-Name: 5ac44872fd5c4f92851e7bf57d7207bb4d67de88ea2b5c746ff97f20bd6352e1
 2018-05-25 09:29:11 +00:00