c0bb4459d3
Fix another issue to do with window-functions in aggregate queries.
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FossilOrigin-Name: 6413e38a174044c28fa9b8b937e6c972d144547a246e6f2882e782538300d042
2018-06-12 20:53:38 +00:00
7392569f5e
Fix some problems with using window-functions in aggregate queries.
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FossilOrigin-Name: fe7081e0952950f577234fcbb58f3c1efa4579267654fd2f713dc4804e470e7e
2018-06-12 18:40:17 +00:00
2a11bb23eb
Clarify the relationship between a Window object and its associated Expr.
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FossilOrigin-Name: 0cd55e98a478740032f5569ddc00fa5b0e063e90db6e00ac7598c9b7c2fffeee
2018-06-11 20:50:25 +00:00
26522d1c45
Fix handling of window frames containing negative number of rows. e.g. "ROWS x
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PRECEDING AND y PRECEDING" where (x<y).
FossilOrigin-Name: b6d9c7eda853420ae46a05bd432711e8bf9ebaa448c7d90ccfc0bcc338a87706
2018-06-11 18:16:51 +00:00
980cf25b10
Update Makefile.msc to include window.c in the build.
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FossilOrigin-Name: 16db73842ade5eb0fe02f257b91d1c7b41d830d3f17f8638b8fbaed309d9a852
2018-06-10 07:42:35 +00:00
96f55d0fa5
Merge recent trunk changes with this branch.
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FossilOrigin-Name: c71f23590c25b4cecd27722e6c0fc8e3bf320d399c7d9398b7016dd5cf5b05eb
2018-06-09 18:09:44 +00:00
8b98560d6e
Add support for FILTER clause on aggregate window functions.
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FossilOrigin-Name: ceaf798ea09184bc0e7d3dcf3ad4d909d2e4e7018754a8417a813f33010140a7
2018-06-09 17:43:45 +00:00
4ece2f2657
Slightly smaller and faster code by encapsulating wal-index hash table
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location information in a separate WalHashLoc object rather than passing
around the various elements as separate variables.
FossilOrigin-Name: 538a365b7a32ab7fa84f59d7556242cfb59b76d287b6417eb3a823197a354e8e
2018-06-09 16:49:00 +00:00
a46ba6cca5
Improved comments an presentation for the recent IN operator decision
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improvement.
FossilOrigin-Name: 31e480f68dfd887cfd9114f9f9fec53d751d3ecc27e36f55c0166b51b2fbb08c
2018-06-09 14:13:46 +00:00
ccf6db5e64
Performance improvement to sqlite3WhereExprUsage().
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FossilOrigin-Name: fd0934139076848f2f2edfd3d74d54608531031a05a60ca6ac1d7016dcd538df
2018-06-09 02:49:11 +00:00
1fe3ac7347
Compute the bitmask of indexed columns for each index once when the Index
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objecct is constructed, instead of recomputing it every time it is needed.
FossilOrigin-Name: d735872ec383bbd220b08c61d25db9ff3675d2542b9e7867e7d6323a12e0cc23
2018-06-09 01:12:08 +00:00
da230bd484
Avoid invoking the whereLoopAddOr() routine in the query planner if there
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are no OR operators in the WHERE clause, thus speeding up query planning
slightly.
FossilOrigin-Name: 292724ffc4bfca435fff309383d488ffdbe1e314e5eb26da21cf2f621b64bce5
2018-06-09 00:09:58 +00:00
6d6decb8d9
Only choose to scan an IN operator rather than use an index if we have
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real STAT1 data to suggest it is advantageous.
FossilOrigin-Name: 30e874661dcc1a2ecb40df2ef74582151d85bb36c754a38548829a3b6285f18d
2018-06-08 21:21:01 +00:00
e3bf632cc2
Add support for the WINDOW clause.
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FossilOrigin-Name: 19c983b511f1c823fdfb051713681b4c779f02fa83b41189afca0a9b8b72048d
2018-06-08 20:58:27 +00:00
982c41977c
Merge the btreeNext() assertion bug fix from trunk.
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FossilOrigin-Name: 11bd66e09035039fbfc4c5631196962dd3f2e6634f5123a7b2fec17aeaaab07b
2018-06-08 19:54:07 +00:00
f3cd0c82df
Fix an assert() that can be false for a corrupt database and a strange query
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that uses a recursive SQL function to delete content from a corrupt database
file while it is being queried.
FossilOrigin-Name: 99057383acc8f92093530e216c621d40386a06fe98131ff0af6df524d80a6410
2018-06-08 19:13:57 +00:00
da4c409aea
Consider doing a partial table scan to fulfill an IN operator rather
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than using an index. Try to pick the plan with the lowest cost.
FossilOrigin-Name: 1fa40a78fef4516c39b217bff67efe7e7d2077cca00aae0ef5c2c9cff94f008b
2018-06-08 18:22:10 +00:00
dacf1de95c
Do not flatten sub-queries that contain window functions.
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FossilOrigin-Name: 236cb75bd1f0d5eb86aa5f52d8d548e7263c34633833dcea9dfc934f142113b8
2018-06-08 16:11:55 +00:00
03854d2ecc
Fixes to allow group_concat() to be used as a window function.
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FossilOrigin-Name: 89bbc9ba8f66853a7530453f146c9df1baacd8558468016cefa7602911f7578a
2018-06-08 11:45:28 +00:00
07509f8c1e
Merge latest trunk changes with this branch.
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FossilOrigin-Name: 251022034219819a1dc356542770ff46e3147a080f072eb20af6106771dadd92
2018-06-07 20:35:28 +00:00
fe4e25a0f6
Add window functions lag() and lead().
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FossilOrigin-Name: ef34207073c21ce8618486777671ae78d23f290acd6d3c37e91a49b69cb506ac
2018-06-07 20:08:59 +00:00
cf025a8c18
Fix the assert()s in the byte-code engine that prove that cursors
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are unidirectional.
FossilOrigin-Name: 4b0b4e14039469b656662312a5f80f086ede293e9ad04c7bc99a202b683a1e55
2018-06-07 18:01:21 +00:00
7095c002b8
Add support for window function first_value().
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FossilOrigin-Name: 060b26402880daab085ad01f5f0dbde957c7a22cd219be5b8ec94fba883051a0
2018-06-07 17:45:22 +00:00
f1949b6634
Remove the NextIfOpen and PrevIfOpen opcodes which are no longer needed
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when the IN-early-out optimization is working.
FossilOrigin-Name: 439c8162272795b422a0e01b01b832fbc12b39914c9632a674162af8bdecff98
2018-06-07 17:32:59 +00:00
056f5396fe
Test cases.
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FossilOrigin-Name: 085e863713a3f2d420c0076b275a6ac445a59d4d93f9eb0e8503b4e3f5589249
2018-06-07 16:07:00 +00:00
2e60568fef
Fix problems with the nth_value() function.
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FossilOrigin-Name: 63002b9a090397668b94fe341a035c42f84e4837af85395bce4cd1c2777c5209
2018-06-07 15:54:26 +00:00
64c1f77a8e
Merge the ".stat/.eqp" CLI fix from trunk.
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FossilOrigin-Name: a91cad3381bb843d6f58975251bf99f0fa1a1398fae53d97a98a6c8ee65e718e
2018-06-07 15:28:40 +00:00
3c49eaf4be
Avoid using a prepared statement for ".stats on" after it has been closed
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by the ".eqp full" logic. Fix for ticket [7be932dfa60a8a6b3b26bcf76].
FossilOrigin-Name: bb87c054b1b76959e46258ac66b24027f468b390a4148ac67f208a1fbeda4060
2018-06-07 15:23:43 +00:00
f7b0a5f3c3
Add the WHERE_IN_EARLYOUT flag and use it to clarify the logic of this
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optimization.
FossilOrigin-Name: 522f1eacc20f11002cad58232a7c2610f369568653510e54f46088f579f778dc
2018-06-07 14:59:22 +00:00
bd573c459b
Merge recent trunk enhancements.
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FossilOrigin-Name: e9d7bf4f7b9d6f8dabc4c95d43ebf12f2149bed1c5e750048b1b684128073c38
2018-06-07 14:32:16 +00:00
df12595c09
Change a comma into a logically equivalent but semantically clearer semicolon.
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FossilOrigin-Name: 71f97f0f82b3abfb07feb78d64a182fc50ff396e85d6f5aac479dbf58ba4d00a
2018-06-06 23:31:26 +00:00
6eb3480bd7
More space and performance enhancements to sqlite3VdbeRecordCompare().
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FossilOrigin-Name: 83a60ff056a63f18479030e9dfb10926fbb0d906d51f2cf88233098e15c75534
2018-06-06 20:55:10 +00:00
ec891fd40c
Add implementation of nth_value() window function.
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FossilOrigin-Name: eb1fb420ac70857e7ca4cbad78be15a27bee8f915ba2da080c7efa1879c06c31
2018-06-06 20:51:02 +00:00
d882108a01
Small performance optimization in sqlite3VdbeRecordCompareWithSkip() for
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the common case where the comparison is equal.
FossilOrigin-Name: 1e616e256a4fb1b64271706fdfa77dc5790eba0a2f0e619544e169bc61d7c805
2018-06-06 20:29:19 +00:00
4011c44322
Rearrange the order of some checks in the integrity_check pragma for a very
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slight performance gain.
FossilOrigin-Name: 4b853f020570bf4af1b14e03f35764c7d7a03a40af58efc783e06f2b883cef78
2018-06-06 19:48:19 +00:00
685a50ad74
Fix the sqlite3BeginTrans() calls within the snapshot extension.
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FossilOrigin-Name: 1fef7ad25b6a8e59163ac57f5cf0412bfc5b0e9446fd782f5f0a7d7ee11741fc
2018-06-06 18:50:50 +00:00
397776a823
Another minor optimization to OP_Transaction.
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FossilOrigin-Name: d80077aee3904e5d93164b342cae14d813de8e84e567462412751e06c7487d41
2018-06-06 17:45:51 +00:00
bb2d9b1bf1
Change sqlite3BtreeBeginTrans() to return the BTREE_SCHEMA_COOKIE, for a
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small speed improvement when starting new transactions.
FossilOrigin-Name: a10662aa915ae2b5a78b3e10920350d32255b2d6b1a8aac0aba1ad173b07ed2b
2018-06-06 16:28:40 +00:00
0cfd46a1ad
Fix the ".archive" command in the CLI (and the corresponding -A command-line
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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
8c2b6d784b
Add the OP_IfNoHope and OP_SeekHit opcodes used to reduce the number of
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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
280c894b74
Calculate non-aggregate expressions in the SELECT list of an aggregate query
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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
1c5ed624a0
Add implementation of last_value() window function.
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FossilOrigin-Name: 2493ce1a402888f6a8f25e03052c25a4e9bca740639e98cb614f5e5160ac25d3
2018-06-05 16:16:17 +00:00
86d0ea7558
Use an OP_NotFound opcode to cancel futile IN operators early. The current
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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
995bbbf993
Merge trunk changes.
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FossilOrigin-Name: 047295c588e9fdf2ffa4e69e166f177fd193309531dc6a9ac755fb7a763adb72
2018-06-05 13:54:06 +00:00
8e9deb61af
Update and correct the documentation on the OP_OpenRead, OP_OpenWrite,
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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
6bc5c9e788
Add implementation of window function ntile().
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FossilOrigin-Name: 3f093f608c6cc193aac77e7eafa8006c27a7776682d9d7b6e743710dff41ae42
2018-06-04 18:55:11 +00:00
6b27f5fab7
Merge recent changes from trunk.
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FossilOrigin-Name: f8df2a8e28acdd9573a9ffc18027553f35f769a989f5dfbf81f31b0656ee6065
2018-06-04 13:27:39 +00:00
2b1287cf44
Merge latest trunk changes into this branch.
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FossilOrigin-Name: 83d6416a868fac81a78c9507185a48d00920e4322276245e285946f760915f4a
2018-06-04 08:28:18 +00:00
f1abe3680e
Add support for window function cume_dist(). Improve tests for percent_rank().
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FossilOrigin-Name: 76543f7dd3a2310f6e81a1bae17db9bb5d2cf10c1b87ed3f8394b3e75576078b
2018-06-04 08:22:09 +00:00
dfa552f45b
Add support for window functions row_number(), rank(), dense_rank() and
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percent_rank().
FossilOrigin-Name: 91c1cb7a217d0991a08256269f6c55ef185c25362d57b36bfbd2d85dab38e58f
2018-06-02 21:04:28 +00:00
dan