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27,211 Commits 1,607 Branches 185 Tags
8dd4697e48c04a405c9c8da4a68b948e45b1f159
Commit Graph

1569 Commits

Author SHA1 Message Date
drh
bebce86cde Merge in the untrusted-schema enhancements. 
See [/doc/87aea3ab1cdda453/doc/trusted-schema.md|doc/trusted-schema.md]
for details.

FossilOrigin-Name: 5720924cb07766cd54fb042da58f4b4acf12b60029fba86a23a606ad0d0f7c68
 2020-01-09 20:44:37 +00:00
drh
7be5e3dd4c Fix a harmless compiler warning. 
FossilOrigin-Name: edbf911fdeda14bd63cd752f6237896400eb5a65ef486abe7b91433621d21b5c
 2020-01-09 20:33:13 +00:00
drh
32266a1072 Simplified error message for the unsafe use of a virtual table. 
FossilOrigin-Name: d662129a601e05e8fca5717a890b5bc920b80a750d061f3c2494788d32b917a5
 2020-01-09 13:08:28 +00:00
drh
19ca76af38 Merge recent changes from trunk. 
FossilOrigin-Name: 5962921fceaf2ec645379a5f1d18e2c2c13abbf92cf64606caee69f45a21c500
 2020-01-08 13:08:52 +00:00
drh
f8f76d672b Simplification of the logic in the constant-propagation optimization. 
FossilOrigin-Name: 1c3e5c20a9e6f501befa2bf6241a1b5190872bd83b765dac67065d252d04ea4f
 2020-01-08 04:36:01 +00:00
drh
c9301e6e7c Fix the constant propagation optimization so that it does not try to 
propagate constant expressions that have affinity.  Ticket [82ac75ba0093e5dc]

FossilOrigin-Name: 6db1c3498f6bfa01bb460e62b802b63ec4bf43577a17a94e1e2fa0ecc1e64960
 2020-01-08 01:43:47 +00:00
drh
97bffe674f Fix a misworded comment. No code changes. 
FossilOrigin-Name: ee0bc7ede0fbf3e54bb934c0d580c62d7393c984cbc374ece6d57fe9211dac26
 2020-01-08 00:39:37 +00:00
drh
3f68142b82 Enforce SQLITE_VTABRISK restrictions. 
FossilOrigin-Name: 3d87ff312e617a26846d482b423163cad9c222513f33e128f0fe348dda27c7c9
 2020-01-07 18:10:56 +00:00
dan
9e10f9ab05 Ensure the SF_Aggregate flag on a SELECT statement is set if a DISTINCT is transformed to a GROUP BY. Ticket [9c944882]. 
FossilOrigin-Name: 1409758f72c0206cc48f9f7e789382472949523b7056ea46f8dcb93fd3ea60c6
 2020-01-06 17:06:12 +00:00
dan
aa328b6ab1 Ensure that when a Select object is reset a new, empty, SrcList is allocated. 
FossilOrigin-Name: 4889cbf898d7ec54f061b21b6d3621b22fc482cbeaa7115d40995a4cc30e41db
 2020-01-03 13:55:14 +00:00
drh
0cbec59c8b When generating the name of a view (or common table expression) because the 
SQL does not specify a name, avoid the names "true" and "false" which might
be confused for the boolean literals of the same name, leading to an
inconsistent abstract syntax tree.

FossilOrigin-Name: ff9492d3ff733c222ea67f23d478df1547641b5e2e6dd870b0b29e25c13f3739
 2020-01-03 02:20:37 +00:00
drh
378ca1eab3 Merge the latest enhancements from trunk. 
FossilOrigin-Name: bd57e6d923d3b04f0a07aaf18bf389d2b2b7efc7c57e8cb37e6ef910662d8397
 2020-01-02 21:41:59 +00:00
dan
4ea562ee70 Ensure that when code for a scalar SELECT featuring window functions is generated more than once by the planner, separate ephemeral tables are opened for each instance. 
FossilOrigin-Name: ce1417325273aba866767349b55d9bbfb61a08e716bebda2122918a9657ee38c
 2020-01-01 20:17:15 +00:00
drh
5f6a2ed7f2 Merge recent enhancements from trunk. 
FossilOrigin-Name: 39d55579376906f212271ce9b2d367e3ad029fb173f22c7253312b467970208a
 2019-12-31 14:49:10 +00:00
drh
8d95ed789e Fix a typo in a comment. No changes to code. 
FossilOrigin-Name: d4813a8d813f234e819f8ebefbd3ff96d3d69593cc7d716cf0ad6c1a126da827
 2019-12-30 20:42:17 +00:00
dan
9d41af23a4 Do not use HIDDEN columns for NATURAL joins. Fix for [7c0e06b16]. 
FossilOrigin-Name: ab09ef427181130be09a087b7e572ad4cfb6b3e1b459769ee5ebf046b3ead682
 2019-12-30 14:32:27 +00:00
dan
997d7434b7 Do not attempt to flatten compound sub-queries in a FROM clause into the parent if any component of the sub-query uses a window function. 
FossilOrigin-Name: eeb76f621de2f930a548db0fbb9fe25b4479b73581826b8dfa2e63cd1f1ab783
 2019-12-28 18:25:51 +00:00
dan
a6c1a71cde Do not attempt to unwind the WITH stack in the Parse object following an error. This fixes a separate case to [de6e6d68]. 
FossilOrigin-Name: d29edef93451cc67a5d69c1cce1b1832d9ca8fff1f600afdd51338b74d077b92
 2019-12-27 20:54:42 +00:00
drh
aaa5ba0609 Fix an incorrect assert() added by check-in [fa58aad48a788802]. 
Problem found by dbsqlfuzz.

FossilOrigin-Name: a17b29f08c888301911c35096899f10d24192c8ecec467cddde5401b6bd1903f
 2019-12-26 00:53:43 +00:00
drh
a9ebfe2030 When the sqlite3WindowRewrite() routine detects and error, have it convert 
the SELECT statement into just "SELECT null" so that it does not leave the
parse tree in a goofy state that can cause problems with subsequent code
before the stack has a chance to unwind and report the error.
Ticket [d87336c81c7d0873]

FossilOrigin-Name: fa58aad48a788802b13a819e49f9b8787f713bbe395c46c7295e821c52c81738
 2019-12-25 23:54:21 +00:00
drh
8428b3b437 Continuation of [e2bddcd4c55ba3cb]: Add another spot where it is necessary 
to abort early due to prior errors in sqlite3WindowRewrite().

FossilOrigin-Name: cba2a2a44cdf138a629109bb0ad088ed4ef67fc66bed3e0373554681a39615d2
 2019-12-19 22:08:19 +00:00
drh
396afe6f6a Continue to back away from the LEFT JOIN optimization of check-in [41c27bc0ff1d3135] 
by disallowing query flattening if the outer query is DISTINCT.  Without this fix,
if an index scan is run on the table within the view on the right-hand side of the
LEFT JOIN, stale result registers might be accessed yielding incorrect results,
and/or an OP_IfNullRow opcode might be invoked on the un-opened table, resulting
in a NULL-pointer dereference.  This problem was found by the Yongheng and Rui fuzzer.

FossilOrigin-Name: 862974312edf00e9d1068115d1a39b7235b7db68b6d86b81d38a12f025a4748e
 2019-12-18 20:51:58 +00:00
drh
c4938ea2ba Tie up the loose ends in the ExprList size reduction. 
FossilOrigin-Name: 59d0f3afe5249a2a6453fe7bc810c2c7beb896d3800174c7c90f9304c0b1ad88
 2019-12-13 00:49:42 +00:00
drh
cbb9da337e Work toward reducing the incremental size of an ExprList object to 24-byte 
per entry, from 32-bytes (on a 64-bit machine).  This helps the new
mini-lookaside allocator to run better by avoiding excessive reallocs.
The current change mostly works, but still has a few loose ends to tie up.
This check-in is merely a snapshot to save my work.

FossilOrigin-Name: fdda76cfb01bf2b19522ac4558b443634d28a69b0828677c42682b645eae1f3b
 2019-12-12 22:11:33 +00:00
drh
41cee66848 Change the name of the Expr.a.zName field to zEName, so that it has a name 
that is distinct from other fields and variables and is hence easier to
grep for.

FossilOrigin-Name: d3783357f8fa76c42a86f12b214522f0388c37773c36ab8c5ce0623abbc4436a
 2019-12-12 20:22:34 +00:00
drh
29cdbadf8a Correctly deal with multi-row VALUES clauses that contain window functions. 
FossilOrigin-Name: 26d991f214db143976e2593d3564b5003eb3539a2728d1a0ccae2a2accece76f
 2019-12-07 13:42:47 +00:00
dan
fcc057db25 Fix a double-free that could occur when a component of a compound SELECT with an ORDER BY clause uses named window definitions. 
FossilOrigin-Name: 92893b7980cbb0c6e26bc0b21390a717193205c9897fea5f26476462928897f9
 2019-12-04 01:42:07 +00:00
dan
e59c562b3f Fix a crash that could occur if a sub-select that uses both DISTINCT and window functions also used an ORDER BY that is the same as its select list. 
FossilOrigin-Name: bcdd66c1691955c697f3d756c2b035acfe98f6aad72e90b0021bab6e9023b3ba
 2019-11-22 10:14:01 +00:00
drh
8103a03607 Fix table-valued functions so that they will work as the right table 
in a LEFT JOIN.  Ticket [2ae0c599b735d59e]

FossilOrigin-Name: 2c35d3f67b67a53ead08b1c395e7ca8e5bf65f94a5a962a0562994a3c66c95d9
 2019-11-15 00:52:13 +00:00
drh
46a31cdf6b Make sure the WITH stack in the Parse object is disabled following an error. 
FossilOrigin-Name: de6e6d6846d6a41c4821454dfdc042096234df753be08c5567b79fe535d9b6ea
 2019-11-09 14:38:58 +00:00
drh
166bc383e2 Minor changes to help ensure the pointer returned by sqlite3VdbeGetOp() is 
not used after it becomes invalid.

FossilOrigin-Name: 346bdd49fb93aa58e8bd14250974d8c0c32cc7e8317c8b12da1fa44db10d8a3a
 2019-10-26 15:40:17 +00:00
drh
898c527eaf When flipping ("commuting") a comparison operator, set the new EP_Commuted 
bit rather than adding extra EP_Collate bits, to single later processing that
the order of precedence for COLLATE operators is inverted.
Fix for ticket [b47e3627ecaadbde]

FossilOrigin-Name: 90f7c477354d67d22d5eb0da22dac579f384ab44743fdc19887220e32203ebc2
 2019-10-22 00:03:41 +00:00
drh
a0fe5fe54f When Select-Trace is enabled (in debugging builds only) do not show the 
result of Window function tree rewrites if there are no window functions.

FossilOrigin-Name: d1acf72ae1ea7484bb9c3a8630094f1a3a9597578c7b9d6e02fc0a4e3f59c57d
 2019-10-12 23:38:00 +00:00
dan
3703edf110 Be sure to rewrite column references inside FILTER clauses and window frame definitions when flattening queries. Fix for [1079ad19]. 
FossilOrigin-Name: ccba7202b69d239724c3b589439c9c3b0e1bba237accfeb11c39d492522b8719
 2019-10-10 15:17:09 +00:00
drh
5776ee5cf5 Omit the sqlite3IntTokens array constant for a code simplification. 
FossilOrigin-Name: f907395ef5a2dc1d084b6a286af00de4c742cf12d4f347c21e1b757786508f57
 2019-09-23 12:38:10 +00:00
drh
e39f388eb1 Fix harmless compiler warnings. 
FossilOrigin-Name: 8ea1dc727d391b15d0c4fa858ff68d5b8a63dde46408f24027dac8d28f044cbd
 2019-09-21 17:31:03 +00:00
dan
8c9bcb2328 Allow SQLite to omit redundant ORDER BY sorts in the case where a SELECT statement has GROUP BY and ORDER BY clauses that use the same expressions, even when the ORDER BY expressions are marked "DESC". 
FossilOrigin-Name: 20f7951bb238ddc0b8932a55145df426b6fdf7b8631e069345902c853c90f191
 2019-09-21 15:44:12 +00:00
dan
af9b58b335 Simplify the fix in the previous commit. 
FossilOrigin-Name: 5ef64b0f55d952c7b0016055eaf6bbc1b5b7afc09a62ee8e5e694ffa9863ac7c
 2019-09-20 21:12:40 +00:00
dan
ed09dddece Fix a problem with queries containing a min() or max() function for which the FILTER clause excludes all rows. 
FossilOrigin-Name: b1d7e104e034655fe41bc55c562d91e8074a2973d538b8b29301458db45afc57
 2019-09-20 20:52:16 +00:00
dan
fa50834914 Ensure the columns of views and sub-queries maintain their implicit collation sequences when the "push-down" optimization is applied. Fix for [18458b1a]. 
FossilOrigin-Name: 36997c4ade2ef3a274cd1ac52b44118fb3a05325adb650b7b338ecb43d060575
 2019-09-10 15:33:52 +00:00
dan
e08663946e Ensure the columns of views and sub-selects in the FROM clause of a select are always assigned implicit collation sequences, just as table columns are. Possible fix for [a7debbe0]. 
FossilOrigin-Name: 1863b7bf12521bdd2b51c5b8d3a4634bff3e15d3713e0b5343952df7da02f794
 2019-09-09 19:49:42 +00:00
dan
8085d53d3c Add support for "ORDER BY ... NULLS FIRST" and "ORDER BY ... NULLS LAST". Use this to fix ticket [f8a7060e]. 
FossilOrigin-Name: 94085fb3e756bc984237b74b6e29c68462ad860870c64dcb5124feaeec387660
 2019-08-27 19:59:21 +00:00
drh
790b37a240 Omit the "x IN (y)" to "x==y" optimization of check-in [e68b427afbc82e20] 
(and ticket [e39d032577df6942]) as it causes difficult affinity problems
as demonstrated by ticket [dbaf8a6820be1ece] and the original assertion fault
is no longer a factor due to countless other changes of the previous 5 years.

FossilOrigin-Name: 7f5168a76a400fc2e1e40c6950470b1bfb38a0be54fc5518c17c29fdae7d8f1f
 2019-08-27 17:01:07 +00:00
drh
a677eecad3 Merge fixes from trunk. Also fix a reference to the KeyInfo.aSortOrder field, 
which should now be KeyInfo.aSortFlags

FossilOrigin-Name: 63e625c8eb06720eef30573aa562e38c90d228a9cf493f8bb59f09e50f0e3168
 2019-08-22 19:35:24 +00:00
drh
0d950af311 Fix the likely(), unlikely(), and likelihood() functions so that they have 
no affinity, just like any other function.
Ticket [7e07a3dbf5a8cd26]

FossilOrigin-Name: 44578865fa7baf9760e355691ca9ce753295aaba7a4ee0bba29d4f85d9335bab
 2019-08-22 16:38:42 +00:00
dan
5b32bdff80 Merge trunk changes into this branch. 
FossilOrigin-Name: db1e60800bc260cdcd604739daaba72c6b486158123fc62a3898aca4ead33cd3
 2019-08-17 15:47:32 +00:00
drh
11d88e68ab Add the SQLITE_DBCONFIG_ENABLE_VIEW option, together with a "db config" 
command in the TCL interface that can access that option as well as all the
other sqlite3_db_config() boolean options.

FossilOrigin-Name: 61b4bccd2984f4c2cf50f58ef08677588e57aa7e079af07473b2e188d9ce4f52
 2019-08-15 21:27:20 +00:00
dan
6e11892db8 Experimental implementation of NULLS FIRST/LAST. This branch still has problems - the most significant of which is that ORDER BY clauses with a non-default NULLS FIRST/LAST qualifier can never use an index. 
FossilOrigin-Name: 07babb0f897fc8c9cb5b30481899c32fdd743f3f3ca508d8d957826252107dd5
 2019-08-12 16:36:38 +00:00
drh
3251a2031b Remove two incorrect assert() statements from the logic used to derive 
column names and types from subqueries.

FossilOrigin-Name: 712e47714863a8ed7ff73324d9fec569633e8b901c436c633b0220d16a7a9302
 2019-08-10 14:16:17 +00:00
drh
cb99c57a66 Allow the RHS of a row-value IN operator to use a compound query with 
an ORDER BY clause.

FossilOrigin-Name: eaf15d9bae6773058341d6219241f44ce728ad1cb9cf649f2efd4dddd81ec461
 2019-08-09 20:26:01 +00:00