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empty-table-optimizations
Commit Graph

9780 Commits

Author SHA1 Message Date
drh
3e36480232 Fix the OP_SeekGE, OP_SeekGT, OP_SeekLE, and OP_SeekLT opcodes so that they 
preserve the datatype of the value in the register used as the key.
Ticket [d9f584e936c7a8d0]

FossilOrigin-Name: 81b9f0f55042777b37de78069f7089041a9ee21dd0a0c86b879053fb46e140b4
 2019-08-22 00:53:16 +00:00
dan
2ebb550824 Update this branch with latest trunk changes. 
FossilOrigin-Name: 6153bcf41a9aa0497f8210311c99ac23846223068f2b6a3a1c2d9dec7673c7e1
 2019-08-21 15:41:50 +00:00
dan
f7c92e82d2 Avoid assuming that "column IS ?", where column is declared UNIQUE, matches only a single row (as "?" might be NULL). Fix for [b8689402]. 
FossilOrigin-Name: d02490a2f0cae047087130b4ad8f55f265845c2ffb3bde3b7d507edb54acea6d
 2019-08-21 14:54:50 +00:00
dan
6fcb9f3ad9 Fix a broken assert() in the fts3 snippet code that was failing for queries containging more than 64 phrases. 
FossilOrigin-Name: 4c01e0170e113ad052b6c3980beb4be9f1dc03fb3cf34132b90e8b82b23f654e
 2019-08-21 11:31:48 +00:00
dan
546738f855 Further tests for the special null-handling on this branch. 
FossilOrigin-Name: 0dbbb51f4d39cafb01d625d65c12dcb232a9c1da7ed5a9397bf55cfea1b980d2
 2019-08-20 20:09:51 +00:00
dan
2a0c16f276 Add tests for sort-by-index cases that use IN() and non-default NULL handling. 
FossilOrigin-Name: 09d660ecde723fb30f3bb3684bbb7f95825d78da6a6f33ddf57846054cd563e0
 2019-08-20 17:51:13 +00:00
dan
4fcb9caa60 Do not pass ORDER BY clauses with non-standard NULL handling to virtual table implementations. 
FossilOrigin-Name: a9a82ee88d2d12209a674bd19167277aa91a6912e7a8bbf3714f90d559307fee
 2019-08-20 15:47:28 +00:00
dan
4780b9ad46 Fix a segfault that could occur following an OOM while processing a SELECT statement for which one or more of the expressions in the window frame declaration are themselves sub-selects that use window functions. 
FossilOrigin-Name: 75aec4fc886c04fe098828cc03bc72c197cbf40f0a1890fe5bbb98d4fd5c3c7e
 2019-08-20 14:43:01 +00:00
dan
b6ce71bd26 Retain the affinity of an expression in a WHERE clause when it is transformed to a reference to an index column on the same expression. Fix for [f043b113]. 
FossilOrigin-Name: 511da0815673ca4a176aa61dc23a8231b2ab77e8363fc184a78b6e17dba64d49
 2019-08-20 11:43:44 +00:00
dan
ae8e45cb0c Fix problems with window frames that use ORDER BY ... NULLS LAST etc. 
FossilOrigin-Name: 75d665a494dd7d6e77d5a80af386ee5accc0a53416d5493424dc0fef6c7b01a0
 2019-08-19 19:59:50 +00:00
dan
9105fd5189 Prevent NULLS FIRST/LAST from being used in CREATE INDEX and other statements. 
FossilOrigin-Name: bb9767a287097a615aeb4abdba689b10e1a1c36c016c8e55905b508075e62c86
 2019-08-19 17:26:32 +00:00
dan
c324d44690 When populating an ephemeral b-tree for the RHS of an IN(...) clause, avoid applying an affinity to a value that may be used later on for some other purpose. Fix for [c7a117190]. 
FossilOrigin-Name: 43e8b14314d876178d487c3b519296ac1de065fdcaa70768e40d684015bceb9d
 2019-08-17 19:13:49 +00:00
dan
8328369740 Add tests to ensure that this branch really does fix ticket [f8a7060ece]. 
FossilOrigin-Name: f892066425671a8a0ac923e3ad4744677f6434a66f97b91afa8141f11f179975
 2019-08-17 18:16:59 +00:00
drh
9e9a67adb0 Ensure the functions that appear to be constant are not factored out of 
expression that originate on the right-hand side of a LEFT JOIN.
Ticket [6710d2f7a13a2997]

FossilOrigin-Name: 500c9152daaf11cf69d778aa8592175f6088337c6667c59af6df3a24cd81eb0e
 2019-08-17 17:07:15 +00:00
dan
5b32bdff80 Merge trunk changes into this branch. 
FossilOrigin-Name: db1e60800bc260cdcd604739daaba72c6b486158123fc62a3898aca4ead33cd3
 2019-08-17 15:47:32 +00:00
drh
cc3f3d1f05 Activate introspection pragmas by default. The new option 
SQLITE_OMIT_INTROSPECTION_PRAGMAS must be provided to keep them out.

FossilOrigin-Name: 9c4bca64fb5f635296a8d7d7c1bf2808e02ca734a9983e5cee9132f5352a9a6d
 2019-08-17 15:27:58 +00:00
drh
217ca657d8 The SQLITE_DIRECTONLY flag, when added to sqlite3_create_function() prevents 
the function from being used inside a trigger or view.

FossilOrigin-Name: de767376987f7668b0770c4920f1532e341b5a27f797d69c0f5e92b87d036170
 2019-08-17 00:53:29 +00:00
drh
cc5979dbd3 Add the ability to unregister a virtual table module by invoking 
sqlite3_create_module() with a NULL sqlite3_module pointer.

FossilOrigin-Name: 31e34fa3390196cdc3178bf120224b08df5ec58fa2c77079ede6e9461a430dad
 2019-08-16 22:58:29 +00:00
dan
15750a26fa Add support for using indexes for some ORDER BY clauses that use non-default NULL handling. Still some problems on this branch. 
FossilOrigin-Name: 81069d7196857e909c94195d67388f71bc9f832eafd9156d8c5cdddb63513b4a
 2019-08-16 21:07:19 +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
drh
42d2fce7f5 Provide the SQLITE_DIRECTONLY flag for app-defined functions that prohibits 
the use of those functions within triggers or views.

FossilOrigin-Name: fc745845d8d76adc165575e2192f4176e3c28e614c72571d56f4011560499fe1
 2019-08-15 20:04:09 +00:00
drh
725dd72400 Ensure that the optional "sz=N" parameter that can be manually added to the 
end of an sqlite_stat1 entry does not have an N value that is too small.
Ticket [e4598ecbdd18bd82]

FossilOrigin-Name: 98357d8c1263920b33a3648ef9214a63c99728bafa7a8d3dd6a1241b2303fd42
 2019-08-15 14:35:45 +00:00
dan
a3fcc000cb Ensure that SQLite does not attempt to process incompatible window functions in a single scan. Fix for [256741a1]. 
FossilOrigin-Name: 4f5b2d938194fab7627486e2ced633def2c90d9d3328e3700612feb9dbfa3d9a
 2019-08-15 13:53:22 +00:00
drh
27e80a3b68 Ensure that the cell overwrite optimization does not overwrite the header 
of the b-tree page.

FossilOrigin-Name: 4cc5694cbd69749c146679c367860952fdf3f5356426ddfd1dce470569702bc1
 2019-08-15 13:17:49 +00:00
dan
7c2321fdf3 Update test cases so that they work with ICU enabled. 
FossilOrigin-Name: 408144a1832569ced8e04840f0dd36a3867405f36b13631b0f13c0f7b8a0fb01
 2019-08-13 17:56:56 +00:00
dan
3c1970fcee Update some corruption test cases to take [724f4df9c] into account. 
FossilOrigin-Name: 927cd7b4c52fae665e57fb6039c6829e339cff5ad5c405800cac3ee149ef5be1
 2019-08-13 17:27:43 +00:00
drh
554a19dbee Make sure the btree cursor overflow cache is cleared when overwriting 
a cell in sqlite3BtreeInsert().  Ticket [3cf9bb227e9a5d32]

FossilOrigin-Name: 7dae7b969ed314605a3a2da2cfdce4d81152740f5d3bfbc2a6e311b13ee325a7
 2019-08-12 18:26:46 +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
c5a93d4c85 Validate the type, name, and tbl_name fields of the sqlite_master table when 
loading the schema, unless writable_schema is engaged.

FossilOrigin-Name: 724f4df9ccc2b683f7091a3f7a8c20ee210f44d7a610cd1b4c49da1c274add08
 2019-08-12 00:08:07 +00:00
drh
14c865e859 Fix the sqliteExprImpliesExpr() routine so that it recognizes that 
"(NULL IS FALSE) IS FALSE" doe not implie "NULL NOT NULL".
Ticket [9080b6227fabb466]

FossilOrigin-Name: da01ba4fa47c6508b31533ccd769e637af04bd37f51463372fbc6c848d892a4d
 2019-08-10 15:06:03 +00:00
dan
b6299681c6 Add extra test cases related to the previous commit. 
FossilOrigin-Name: 3c690b2b05b7338f3325c50a0750c6023e1173afa4388e836ecb2cc49f19a0ac
 2019-08-10 14:35:06 +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
drh
175b8f06f7 Remove support for STAT3. The sqlite_stat3 tables are ignored, if they 
exist.  STAT4 continues to work as it always has, and as it is a superset of
STAT3 is the recommended replacement.

FossilOrigin-Name: 1e17ea2fd1df4ad49138c787c8fe3207dd0c25c93f9001d52a9b69f8c12e841c
 2019-08-08 15:24:17 +00:00
dan
679c9613f6 Remove use of the affinity() function from view.test, as it is only available in SQLITE_DEBUG builds. 
FossilOrigin-Name: 7f2246a17be9915b3492624a3d8deff56694bdc372f7627e3f16c1869415b1a3
 2019-08-07 19:57:21 +00:00
dan
e7e48dc629 Add "set TMP=%CD%" to the start of each msvc script output by releasetest_data.tcl. Otherwise, since binaries compiled with SQLITE_TEST all choose the same sequence of pseudo-random numbers, collisions between temp file names cause errors when running multiple tests in parallel. 
FossilOrigin-Name: f5d0436d8dc650cadb61a5fe76fd1a0d68dabba54ff0c2a8c138f9dfbdab1c3f
 2019-08-07 18:34:21 +00:00
dan
0e3c50c5dc Eliminate some more cases of redundant sorting in window-function queries. 
FossilOrigin-Name: 8158d2aca68c5a253054376fdf1b8eaab2db874f4b93524742be7340e9c50dd5
 2019-08-07 17:45:37 +00:00
dan
2712b022ab Ensure that when the col in an operator like "val IN(col)" is a column of a view, its affinity is not used to coerce val. Fix for [0a5e2c1d]. 
FossilOrigin-Name: 17b3d2218c02a4005d4c96471c452105b54abb25901ae62990b01f0c955135fe
 2019-08-06 21:16:28 +00:00
dan
0a8d06a93f Add test cases to this branch. 
FossilOrigin-Name: f37317d81cc2864ed57c76a7347351310d61c8056a2a0179218530ba60a44986
 2019-08-05 20:45:53 +00:00
dan
72d1eac673 Fix a problem with renaming a table when a view or trigger within the schema uses a FILTER with an aggregate function that is not currently registered with the database. 
FossilOrigin-Name: 2ac0e42f8ab7a9184c2a2efd13bd50ab51bc01f9f34e9e63591fd18db02dff54
 2019-08-05 13:19:25 +00:00
dan
192418bd49 Fix a problem with queries of the form "SELECT min(<expr>) ... WHERE <expr>=?" where there is an index on <expr>. Fix for [71e183ca]. 
FossilOrigin-Name: d465c3eef458c851d97eea6e4117247d9c69386b276168080dbff7bb64070c93
 2019-08-03 16:37:40 +00:00
drh
2e6d83bc49 Give the SQLITE_TESTCTRL_PRNG_SEED two arguments. The second argument if not 
NULL is a pointer to a database connection which seeds the connection from
its schema cookie.  In this way, fuzzers can control the PRNG seed.

FossilOrigin-Name: 49aa34480622cce4d7a72c59d9cfa8336886387acec8ee15b72f295ea1a52d8c
 2019-08-03 01:39:20 +00:00
drh
e6e96b1b45 Fixes to the PRNG_SEED pragma idea. 
FossilOrigin-Name: c71098409c98af8360f8f28b9238a12ec764018a5782e8ff03fdf5db54031d6e
 2019-08-02 21:03:24 +00:00
dan
ddd7421c91 If a query like "SELECT min(a), b FROM t1" visits no rows where "a" is not null, extract a value for "b" from one of the rows where "a" is null. Possible fix for ticket [41866dc37]. 
FossilOrigin-Name: a7277ed0623dccdbf775ae6127611d6bc6e150f6942a048ab4281e5136c0e98d
 2019-08-02 18:43:59 +00:00
drh
d744ee0b50 The sqlite3_set_authorizer() interface should only expire prepared statements 
when it is setting a new authorizer, not when clearing the authorizer.  And
statements that are running when sqlite3_set_authorizer() is invoked should be
allowed to continue running to completion.

FossilOrigin-Name: 961e2f08c35238bcb1d32430d16451a96807b2c4bbb194ee621128dd09cd3981
 2019-08-01 22:48:45 +00:00
dan
401593e348 Add new release tests for windows to releasetest_data.tcl. 
FossilOrigin-Name: 1b330ec24c350c59f6d3779f6c0819fe95b89f4dfca5a1f2c22f22b5fe9cd087
 2019-08-01 15:18:51 +00:00
dan
71f059c880 Fix a problem in ALTER TABLE triggered by views or triggers that include the construction "ORDER BY true" or "ORDER BY false". 
FossilOrigin-Name: 8168021f9ab5fb8b4888257963c9ec68fd1dfeedaf6bba4b8e07438001d0be0f
 2019-08-01 10:58:46 +00:00
dan
45cb2aa98c Update "releasetest_data.tcl" so that it is a standalone script that generates sh or batch scripts to run each tcl test run at release time. Update wapptest.tcl to use it. 
FossilOrigin-Name: 559c2dd6724b2fc238760863d4be7132b591457e72ca5758fdd4002fbf7df4bc
 2019-07-31 21:08:55 +00:00
drh
9252df4969 New test cases in test/fuzzdata8.db. 
FossilOrigin-Name: 6e92d71c24c6039e7116f02fc5f39b2b87efcd3674ea828077c03d760bf49c45
 2019-07-31 15:16:14 +00:00
drh
2ad07d96b6 Improved fix for ticket [ced41c7c7d6b4d36] that keeps skip-scan enabled, 
but avoids identifying a skip-scan as order-distinct (because it is not)
and thus forces a separate b-tree to implement the DISTINCT clause of a
query.  This undoes check-in [a871d69c6de65038] and substitutes a new fix.

FossilOrigin-Name: 89bf0399e87be76e7b264e0a35e8a6d3af0f9e71123a929c20754882b636ca70
 2019-07-30 14:22:10 +00:00