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051170c4531e70f3d2ec7141970140eb9060b3a3
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308 Commits

Author SHA1 Message Date
drh
9fc1b9af36 NEVER() and ALWAYS() macros tagging unreachable branches. 
FossilOrigin-Name: 34b877742ef78e9bb3f16815180f4ad9cd722beb1d610f713400a3b25d68aa9b
 2020-01-02 22:23:01 +00:00
drh
378ca1eab3 Merge the latest enhancements from trunk. 
FossilOrigin-Name: bd57e6d923d3b04f0a07aaf18bf389d2b2b7efc7c57e8cb37e6ef910662d8397
 2020-01-02 21:41:59 +00:00
drh
171c50ec38 New test-only SQL functions: implies_nonnull_row(), expr_compare(), and 
expr_implies_expr().  The SQLITE_TESTCTRL_INTERNAL_FUNCTIONS test-control
is modified to toggle internal function access on and off for a single
database connection.

FossilOrigin-Name: 473892a8eceacf24d57fd0c72ff2a0b8be4e0d75e0af7a30bdb24fbc3b453601
 2020-01-01 15:43:30 +00:00
drh
b945bcdaf1 Experimental branch with new sqlite3_db_config() options that could possible 
enhance security for applications reading potentially compromised database
files.

FossilOrigin-Name: 96a2db2612f2e47bbec0e374a242820c88f03c42ccbf8467abccaef41469bae2
 2019-12-31 22:52:10 +00:00
drh
5f6a2ed7f2 Merge recent enhancements from trunk. 
FossilOrigin-Name: 39d55579376906f212271ce9b2d367e3ad029fb173f22c7253312b467970208a
 2019-12-31 14:49:10 +00:00
dan
e3735bf466 Fix a problem involving window function aliases being referenced from sub-selects. 
FossilOrigin-Name: e3b5fc05c00fc58be7a7c94ce1d97a5b05113f39aba03df64aab08364f85616b
 2019-12-27 19:46:07 +00:00
drh
ee5b6dd393 Merge fixes from trunk. 
FossilOrigin-Name: 9c471195f6d3e4b00e2d0f909b306a4036352082dca5f016a8eece226e82163d
 2019-12-13 12:14:23 +00:00
drh
2e2c8819f1 Ensure that there is a containing SELECT statement when processing a 
normal aggregate function as if it were a window function.

FossilOrigin-Name: c1014e80b26131200a115beb86929a8f0ded2dd65b075e47373346c0f170576a
 2019-12-13 11:42:56 +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
77318a3c3f Factor out the conditional (which is only true for rare errors) from the 
notValid() function in resolve.c, for a performance improvement and size
reduction.  Also cause failures to set the Expr node to a NULL operator so
that it does not cause problems later in case PRAGMA writable_schema=ON has
been set.  Test cases in TH3.

FossilOrigin-Name: c6af9f655b73200ecc0c4189698e421af6ca584babdc76e73a36d468b2eea1f9
 2019-12-12 15:19:18 +00:00
drh
0a8764ad7a Rename a local variable to avoid masking a function parameter and thus 
causing a harmless compiler warning.

FossilOrigin-Name: f065cf003bd2a3a580cb5b9fa2eacd8be075fe8c2bbc5688e9a9406abbfb3804
 2019-12-09 19:44:45 +00:00
drh
0824d5b9a5 The previous check-in was not quite correct, and introduced a new problem 
with the USING clause.  Use this version instead.

FossilOrigin-Name: ed28aaa4851202111a502f883ca06359d89b25bba4055c29d7bce2b501cfcc68
 2019-12-09 18:22:17 +00:00
drh
926f796e8f Ensure that the SrcList_item.colUsed field is set correctly (set to have a 
1 for all columns of the table) when a generated column appears in the USING
clause of a join.

FossilOrigin-Name: 1923efb283e8840fa7436eb20b9d2174ef7cace1690d3b97b572a0db2048b8e3
 2019-12-09 17:14:48 +00:00
drh
bf9d0996b9 Fix incorrect column-usage accounting associated with generated columns 
and added by check-in [6601da58032d18ae].  Fix for ticket [b92e5e8ec2cdbaa1].

FossilOrigin-Name: 9d75e1ccc72e9f536f45df3b24e9ecd25076cc1f7cf16b806b19e0e1b68e8326
 2019-12-08 00:06:39 +00:00
drh
22de8357df Fix a harmless compiler warning. 
FossilOrigin-Name: 34343c4b0657767f2676a2a9feb670cf000824e3eadfb1a6d87b57404191d8f9
 2019-11-22 11:49:39 +00:00
drh
522ebfa7ce Whenever a generated column is used, assume that all columns are used. 
FossilOrigin-Name: 6601da58032d18ae00b466c0f2077fb2b1ecd84225b56e1787724bea478eedc9
 2019-11-21 19:37:00 +00:00
drh
20cee7d0bb Always disallow the use of non-deterministic functions in CHECK constraints, 
even date/time functions that use the 'now' or similar keywords.  Provide
improved error messages when this requirement is not met.
Ticket [830277d9db6c3ba1]

FossilOrigin-Name: 2978b65ebe25eeabe543b67cb266308cceb20082a4ae71565d6d083d7c08bc9f
 2019-10-30 18:50:08 +00:00
drh
6ab61d7052 Minor adjustments for clarity and test coverage. 
FossilOrigin-Name: 30065716878d4058e75eb510b0b27b68e5193d04625eb173210de8061f20f499
 2019-10-23 15:47:33 +00:00
drh
81f7b37270 Initial experimental code for generated column support. Non-functional. 
FossilOrigin-Name: 11d472c1df707b8d03ec57d8fc582a34f5eb89a9d02a154a9871650c65065b45
 2019-10-16 12:18:59 +00:00
drh
d79cd92b23 Test for an OOM condition in resolveAlias(). 
FossilOrigin-Name: 322eca7f6ad2234059669015aabb773a790e8bc3da95431c9c851ff5342c969b
 2019-09-26 16:08:35 +00:00
dan
a51ddb1ed7 Fix a window-functions problem that could occur if an ORDER BY clause contains an alias for a window-function that is not a top-level expression. 
FossilOrigin-Name: 1cc6cf6407c6e25aeafeca379a93d0ad2614839c07fb3644e46926fce5f1cfab
 2019-09-26 15:53:37 +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
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
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
51755a78a9 Fix harmless compiler warnings. 
FossilOrigin-Name: 1eef4ddea9a2a8c97b97183402c774caa40ef906ea9cccade307381b29a9785d
 2019-08-08 19:40:29 +00:00
drh
af97c3f35a Fix a case of the Expr.affinity to Expr.affExpr refactor that was missed 
in the [a29f2a7d07beff64] check-in.

FossilOrigin-Name: 83450d10707e2c7c075f3930a8c231c49c593b9cdf0e6097b0187eb877755d2d
 2019-08-08 18:49:16 +00:00
drh
1194904b81 Refactor field Expr.affinity into Expr.affExpr to avoid confusion with other 
fields and variables named "affinity" and display affExpr it in
sqlite3TreeViewExpr() output.

FossilOrigin-Name: a29f2a7d07beff64e489e8f824babc6228c4a499fadc0ee701caa60a63baadcd
 2019-08-05 18:01:42 +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
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
drh
e209457295 Consolidate the removal of Window objects from the Select.pWin list into 
a single subroutine.

FossilOrigin-Name: e46b2afc99329c43de08d4a2e6ade4d2239d7409c5d5626bf272a3e0dd24d1b4
 2019-07-22 19:01:38 +00:00
dan
7f6f12bdd3 Remove Window objects from the corresponding Select.pWin list when they are deleted, as they are, for example, when the ORDER BY clause is optimized out. 
FossilOrigin-Name: fd7316cda0fdfe86985f41a97dff3beba188606ec9bc6fef38a686a6976a6e01
 2019-07-22 16:33:02 +00:00
dan
75b0821e99 Remove Window objects from the corresponding Select.pWin list when they are deleted. 
FossilOrigin-Name: d23f33168222dfa40a67dc7de58057418151989e81429e4af47617e86db04667
 2019-07-22 16:20:03 +00:00
dan
1e60261cfb Fix a problem with renaming tables when the schema contains an invocation of a currently unregistered aggregate with a FILTER clause. 
FossilOrigin-Name: bd37ce3fb8dee8d538f6afc0bfc13cdc3ebdd504e6461f0130c6ecc8af585f68
 2019-07-22 11:38:43 +00:00
drh
fd15e18d7f Make sure any window definitions in an ORDER BY clause are removed from 
the SELECT statement if the ORDER BY clause gets optimized out.

FossilOrigin-Name: 23b119671f0be3c6b72cf2dc5f7707a0626766db7aa56529ab00d33d1a0a1bee
 2019-07-20 21:12:31 +00:00
dan
9bf022d57c Fix a problem with renaming a table when the schema contains an invocation of a window function that is not currently registered. 
FossilOrigin-Name: ff290feb97f689cf6ce4162d6aa36f9f9dcf1bff3096847d53a85f39f728d2de
 2019-07-19 14:32:42 +00:00
dan
5e61c1b741 Fix error handling for the case where a window function is passed the wrong number of arguments. 
FossilOrigin-Name: 871796bb19e61c1282d8ac97a82d8b57bde50f2a2a08004ab53136d77c138df4
 2019-07-13 17:45:25 +00:00
dan
4f9adee289 Rework the FILTER clause implementation to share more code with window functions. 
FossilOrigin-Name: 5dac8c38dfc3f41c5c8fb49ca35de7fd1b21f269d72e8ba6ba59ed0a4030a54d
 2019-07-13 16:22:50 +00:00
dan
8117f113bc Minor performance improvement in sqlite3ExprDeleteNN(). 
FossilOrigin-Name: bcc8b38ac75b731a4cd2873ab83f423be036467a511b617c779869de9bbb5383
 2019-07-10 20:16:53 +00:00
dan
16e12c573d Add tests for the FILTER clause. And a bugfix. 
FossilOrigin-Name: 28aa1702f7f0334abd1b30e7aa48ea3679539b11bfbba32bc9f0d6049cf18a7b
 2019-07-03 18:31:20 +00:00
dan
6ba7ab0d25 Experimental implementation of FILTER clause for aggregate functions. 
FossilOrigin-Name: 1f1ae2d6ac8dcbb62e5aa3dc17bc67d559cb565fc0d0a8c00a596075d35f8130
 2019-07-02 11:56:47 +00:00
drh
d0ff601c62 Improved interface to double-quoted string literal enabling/disabling. 
FossilOrigin-Name: 923cfd53fcff2fcb91530bf819d2ecb0eda3f6a27dae29c7460f9ce3a3ffce7b
 2019-06-17 13:56:11 +00:00
drh
0a6873bfd6 Add SQLITE_DBCONFIG options LEGACY_ALTER_TABLE, NO_DQS_SCHEMA, and NO_DQS. 
FossilOrigin-Name: 1fad20925efa70d0c242e9cba8fa55456fb07a81229c1068da84c6e27d0c0be8
 2019-06-14 21:25:25 +00:00
dan
6ece353f2d Handle expressions like "expr IS TRUE COLLATE xyz" in the same way as "expr IS TRUE". Fix for [4d01eda8115b10d1]. 
FossilOrigin-Name: 5c6146b56a75a94f4baa10e95407c54dd0b9314a57a8702a4b96b15c4d7ac48c
 2019-06-12 13:49:32 +00:00
drh
a7d6db6ac0 The affinity of the unlikely() function and its cousins should be "none". 
Ticket [0c620df60bffd9ef]

FossilOrigin-Name: 614ecb0af47038848e8ba2aed6b92db6f33ddc4aea6361795dbde440380f5a35
 2019-06-11 21:02:15 +00:00
drh
3e4f6c43b8 A minor variation on check-in [1685610ef8e0dc] which (hopefully) makes the 
logic a little easier to follow.  Also disallows the use of the double-quoted
string hack in the query expression used for VACUUM INTO, which is not
strictly required, but moves us toward the goal of disallowing the double-quoted
string hack everywhere.

FossilOrigin-Name: 3e1b55f3ab85710ed81574904718205c7370b5f0b5a41029e961486d2e3f37c7
 2019-05-20 18:35:49 +00:00
dan
0d92571d65 Disallow string constants enclosed in double-quotes within new CREATE TABLE and CREATE INDEX statements. It is still possible to enclose column names in double-quotes, and existing database schemas that use double-quotes for strings can still be loaded. This addresses ticket [9b78184b]. 
FossilOrigin-Name: 1685610ef8e0dc9218b02461ceab14dc6114f4f5ef7fcda0da395094aff443e1
 2019-05-20 17:14:25 +00:00
dan
490e6f2506 Fix a stack overflow that could occur when renaming a table that has a trigger containing a window function invocation that itself contains a specific syntax error. 
FossilOrigin-Name: c621fc668c6538f9f5bdac204f012c64998679a61aa8e224d212503820224c09
 2019-04-29 11:27:58 +00:00
drh
d137f4e6e5 Recover a some of the performance lost by window function alias fix two 
check-ins back.

FossilOrigin-Name: 965cbcea117835d2c6d2ec58c8025b227f491c35805e282cb31228436bc6bec1
 2019-03-29 01:15:11 +00:00