database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-12 13:01:09 +03:00
Code Activity
16,992 Commits 1,607 Branches 185 Tags
f99dd359d00fd5af78d8ccb4b7c27fc82f578ddb
Commit Graph

927 Commits

Author SHA1 Message Date
drh
a04a8be2c2 When the [https://www.sqlite.org/queryplanner.html#partialsort|block sorting optimization] 
is used in a scalar subquery, be sure to exit the loop as soon as the first
valid output row is received.  Fix for ticket [cb3aa0641d9a4].

FossilOrigin-Name: cdbb0947f9ce18d6d7e29ffab5ea6a2ee5365fbb
 2016-01-13 17:50:10 +00:00
drh
9ca33fa4c2 Fix an uninitialized field in the Select object when SELECTTRACE is enabled. 
FossilOrigin-Name: fc62851667d9120f98a2641c87bbc5a2485482b2
 2016-01-12 02:00:24 +00:00
drh
ca3862dc6e Reduce the number of calls to memset() in sqlite3DbMallocZero(). 
FossilOrigin-Name: cede2bf8e42ac140a8cc75a1d173083f543ba467
 2016-01-08 12:46:39 +00:00
drh
9802947fd8 Improved OOM recovery in the SELECT code generator logic. 
FossilOrigin-Name: e6521a436d464a42b87a7d5ba5cc98235b92440a
 2015-12-03 21:47:30 +00:00
drh
f7ce4291a9 Remove unreachable branches from the decltype computation logic in the query 
planner.

FossilOrigin-Name: 4f2bcff94c672312805be1400050a7026f93a9d7
 2015-12-02 19:46:12 +00:00
dan
9a8941fc83 Have the sqlite3_column_decltype() API report the declared types for the left-most SELECT statement in a compound SELECT. 
FossilOrigin-Name: 3e1d71fcaf57c0223ab9a7366c8607f8f66bb21c
 2015-12-02 18:59:44 +00:00
dan
8836cbbcb4 Fix an obscure memory leak found by libfuzzer that may occur under some circumstances if expanding a "*" expression causes a SELECT to return more than 32767 columns. 
FossilOrigin-Name: 60de5f23424552c98aa760ac89149a3d51f895be
 2015-11-21 19:43:29 +00:00
drh
202923107d Do not allow table-valued function syntax on ordinary tables and views as those 
objects are not table-valued functions.
Fix for ticket [73eba7ba5c7c0fc].

FossilOrigin-Name: ff5716b89f99d9c4568a39f1f52524528a631623
 2015-11-21 13:24:46 +00:00
drh
80090f9221 When manifesting a view as part of an DELETE or UPDATE, be sure to include 
the hidden columns in the manifestation.

FossilOrigin-Name: 28df5dc4a9569f388af2ee0d1f016afbea132277
 2015-11-19 17:55:11 +00:00
dan
ba68f8f3f5 Fix problems with INSERT INTO ... SELECT ... statements that write to tables with __hidden__ columns. 
FossilOrigin-Name: 59bd0ec7d4327852ee8c0206b2c59d0a12484db8
 2015-11-19 16:46:46 +00:00
drh
1a1d3cd2f3 Create the new TK_ASTERISK token to represent the "*" in "SELECT *". Formerly 
that operator was TK_ALL, which was also used for UNION ALL.  Less confusion if
they operator symbols are distinct.

FossilOrigin-Name: 201ac6d449431dadc6b29faecd68b559bd64bc9f
 2015-11-19 16:33:31 +00:00
drh
03d69a6826 Only support the magic "__hidden__" column name prefix interpretation when 
compiled with SQLITE_ENABLE_HIDDEN_COLUMNS.

FossilOrigin-Name: 5490646b2eb74ea8bd5ab2690f69b9c707a0165f
 2015-11-19 13:53:57 +00:00
drh
6aed239acc Honor the "__hidden__" prefix on the columns of views. 
FossilOrigin-Name: 3071ba2bdbda7018d0a285eceb04b8527209ec1e
 2015-11-18 20:57:50 +00:00
drh
f0c9145a36 If a table column name begins with "__hidden__" then do not include that 
column in "*" expansions in SELECT statements, nor fill in that column in
an INSERT INTO that omits the column list.  <b>This branch is a 
proof-of-concept only and is not intended to ever be merged into trunk.</b>

FossilOrigin-Name: 2dbffb3a3b20dba7d7d86c8ad2e34633f616c78a
 2015-11-18 18:43:15 +00:00
drh
f7ee8965a5 Fix the column name uniquifier so that it works with zero-length column names. 
FossilOrigin-Name: 791761ebac26c82ab67bdf867117ec5b5d8b20b0
 2015-11-15 11:13:49 +00:00
drh
96ceaf8680 Code simplification in sqlite3ColumnsFromExprList(). Update the %z format 
code so that it works with buffers obtained from sqlite3DbMalloc().  Add a
testcase for the slow column name uniquifier.

FossilOrigin-Name: 9272426057b6cb2d913519ff4c97aa6e211f7d51
 2015-11-14 22:04:22 +00:00
drh
0315e3cc14 Use a hash table to improve the preformance of column name uniqueness checking. 
FossilOrigin-Name: 5b08f29f458c600401860c7d70d8174cf61e69f8
 2015-11-14 20:52:43 +00:00
drh
ebed3fa3e1 Use randomness to prevent showness in the generated-column-name uniqueness 
checking.

FossilOrigin-Name: 6266712968a2cdcd6f5a3007d60c2cf1b3faf912
 2015-11-14 16:47:23 +00:00
drh
6e7722669e Proposed fix for an infinite loop bug in the WITH clause semantic analysis 
logic.

FossilOrigin-Name: 028475cb17a4b50baf0e9aba9bd3403d0a5d03b0
 2015-11-07 17:48:21 +00:00
drh
2476a6f2cb Enhance TreeView to show WITH clauses. Add an assert to detect the 
infinite loop behavior when certain kinds of errors occur on a nested
WITH clause.

FossilOrigin-Name: 2040d88e877bdb69de125a047cefb4a1558e89e8
 2015-11-07 15:19:59 +00:00
drh
0030aaad67 Merge recent enhancements from trunk. Version now 3.9.1. 
FossilOrigin-Name: 26fa091d68e89a0b6af61ba706d23a9f37e8025a
 2015-10-16 20:53:57 +00:00
drh
ce78bc6e7e Enhance the use of the column cache for UPDATE statements, making them 
more efficient for the case where a column is modified to be an expression
of other unmodified columns.

FossilOrigin-Name: 871e091df651b2275a672c35ff938bd4b6db0d7f
 2015-10-15 19:21:51 +00:00
drh
99f4647ef5 Merge in all the 3.9.0 updates from trunk. 
FossilOrigin-Name: 29444149342fc6b1ea8cd34c2c8e1fcb06eaa7ed
 2015-10-14 20:09:54 +00:00
drh
bfad7be78a Detect and report circularly defined views even if the views have the 
columns defined in the CREATE VIEW statement.

FossilOrigin-Name: 9ab9c8c6d747647f8ade58c2c4812fc69a813368
 2015-10-11 20:39:46 +00:00
drh
2906490b71 Remove an unreachable branch in the query flattener substitution logic. 
FossilOrigin-Name: 46ee3453a31b5e793d5aaad471cec1b1a11ab2cf
 2015-10-11 20:08:31 +00:00
drh
d12b636330 Improved substitution logic in the query flattener. Saves code space, and 
(more importantly) works correctly with table-valued functions.

FossilOrigin-Name: 3d0bd95e977db50c314d33ec292f99e0539d7b4a
 2015-10-11 19:46:59 +00:00
drh
728e0f91bb Compiler warning fixes: Rename some local variables from "j1" to avoid a 
name collision with the j1() bessel function in the math library.  Omit a
dummy initializer that gcc 4.6.3 does not like.

FossilOrigin-Name: 9ddef84d432813f3ece8012047d08441caa3315d
 2015-10-10 14:41:28 +00:00
drh
8b0cf38a12 Simplifications to the VDBE bytecode that handles LIMIT and OFFSET. 
FossilOrigin-Name: 041df7c2f14b95868a08090354ebb3308050790e
 2015-10-06 21:07:06 +00:00
drh
9f1ef45f6a Fix the LIMIT and OFFSET handling for UNION ALL queries that contain a 
subquery with ORDER BY on the right-hand side.  Fix for ticket
[b65cb2c8d91f668584].

FossilOrigin-Name: 4b631364354068af95a01630469cb6fbfe8b52fd
 2015-10-06 17:27:18 +00:00
drh
e2b7d7a0a1 Remove dead code, replacing with assert() statements that make sure the 
code really was dead.

FossilOrigin-Name: 0e317dda5dfd35b742afd70dacb5bfb39aa3fc4a
 2015-09-29 15:50:04 +00:00
drh
2679f14fd9 Report an error if the number of named columns in a VIEW is different 
from the number of result columns in the SELECT statement that implements
the VIEW.

FossilOrigin-Name: 6e4ac0be2de1a16fcbb2a314504122ad95aa257e
 2015-09-25 13:42:55 +00:00
drh
ae1a015c87 Merge trunk changes into the cursor-hints branch. 
FossilOrigin-Name: fbe637620fb7f2c9395c9ddac77d26746d6d4178
 2015-09-24 15:06:30 +00:00
drh
6230212f4a Do not allow table-valued function syntax to be used on a view. 
FossilOrigin-Name: 97cfe346e140e42a604375551f8168276bdbea11
 2015-09-19 20:27:08 +00:00
drh
163c29c5f3 Merge enhancements from trunk. 
FossilOrigin-Name: 25ee3000e94d60d8c1d7b980f416dcc33eb11105
 2015-09-03 14:39:33 +00:00
drh
076e85f59c Add the sqlite3VdbeLoadString() and sqlite3VdbeMultiLoad() routines to help 
with code generation, especially on PRAGMAs.  Rename sqlite3VdbeAddGoto()
to just sqlite3VdbeGoto().

FossilOrigin-Name: 847387ec8e6fef283899578fb232b2c23b00ee5b
 2015-09-03 13:46:12 +00:00
drh
0ff287fb01 Add and use the sqlite3VdbeChangeOpcode() routine. Simplify the implementation 
of the other sqlite3VdbeChange*() routines.

FossilOrigin-Name: 0a5b00e493efae58252f9fc7bde5a469645942d5
 2015-09-02 18:40:33 +00:00
drh
2991ba050b Add the sqlite3VdbeAddGoto(v,i) routine as a shorthand for 
sqlite3VdbeAddOp2(v,OP_Goto,0,i).

FossilOrigin-Name: be78f413df1b0d874b44a866ef6bf17543d7e8a2
 2015-09-02 18:19:00 +00:00
drh
4970d4032e Merge enhancements from trunk. 
FossilOrigin-Name: 29570a604806e2a60a8eef7eaf1dce022d2a7004
 2015-09-01 18:31:19 +00:00
drh
5579d59fb3 Evaluate expressions only once when the same expression is used in both the 
result set and in the ORDER BY clause.

FossilOrigin-Name: c2f3bbad778504681b39ab9399a1eb3c1a35ab3f
 2015-08-26 14:01:41 +00:00
drh
0576bc59a7 Refactor With.a.zErr into With.a.zCteErr. No logic changes. 
FossilOrigin-Name: 58ba73630ecc4bc58b03a7962dd45b305ef605ef
 2015-08-26 11:40:11 +00:00
drh
8981b904b5 Enhance the CREATE VIEW syntax so that the names of columns of the view can 
be specified after the view name.

FossilOrigin-Name: d794b34da6f9c77dfe17773b0b17b22de72cce7f
 2015-08-24 17:42:49 +00:00
drh
38978dd4ed Do not apply the WHERE-clause pushdown optimization to terms that originate 
in the ON or USING clause of a LEFT JOIN.  Fix for ticket
[6df18e949d3676290].

FossilOrigin-Name: 351bc22fa9b5a2e50da3583a882c5aa390bda19f
 2015-08-22 01:32:29 +00:00
drh
c1bd84124b Merge recent enhancements from trunk, including table-valued expressions. 
FossilOrigin-Name: b9927c876c1d4e146cb6a603d82cd2489594084d
 2015-08-20 23:45:59 +00:00
drh
8a48b9c0b1 Minor refactor of the SrcList object so that it is able to hold the argument 
list to a table-valued-function in the FROM clause.

FossilOrigin-Name: b919376147597c4b73421abe5788f893baf1560b
 2015-08-19 15:20:00 +00:00
drh
bec2476afc Merge in all the trunk changes from the previous year. This breaks the 
cursor-hint mechanism, but provides a baseline for trouble-shooting.

FossilOrigin-Name: 82a7a61bc0883b1e7432548e4890791717aa1bb3
 2015-08-13 20:07:13 +00:00
mistachkin
89b31d73a6 Fix compilation issues with SQLITE_OMIT_COMPOUND_SELECT defined. 
FossilOrigin-Name: 9c39d4644530ccc532f4ff26464106c6da43269a
 2015-07-16 17:29:27 +00:00
drh
b63ce02f57 Do not allow recursive CTEs that use aggregate queries in the recursive part. 
FossilOrigin-Name: 6d2999afbc25b9c238e4028f637c10eaaf0ec75e
 2015-07-05 22:15:10 +00:00
mistachkin
c29cbb0bec Fix harmless compiler warnings and one macro VVA_ONLY macro usage issue. 
FossilOrigin-Name: bcc8a75509aafda61feb6dcc074668c79611a662
 2015-07-02 16:52:01 +00:00
drh
9c7c913cd6 Cache the sqlite3_context structure in the P4 operand of VDBE programs 
for faster SQL function dispatch.

FossilOrigin-Name: 2abc44eb3b9d489321baa50bc25e17dafbda3687
 2015-06-26 18:16:52 +00:00
drh
2ec18a3cce Mark some branches as unreachable after the recent change that recognizes 
mismatch result set sizes on compound SELECT statements sooner.

FossilOrigin-Name: c8d1f305b6e9dfc36b8e3f4ab92de4457884d903
 2015-06-23 23:31:52 +00:00