database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-14 00:22:38 +03:00
Code Activity
18,808 Commits 1,608 Branches 185 Tags
43c4ac8bfecba96e4db6d075c5fa743a4fe25ea5
Commit Graph

1008 Commits

Author SHA1 Message Date
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
dan
923cadb1ae Test that the left and right sides of a compound SELECT operator have the same number of expressions in the expanded expression list before beginning to generate code. 
FossilOrigin-Name: 4df852ce26c95d5d23c83dbe9c59d2c3435acddf
 2015-06-23 12:19:55 +00:00
drh
606f2344e9 Pervent the likelihood() function from moving ON clause terms of a LEFT JOIN 
into the WHERE clause.
Fix for ticket [5f60b11fc8e23490e2]

FossilOrigin-Name: ed96e14adce4a4f94cc6838c46bc97937c4cb72a
 2015-06-18 14:32:51 +00:00
drh
38b4149ca1 Factor out the TreeView parse tree printing module into a separate file. 
FossilOrigin-Name: c32ce54ca46a4be4373983be6fd44b1f3a0250d1
 2015-06-08 15:08:15 +00:00
drh
b121dd14ac Code simplifications in select.c and where.c. 
FossilOrigin-Name: 4f20ac90bce8bd7ba43ef59af5cc4ef7aa282fe8
 2015-06-06 18:30:17 +00:00
drh
adc57f6834 Minor cleanup of the sqlite3Select() procedure. 
FossilOrigin-Name: f4c90d06bb941453d8110680c7b279e471e8f034
 2015-06-06 00:18:01 +00:00
drh
4490c40b90 Split FROM-clause subquery flattening and code generation into separate loops. 
FossilOrigin-Name: be8e3fc70e4c13b28b07985df3457960f58ffddd
 2015-06-05 22:33:39 +00:00
drh
bc8edba10a Provide one final Select tree dump prior to WHERE clause analysis 
when ".selecttrace 0x400" tracing bit is set with SELECTTRACE_ENABLED.
Analysis and debug changes only - normal builds are unaffected.

FossilOrigin-Name: 283bf0b64da7acc5aa5812fc659954965002d409
 2015-06-05 20:27:26 +00:00
drh
d62fbb50e6 Change the name of SrcList.a[].zIndex to the more descriptive 
SrcList.a[0].zIndexedBy.

FossilOrigin-Name: 6a9cf063379118dbb95c6cdc6d60af50e9867177
 2015-06-04 12:08:53 +00:00
drh
4c393a82df For FROM-clause subqueries that cannot be flattened, try to push relevant 
WHERE clause terms of the outer query down into the subquery in order to help
the subquery run faster and/or use less memory.

FossilOrigin-Name: 6df18e949d3676290785143993513ea1b917d729
 2015-06-02 18:09:18 +00:00
drh
05883a3409 Rename SQLITE_AFF_NONE to SQLITE_AFF_BLOB. 
FossilOrigin-Name: bce3f04186cd2d69414a5a98b5b77dc8f060554a
 2015-06-02 15:32:08 +00:00
drh
69b72d5a29 For FROM-clause subqueries that cannot be flattened, try to push WHERE clause 
terms of the outer query down into the subquery in order to help the subquery
run faster and/or use less memory.

FossilOrigin-Name: 297fae7551a2af9e600d833801ff79fca0602ad5
 2015-06-01 20:28:03 +00:00
drh
7cea7f95c7 Using "SELECT ALL" instead of just "SELECT" on a query that uses a single 
unflattenable subquery or view in its FROM clause will force the subquery to
be manifested into a temporary table rather than run incrementally using a
co-routine.  This is a stop-gap means of controlling the decision to manifest
while we try to work out a better to make that decision automatically.

FossilOrigin-Name: a29e117d7ecec05da949348689dbfb0d3acb1280
 2015-05-29 01:35:19 +00:00
drh
fccda8a162 CTEs have never add working rowids. So disallow the use of the "rowid" column 
within CTEs.

FossilOrigin-Name: 0055df0445932a43e42b318ef88672dcbe312c3a
 2015-05-27 13:06:55 +00:00
drh
521d7bd214 Remove an incorrect and pointless assert(). 
FossilOrigin-Name: 8c3929bd42ff9c041df341aced5b7dbc0f563506
 2015-05-25 09:33:48 +00:00
drh
e2248cfd2d The SRT_Table type for the SelectDest object is now just an SRT_EphemTab for 
which the ephemeral table has already been allocated.

FossilOrigin-Name: b9727e6bbfc3c62c601227e86e62f2f39792fd1d
 2015-05-22 17:29:27 +00:00
drh
7f0cd09cdd Enhance the selecttrace display by showing Select.selFlags. 
FossilOrigin-Name: 45d3893c6142ee1dfed48e26a13cf547da12468a
 2015-05-19 23:56:07 +00:00
drh
df553659ad Make a hard copy of the results of a subquery lest the result of the 
subquery be referenced after a change to the table that generated the subquery
result.

FossilOrigin-Name: 9c0d80907b4dee8ee8f205c2ebdb759f5ba1d771
 2015-05-18 04:24:27 +00:00
drh
9af8646dce Fix a faulty assert() in the SELECT code generator and add a test case 
to prevent regression.

FossilOrigin-Name: 1421c8ffba179d6aafa2643012f80a2738779117
 2015-05-04 16:09:34 +00:00
drh
c049057242 Cleanup of the sqlite3StrAccumInit() function. No functionality changes. 
FossilOrigin-Name: 7952c32268aa650d9ee946d5bfe190f712e3bbe6
 2015-05-02 11:45:53 +00:00