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a087eb8f6d28a05f3dbe8a4eee9deb45b746865d
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99 Commits

Author SHA1 Message Date
drh
018dbb17a8 Improvements to a comment. No code changes. 
FossilOrigin-Name: 1a3671c7003bfff817a8239424c2f945d9dfced97daadb5a5acab203b9bda69b
 2019-09-28 16:14:55 +00:00
drh
c204d81a6c Enhance treeview to show SOFT-COLLATE for TK_COLLATE operators that omit 
the EP_Collate flag.

FossilOrigin-Name: a97804620a27acc30bebd2aaa04e38f2f36de48b0931038ca8bdc9cb0c36b8f4
 2019-09-10 17:51:27 +00:00
drh
007ba6457e Bring the hard-heap-limit branch up-to-date with trunk. 
FossilOrigin-Name: 9b14eb77548d3f65f5a4c9b16cecdbce8a3fb663692aa8315fbd21aab3e89f0d
 2019-08-20 17:14:21 +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
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
drh
55b4c827fa In the ".wheretrace 0x100" debugging mode, show the structure of the 
main parameters to sqlite3WhereBegin() calls.

FossilOrigin-Name: fd598e475d353363e19adc27a671170f11ae9f6d8cad58cb2303fb2ad8ac6bec
 2019-08-03 16:17:46 +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
10c0e7115b Add the sqlite3_hard_heap_limit64() interface and the corresponding 
"PRAGMA hard_heap_limit=N" command.

FossilOrigin-Name: b0ccef61a7f92d20228becbf4f997bf0f4e46dad2deaf0896dc63b976ad1dd11
 2019-04-25 18:15:38 +00:00
drh
6f1644c0f9 Show the pointer address for Window objects in the TreeView display. 
FossilOrigin-Name: 1ae70ad2ffd36c27b154940126c5e3ed00c05c0d8761d9320a65a03b1b4e4dc6
 2019-03-28 13:53:12 +00:00
drh
0dc0e9c2af More improvements to TreeView output for Window objects: 
(1) Show when the frame-spec is implied rather than explicit.
(2) Move the FILTER clause out from within the OVER clause, making it
a sibling of the OVER clause, to match syntax.

FossilOrigin-Name: d6a07433421ac9a475ff0014587f0beefdf88ce89aef9443f8a20cd26083731f
 2019-03-28 13:35:28 +00:00
drh
fc15f4c528 Improved TreeView display of Window objects. 
Change the Window.eType field to Window.eFrmType to avoid confusion with
other "eType" values.

FossilOrigin-Name: ec2f207dedb223077bbd3e4584499250eb12219712c917e930acccfa2c46e23b
 2019-03-28 13:03:41 +00:00
drh
7eb2c9176a In the treeview debugging output, 
provide additional details for the Table object
associated with each FROM clause term.

FossilOrigin-Name: 11d4682d2eec133ccca99ca9cf2620cd249b4afe55918f3ebf93b454431f9c55
 2018-12-27 00:30:42 +00:00
drh
145d0a35d9 In the treeview.c module, break out the display of SrcList into a separate 
subroutine, so that it can be invoked while debugging.

FossilOrigin-Name: 8c74065f0031274d9bc711d5d53c39aefcfb2b2679811105974a2c7c7a9e1dcb
 2018-11-08 22:53:06 +00:00
drh
eda079cd2c Combine the Expr.pTab and Expr.pWin fields into a union named "y". Add a new 
EP_WinFunc property that is only true if Expr.y.pWin is a valid pointer.
This reduces the size of the Expr object by 8 bytes, reduces the overall
amount of code, and shaves over 1 million cycles off of the speed test.

FossilOrigin-Name: ad130bb86e74e6ce165fdbdce3a19699510f0e62071c1c7923b5a4538d888c7c
 2018-09-20 19:02:15 +00:00
drh
efad2e2366 Constant propagation is now restricted to just the WHERE clause. The 
mechanism is changed to take affinity and collation into account.  This
seems to give correct answers.  But the search for constant propagation
costs 4 million cycles in the speed test.

FossilOrigin-Name: 82c67efb723dba387964f690cd459b420e59e3367d9589016597a76531596391
 2018-07-27 16:57:11 +00:00
mistachkin
1489785be5 Fix typo of 'SQLITE_OMIT_WINDOWFUNC'. 
FossilOrigin-Name: 8607b84a5c53d8c9218c90802160a3000f1138b1f188e411a3af46253e0a69cc
 2018-07-23 18:53:49 +00:00
drh
fef37760da Identify Select objects within a single statement using small sequential 
integers rather than "0x%p".  This is more readable and yields the same result
on successive runs.

FossilOrigin-Name: a7cdc5bc85e0edfcc38f920c2ce91599bcbfdb49522d88b08c64596546d13881
 2018-07-10 19:48:35 +00:00
drh
a1fd4b520b Enhance the TreeView mechanism so that it shows the window function 
data structures as part of the abstract syntax tree.

FossilOrigin-Name: a2c0e1bec0d8a6f982572c4c5a8166319b8db0fe586057f7900f0ab72af6554e
 2018-07-10 06:32:53 +00:00
drh
0cdbe1aee0 Make the internal dynamic string interface available to extensions using 
the new sqlite3_str object and its associated methods.  This is mostly just
a renaming of internal objects and methods to use external names, through
there are a few small wrapper functions.

FossilOrigin-Name: 87f261f0cb800b06ad786f6df16f2c4dddd0d93dfdcc77b4a4eaa22920b56bf1
 2018-05-09 13:46:26 +00:00
drh
4d79983ca5 Optimizations to the new EQP framework. 
FossilOrigin-Name: 956fef361a795bd081d8e23ce4075dc8aafcee63ab7275d13b657b529d185b30
 2018-05-03 19:47:14 +00:00
drh
fbe07539d3 Fix a formatting issue in the TreeView output for bare expression lists. 
FossilOrigin-Name: a6356817815fe986c4d89475194e0537ebd46582d6df1034482bf08521182bdf
 2018-04-23 20:04:38 +00:00
drh
f20609d107 The ".selecttrace 0x2000" command causes just the top-level parse tree to 
be displayed, after all transformations, and showing the EQP iSelectId at
each level.

FossilOrigin-Name: ca34c2dd20ee071e6f8d60f91dbf474515a688ba57949143483da1641246cb25
 2018-04-23 17:43:35 +00:00
drh
926961dc53 Improved ".selecttrace" output formatting. No changes in non-debug code. 
FossilOrigin-Name: 30704d2a52d37717d8b34a402c99ea32453e5c1a9840037dba96591f4acc1503
 2018-03-19 16:06:11 +00:00
drh
96acafbea7 Clean up comments and variable names prior to merge. 
FossilOrigin-Name: 6445519e91c4f98b4a9a45d5091d733c31497ebf0eb23a76edce3091f626035d
 2018-02-27 14:49:25 +00:00
drh
43c4ac8bfe Code simplifications. New test cases. 
FossilOrigin-Name: 57508518ef9d003d259ba98dcc32e5104aca26731a7161808741fe10bc0830d0
 2018-02-26 21:26:27 +00:00
drh
3432821192 Enhance TreeView so that it can display the new IS TRUE expression trees. 
FossilOrigin-Name: 7e38305e6f71c3353df3d11d099e255eefbacceafd7ed2ccaba257fe2e7b8c38
 2018-02-26 19:03:25 +00:00
drh
5a699a01ca In the sqlite3TreeViewExprList() routine, show the "AS" alias name for 
each expression in the list, if it exists.

FossilOrigin-Name: 5efd854fe21470336ba4140294b6c90ef39af32e103b92c664438d7485c50f9a
 2017-12-22 19:53:02 +00:00
drh
8c0833fb21 In the parse tree, combine LIMIT and OFFSET into a single expression rooted 
on a TK_LIMIT node, for a small code size reduction and performance increase,
and a reduction in code complexity.

FossilOrigin-Name: 3925facd942c9df663f9b29b1e6f94f6be14af8c2b99eb691bfc836b4c220826
 2017-11-14 23:48:23 +00:00
drh
9f6e14c1ef For sqlite3TreeView() debugging output, show the Expr.flags field on 
scalar subqueries.

FossilOrigin-Name: dc857a96b00f13ffdf77bc222bc5acbbe14a36ca51e5368b568b3177d1be737a
 2017-07-10 13:24:58 +00:00
drh
31d6fd5507 Add the TK_IF_NULL_ROW opcode to deal with non-NULL result columns in the 
result set of a view or subquery on the RHS of a LEFT JOIN that gets flattened.

FossilOrigin-Name: 3a5860d86fadcf924316707918bf283d26c53b1473e5e67f5cff59d18c2a7742
 2017-04-14 19:03:10 +00:00
drh
d97cda43ab Enhance the sqlite3TreeView() display for Expr objects so that it shows 
the iRightJoinTable value for Expr nodes that have the EP_FromJoin property.

FossilOrigin-Name: 5159cb8f2bcfb1f7114786ba23082d2b91a26e3a7ddfae75f8bd362792949d5e
 2017-04-14 14:02:14 +00:00
drh
510b7ff536 Fix the sqlite3TreeViewSelect() routine so that it works with a null pointer 
to the Select object.

FossilOrigin-Name: 9034cf7efc603864f51e931c7dc4fbbc2d01904e951e78c88d4d80f9936250e8
 2017-03-13 17:37:13 +00:00
drh
54fc5cc2ae Add an assert() to silence a coverity false-positive. 
FossilOrigin-Name: 97354093bceff28714a605068851cfa026c8272a
 2016-11-04 11:23:30 +00:00
drh
55a6f6dc72 Merge recent changes from trunk. 
FossilOrigin-Name: c7271fbde1aebb15daaedb7f1fa75fe410fd46f6
 2016-09-02 23:56:32 +00:00
drh
2e5c5052fd Fix typos in comments. No changes to running code. 
FossilOrigin-Name: a07269f2a0f87e0b736127f528f6caf3b63f9052
 2016-08-27 20:21:51 +00:00
drh
48cb3a7600 Display SELECT_COLUMN expressions in the .wheretrace debugging output. 
FossilOrigin-Name: 3b27a5da100037f75a4efc15e0354a6aa94194f8
 2016-08-18 18:09:10 +00:00
drh
db97e56217 Display VECTOR expressions in .wheretrace and .selecttrace debugging output. 
FossilOrigin-Name: 157347e2580e5078c4081d602e9d1a82d194e719
 2016-08-18 17:55:57 +00:00
drh
c84a4020ef Improvements to WHERE-clause debug tracing. Show TK_MATCH expressions and 
show more details on WhereTerm traces.

FossilOrigin-Name: 71087c12bc75a82f5d1051600a442ef6efc5e899
 2016-05-27 12:30:20 +00:00
drh
94fa9c414a Eliminate the need for the Column.zDflt (using Column.pDflt instead) to reduce 
the amount of memory needed to hold the schema.

FossilOrigin-Name: d8c94a46dfa94930732c2de2aa79675c5087d36e
 2016-02-27 21:16:04 +00:00
drh
c3489bbf77 Take the LIMIT clause into account when estimating the cost of sorting. 
FossilOrigin-Name: d491745cab951e0de70f1f79b7640ea8aff6e8bb
 2016-02-25 16:04:59 +00:00
drh
5f4a686f8c Simplification and size reduction to the printf logic. Remove the bFlags 
parameter from sqlite3VXPrintf() and sqlite3XPrintf().  Use sqlite3XPrintf()
instead of sqlite3_snprintf() for rendering P4 values in EXPLAIN output.

FossilOrigin-Name: 0bdb41c45aa1cc8e5c136aaa6605d54b401483bd
 2016-01-30 12:50:25 +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
0b8d255c37 Omit all use of Expr nodes for TK_AS, as those nodes no longer served a useful 
purpose and in fact interferred with the query planner.

FossilOrigin-Name: 7ab0b258eabfcfb7f1b0bd1b12e166d2f267823d
 2015-09-05 22:36:07 +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
1c4505de91 Update the TreeView output for compound SELECT statements so that all entries 
are shown vertically aligned rather than each successive entry being indented.

FossilOrigin-Name: 65a8918776aa395009a690fa86bfc7d99eb973f9
 2015-08-26 11:34:31 +00:00
drh
01d230ce05 A list of arguments following a table name translates into equality 
constraints against hidden columns in that table.

FossilOrigin-Name: 40e12cfe4c29475417ba89fb637b4c763cf74016
 2015-08-19 17:11:37 +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
b3d903ebe5 Show the values of Expr.flag in the AST of ".selecttrace" 
FossilOrigin-Name: a84d1004cbee67f2b8ba1fd201e43af49ea67c1b
 2015-06-18 14:09:13 +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