drh
4d79983ca5
Optimizations to the new EQP framework.
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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.
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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
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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.
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FossilOrigin-Name: 30704d2a52d37717d8b34a402c99ea32453e5c1a9840037dba96591f4acc1503
2018-03-19 16:06:11 +00:00
drh
96acafbea7
Clean up comments and variable names prior to merge.
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FossilOrigin-Name: 6445519e91c4f98b4a9a45d5091d733c31497ebf0eb23a76edce3091f626035d
2018-02-27 14:49:25 +00:00
drh
43c4ac8bfe
Code simplifications. New test cases.
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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.
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FossilOrigin-Name: 7e38305e6f71c3353df3d11d099e255eefbacceafd7ed2ccaba257fe2e7b8c38
2018-02-26 19:03:25 +00:00
drh
5a699a01ca
In the sqlite3TreeViewExprList() routine, show the "AS" alias name for
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each expression in the list, if it exists.
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2017-12-22 19:53:02 +00:00
drh
8c0833fb21
In the parse tree, combine LIMIT and OFFSET into a single expression rooted
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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
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scalar subqueries.
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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
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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
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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
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to the Select object.
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2017-03-13 17:37:13 +00:00
drh
54fc5cc2ae
Add an assert() to silence a coverity false-positive.
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FossilOrigin-Name: 97354093bceff28714a605068851cfa026c8272a
2016-11-04 11:23:30 +00:00
drh
55a6f6dc72
Merge recent changes from trunk.
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FossilOrigin-Name: c7271fbde1aebb15daaedb7f1fa75fe410fd46f6
2016-09-02 23:56:32 +00:00
drh
2e5c5052fd
Fix typos in comments. No changes to running code.
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FossilOrigin-Name: a07269f2a0f87e0b736127f528f6caf3b63f9052
2016-08-27 20:21:51 +00:00
drh
48cb3a7600
Display SELECT_COLUMN expressions in the .wheretrace debugging output.
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FossilOrigin-Name: 3b27a5da100037f75a4efc15e0354a6aa94194f8
2016-08-18 18:09:10 +00:00
drh
db97e56217
Display VECTOR expressions in .wheretrace and .selecttrace debugging output.
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FossilOrigin-Name: 157347e2580e5078c4081d602e9d1a82d194e719
2016-08-18 17:55:57 +00:00
drh
c84a4020ef
Improvements to WHERE-clause debug tracing. Show TK_MATCH expressions and
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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
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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.
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FossilOrigin-Name: d491745cab951e0de70f1f79b7640ea8aff6e8bb
2016-02-25 16:04:59 +00:00
drh
5f4a686f8c
Simplification and size reduction to the printf logic. Remove the bFlags
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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
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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
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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
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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
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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
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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
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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"
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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.
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FossilOrigin-Name: c32ce54ca46a4be4373983be6fd44b1f3a0250d1
2015-06-08 15:08:15 +00:00
