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19,138 Commits 1,611 Branches 185 Tags
98b677f2cb15b1dff79920237b9961d7b5c05a5a
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13138 Commits

Author SHA1 Message Date
drh
c49832c208 Further comments on WITH-clause processing routines in select.c. 
FossilOrigin-Name: c948384dfdd9f68a832d5a452af44f35337f66e7
 2014-01-15 18:35:52 +00:00
drh
60c1a2f0b5 Add a header comment to the searchWith() routine. 
FossilOrigin-Name: d9ae0f5d9f8230ca7ca10ebed300e2f6635a0614
 2014-01-15 18:23:00 +00:00
dan
62ba4e418d Disable automatic indices on recursive CTE references. 
FossilOrigin-Name: 28aa6db8c878655255dbfb618f8d65be78e3d7e5
 2014-01-15 18:21:41 +00:00
dan
f43fe6e9f6 When resolving names, consider a reference to a recursive CTE column as equivalent to a reference to the outermost name-context. This ensures that correlated sub-queries are correctly identified as such. 
FossilOrigin-Name: 61be2da0ae623c1572819481508b044e9d32f294
 2014-01-15 18:12:00 +00:00
dan
60e7068d75 Return an error if a CTE specifies a different number of columns than its SELECT statement returns. 
FossilOrigin-Name: 9a514b50e4b01f109fbdb0aabcbfe1ddab129b44
 2014-01-15 15:27:51 +00:00
drh
a379b32f33 Don't try to verify the schema of transient table (such as generated inside 
a WITH clause) when generating code for "IN table" operators.

FossilOrigin-Name: 860aa936634a60d68e3954fc408a96a9260394e0
 2014-01-15 14:40:41 +00:00
dan
bfe31e7f80 Disable the flattening optimization if the sub-query is a recursive CTE. 
FossilOrigin-Name: 9472f6d820a7fb233936d9b8f7a39c9d4c4d6d73
 2014-01-15 14:17:31 +00:00
drh
f9db522fee Use the user-supplied table name in WITH RECURSIVE tables as the internal 
name of the table and the name of the table in VDBE comments.

FossilOrigin-Name: a29330238be6366444269a0b1b328475b2d01ae2
 2014-01-15 02:40:11 +00:00
dan
8ce7184bc2 Add code to handle recursive CTEs. 
FossilOrigin-Name: a5c2a54a07d35166911abc792008c05dea897742
 2014-01-14 20:14:09 +00:00
mistachkin
866b53eb5a For the Win32 VFS, defining winShmMutexHeld should be controlled by NDEBUG, not SQLITE_DEBUG. 
FossilOrigin-Name: 1e131094b522103a0829f72193b067b04e42ce82
 2014-01-14 10:17:02 +00:00
drh
c3d6ba49c6 In the command-line shell, defend against a NULL-pointer dereference in the 
case where sqlite3_column_name() returns NULL (as might happen following an
OOM error).

FossilOrigin-Name: ac15455abcb9bdb88b53129348668a1442f6899f
 2014-01-13 20:38:35 +00:00
drh
859bc542c6 For statements of just an unadorned VALUES clause, assign column names 
as "columnN" for increasing whole numbers N.

FossilOrigin-Name: 260587d2727f66d7fd65ef672ee46c92024f1d30
 2014-01-13 20:32:18 +00:00
dan
a9f5c13d0c Fix some memory leaks and crashes that could follow an OOM condition during WITH clause parsing. 
FossilOrigin-Name: 8839850c44a8938883e493eacd752fa686e542df
 2014-01-13 16:36:40 +00:00
dan
4e9119d9e8 Add code to handle non-recursive CTEs in the same way as SQL views. 
FossilOrigin-Name: a26f399ba485e8127c276c5f103ec6c555e11734
 2014-01-13 15:12:23 +00:00
dan
7d562dbe02 Update the parser so that sub-queries and CTEs may have WITH clauses. 
FossilOrigin-Name: 704d3931b855562a619769955969d439c42ca406
 2014-01-11 19:19:36 +00:00
drh
8b4718636c Parse common table expressions. But do not do anything with them (yet). 
FossilOrigin-Name: da98b7205eb3d7ec2ddbf8a8e24eee0b2ff499a5
 2014-01-11 13:22:17 +00:00
drh
f59b12fbc1 Optimizations to the SQL language grammar that result in a small size 
reduction and speed increase.

FossilOrigin-Name: cb5d1f83e0a33d546d4c0cb817ef1f8440d1f738
 2014-01-11 03:54:05 +00:00
drh
144ffe7bfb Remove unused structure definition from parse.y. 
FossilOrigin-Name: 7f1e7ae313c7625ef2623d78883dce776eecca30
 2014-01-10 20:51:16 +00:00
drh
75593d96be Allow a VALUES clause to be used any place that a SELECT statement can be 
used.

FossilOrigin-Name: c9ea7d199f06a7801ab639e7ac98ebeb98706f24
 2014-01-10 20:46:55 +00:00
drh
c740752470 Fix CREATE TABLE ... AS so that it works with column names that are empty 
strings.

FossilOrigin-Name: 632045f21c553e10f59a14c772d50d7824ca0c2c
 2014-01-10 20:38:12 +00:00
dan
9871c59a2d Fix another harmless compiler warning in unixUnfetch(). 
FossilOrigin-Name: 0484549bb82ca5246488330c8d266e429ccd19b9
 2014-01-10 16:40:21 +00:00
drh
1bcbc621df Fix harmless compiler warning in unixUnfetch(). 
FossilOrigin-Name: 618f248f4ea9fb0b6ff019a4c2cd72857389301f
 2014-01-09 13:39:07 +00:00
drh
b66e21fda5 Fix an typo that breaks the build when SQLITE_ENABLE_TREE_EXPLAIN is defined. 
FossilOrigin-Name: f461e2b3973d0fe6a7b8cb7a3aaab8a30b3e16c0
 2014-01-04 20:00:14 +00:00
drh
1c2c0b776f Avoid redundant register loads during index key generation when doing a 
DELETE or INTEGRITY_CHECK on a table with multiple indices.

FossilOrigin-Name: 8f6e6149a165f516be6395fd753e163d52ffd52e
 2014-01-04 19:27:05 +00:00
drh
61019c7883 Omit OP_Close operations that occur immediately prior to OP_Halt and which 
cannot be jumped over.

FossilOrigin-Name: 874b7e9999811c288ad41d07709f88e458d2d497
 2014-01-04 16:49:02 +00:00
drh
54e2adb5f3 Improvements to the column-cache for nested AND/OR operators. 
FossilOrigin-Name: 4e725f53131d3584319c710c8710a068989543c6
 2014-01-04 15:17:04 +00:00
drh
5426d80948 Avoid some unnecessary OP_SCopy operations when inserting into a table 
with multiple indices.

FossilOrigin-Name: 429018b19cb525a4bb0843d20955457b53900d4b
 2014-01-03 16:03:43 +00:00
drh
759e858811 Try to factor constant subcomponents of the WHERE clause out of the loop. 
FossilOrigin-Name: 9d05777fe24e1a5ce71762de38db840931ef0bc8
 2014-01-02 21:05:10 +00:00
drh
762c1c4071 Avoid unnecessary affinity transformations when building indices using 
data from a table.

FossilOrigin-Name: 10d851353c2abeadbd2852c210a7ff9f7f513e5d
 2014-01-02 19:35:30 +00:00
drh
991a198511 Be more aggressive in optimizing constant conditional expressions. 
FossilOrigin-Name: b7e39851a75b87ebca747b26a39989560fd6362b
 2014-01-02 17:57:16 +00:00
drh
b00d862139 Try to detect process ID changes due to fork() calls in os_unix.c and 
reset the PRNG when a process ID change is detected.

FossilOrigin-Name: e1eba1fb09d7db49d77928bd115b27b8002ae640
 2014-01-01 15:18:36 +00:00
drh
fe98081e18 Enhance sqlite3_randomness(N,P) such that it resets the internal PRNG 
if N is less than 1.  Subsequent calls to sqlite3_randomness() will reinitialize
the internal PRNG by calling the xRandomness() method of the default VFS.

FossilOrigin-Name: a221aa82bb5496885fd0bf76e4601443799511de
 2014-01-01 14:00:13 +00:00
drh
d9e3c267b4 Merge the latest trunk changes into the sessions branch. 
FossilOrigin-Name: cfd110bf5db2c1993a5e2ca718648bd9c17ee22c
 2013-12-24 12:09:42 +00:00
drh
73d5b8f550 Move elements of the Vdbe object that are only used during statement 
preparation out into the Parse object.

FossilOrigin-Name: c289a253c0c053ac8fc344efe138262c327d8096
 2013-12-23 19:09:07 +00:00
drh
58c960816f Remove a stray tab character. 
FossilOrigin-Name: 25b8a1c9ba77df3b7c78cbce922cb593d661696d
 2013-12-23 11:33:32 +00:00
drh
eaf4f523a5 Remove a condition that is always in the logic that handles reading 
default values for columns.

FossilOrigin-Name: 895af097e71749f423b63ece17c5a4b4dfcd164d
 2013-12-22 22:45:14 +00:00
drh
6c1de308f2 Make sure the WhereLoop.aLTerm[] array is large enough when processing 
the skip-scan optimization.  Fix for ticket [520070ec7fbaac].

FossilOrigin-Name: 46d040591f27be01b1860344f8a268797fe344f4
 2013-12-22 20:44:10 +00:00
drh
685e3c481c Avoid compiler warnings by only enabling sqlite3ErrName() when 
SQLITE_TEST is defined.

FossilOrigin-Name: 862228e50534a6b89c9498c4db664610db11485e
 2013-12-21 17:07:13 +00:00
drh
849a9d92ba Fix the ".echo on" dot-command of the shell so that it echos comments in 
addition to SQL statements and dot-commands.  Add the --explain option
to speedtest1 so that the output can be piped into the command-line shell
to show nicely-formated VDBE code for the entire test.

FossilOrigin-Name: 96397263f94256e284aae9506de1fc48fea89193
 2013-12-21 15:46:06 +00:00
drh
a47941fe42 Fix compiler harmless warnings in tclsqlite.c that appeared with GCC 4.8.x. 
FossilOrigin-Name: d93ae6833a7fca0672caf902a7b48846e54242cd
 2013-12-20 18:57:44 +00:00
drh
d42ef839bc Code simplification in sqlite3GenerateIndexKey() by making use of a subroutine 
found over in expr.c.

FossilOrigin-Name: 0026d3355340d66687a3fd4cbece28811ef1b505
 2013-12-20 18:44:35 +00:00
drh
4eded604ea Combine adjacent single-register OP_Copy instructions into a single 
multi-register OP_Copy, where possible.  Fix the Synopsis comment for
multi-register OP_Copy instructions to show the correct register ranges.

FossilOrigin-Name: 2ae22dc0cbed2feca4baf89d02aaace0331971d6
 2013-12-20 15:59:20 +00:00
drh
aed1819875 Allow any arbitrary expression as the filename in an ATTACH statement, 
including functions and subqueries.

FossilOrigin-Name: df70a1f30393b34146d6b8bf1df5a76aaf362efe
 2013-12-20 14:48:12 +00:00
drh
7e61d18eb4 Simplify the accumulator reset for aggregate query processing so that it 
uses a single multi-register OP_Null rather than a separate OP_Null for each
register.

FossilOrigin-Name: 2c7fd9b043f5f3d9d8e22dbefa84a9770ca951d0
 2013-12-20 13:11:45 +00:00
dan
1001ee8819 Do not inject OOM faults into SQLITE_FCNTL_COMMIT_PHASE_TWO file-control invocations. It causes problems for test scripts. 
FossilOrigin-Name: 8eb28d23e353139d24a8af78309d39249ab9eaf0
 2013-12-19 17:04:58 +00:00
drh
f6b1a8e1a5 Make sure errors encountered while initializing extensions such as FTS4 
get reported out from sqlite3_open().  This fixes a bug introduced by
check-in [9d347f547e7ba9].  Also remove lots of forgotten "breakpoint"
commands left in test scripts over the years.

FossilOrigin-Name: ca3fdfd41961d8d3d1e39d20dc628e8a95dabb2f
 2013-12-19 16:26:05 +00:00
drh
a021f121c9 Remove an unneeded column-cache flush in aggregate SELECT 
and an unreachable branch in the INSERT logic.

FossilOrigin-Name: ffa092e13b3781677b18418cca40e3dd1e388aed
 2013-12-19 14:34:34 +00:00
drh
edfac3456e Omit an unnecessary OP_Null opcode from UPDATE. 
FossilOrigin-Name: 72d111336c5016e5b5092dfebcd01253266a7685
 2013-12-19 02:56:01 +00:00
drh
46d03fcbfc Omit one or more pointless instructions that occur in between OP_NoConflict 
and OP_Halt.

FossilOrigin-Name: 61e2f3575c4a94f9571c28fb2bd19da84b0edceb
 2013-12-19 02:23:45 +00:00
drh
039468ef2d Remove an unnecessary column-cache flush. Add another test case to the 
speedtest1.c program to accentuate the benefit of not flushing the cache at
that point.

FossilOrigin-Name: 97fdfc6b79833011fc0c506fe5e0985c0fb1906c
 2013-12-18 16:27:48 +00:00