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Commit Graph

2105 Commits

Author SHA1 Message Date
dan
6ba7ab0d25 Experimental implementation of FILTER clause for aggregate functions.
FossilOrigin-Name: 1f1ae2d6ac8dcbb62e5aa3dc17bc67d559cb565fc0d0a8c00a596075d35f8130
2019-07-02 11:56:47 +00:00
drh
d0ff601c62 Improved interface to double-quoted string literal enabling/disabling.
FossilOrigin-Name: 923cfd53fcff2fcb91530bf819d2ecb0eda3f6a27dae29c7460f9ce3a3ffce7b
2019-06-17 13:56:11 +00:00
drh
0a6873bfd6 Add SQLITE_DBCONFIG options LEGACY_ALTER_TABLE, NO_DQS_SCHEMA, and NO_DQS.
FossilOrigin-Name: 1fad20925efa70d0c242e9cba8fa55456fb07a81229c1068da84c6e27d0c0be8
2019-06-14 21:25:25 +00:00
drh
a7d6db6ac0 The affinity of the unlikely() function and its cousins should be "none".
Ticket [0c620df60bffd9ef]

FossilOrigin-Name: 614ecb0af47038848e8ba2aed6b92db6f33ddc4aea6361795dbde440380f5a35
2019-06-11 21:02:15 +00:00
drh
8e34e4061b Add the new sqlite3ExprUnmapAndDelete() function and use it in place of
separate calls to sqlite3RenameExprUnmap() and sqlite3ExprDelete().

FossilOrigin-Name: 36ea13e0a851a749c9ef292377ecd82dbd4797d38df907b362487fa234c98ca5
2019-06-11 10:43:56 +00:00
drh
05921223c2 Smaller and faster sqlite3IsNaN() implementation makes deserialization of
floating point values much faster.

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2019-05-30 00:46:37 +00:00
drh
8a3884efae Much faster implementation of applyNumericAffinity() by avoiding some
unnecessary calls to sqlite3Atoi64().

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2019-05-29 21:18:27 +00:00
drh
acd6bb5fe4 Improvements to the automatic compile-time selection of byte-order, as
suggested on the mailing list by Seb Kemper.

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2019-05-20 18:43:57 +00:00
drh
3e4f6c43b8 A minor variation on check-in [1685610ef8e0dc] which (hopefully) makes the
logic a little easier to follow.  Also disallows the use of the double-quoted
string hack in the query expression used for VACUUM INTO, which is not
strictly required, but moves us toward the goal of disallowing the double-quoted
string hack everywhere.

FossilOrigin-Name: 3e1b55f3ab85710ed81574904718205c7370b5f0b5a41029e961486d2e3f37c7
2019-05-20 18:35:49 +00:00
dan
0d92571d65 Disallow string constants enclosed in double-quotes within new CREATE TABLE and CREATE INDEX statements. It is still possible to enclose column names in double-quotes, and existing database schemas that use double-quotes for strings can still be loaded. This addresses ticket [9b78184b].
FossilOrigin-Name: 1685610ef8e0dc9218b02461ceab14dc6114f4f5ef7fcda0da395094aff443e1
2019-05-20 17:14:25 +00:00
dan
8ac02a94ab Update the sqlite3ExprCompare() routine so that it does not think "? IS NOT TRUE" is the same as "? IS TRUE". Fix for [d3e7f2ba5b3].
FossilOrigin-Name: 99eba69b3a64741c69d167bf7a05dbe138c9e7faecc54a1b8d8220cb23902830
2019-05-20 10:36:15 +00:00
drh
bf9ff256fe Disable index seek optimizations on REINDEX when the order of primary keys
in the index differs from the main table.
Fix for ticket [bba7b69f9849b5bf11b4].

FossilOrigin-Name: f7aadfab3bb8eb8eb2cd62dc8a6823538387b3329f1efc23ef75482488109478
2019-05-14 00:43:13 +00:00
drh
0c8f40389e Add the SQLITE_TESTCTRL_RESULT_INTREAL test-control and use it to create
the intreal() SQL function in testfixture.  Write a few simple tests to
prove this all works.  TH3 will hold most of the INTREAL tests, probably.

FossilOrigin-Name: c9838731325e0ca73bd8784c10c74ae043fed7861e6de269fd90e29fa4a19955
2019-05-03 21:17:28 +00:00
drh
17180fca9d Improved optimization of the AND and OR operators.
FossilOrigin-Name: 0fbd154eb419b57b9c064c1f47346835d6324388b966b73f8a0122de065f08b1
2019-04-19 17:26:19 +00:00
drh
ad31727fc6 Use macros to determine if an expression is always true or always false.
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2019-04-19 16:21:51 +00:00
drh
d5c851c1cb Streamline the processing of the AND operator. Slightly smaller and faster.
FossilOrigin-Name: 7713996aa99ce6dd35b5a2db74dd26658fb8d9817169b2a7531cdef6edb41403
2019-04-19 13:38:34 +00:00
drh
c3dcdba387 Improved reporting of SQLITE_TOOBIG errors while parsing.
FossilOrigin-Name: ea2d4b65e20e44e19219c821bf68e97ff3af1760b3b4762250d020ba2a5a6343
2019-04-09 21:32:46 +00:00
drh
4e61e88348 Only preserve rowid values for VACUUM INTO. Keep the legacy behavior of
renumbering rowids for ordinary VACUUM.

FossilOrigin-Name: 13a0ea6466b051ea5281865ed5285b8b5a99ec4307f400c5f7b03692723f1cd1
2019-04-04 14:00:23 +00:00
drh
94809086e5 Use a separate bit on db->dbOptFlags to disable the xInverse optimization on
window functions, rather than reusing the query-flattener disable bit.

FossilOrigin-Name: bc0fb1c324be2fd668bc4398c7d364b7e3c5a98537fe5fb58a125b66f3e6d041
2019-04-02 17:45:56 +00:00
drh
d137f4e6e5 Recover a some of the performance lost by window function alias fix two
check-ins back.

FossilOrigin-Name: 965cbcea117835d2c6d2ec58c8025b227f491c35805e282cb31228436bc6bec1
2019-03-29 01:15:11 +00:00
dan
4ded26a53c Prevent aliases of window functions expressions from being used as arguments to aggregate or other window functions.
FossilOrigin-Name: 1e16d3e8fc60d39ca3899759ff15d355fdd7d3e23b325d8d2b0f954e11ce8dce
2019-03-28 16:15:05 +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
dan
bf84515a2b In order to identify the first row of each partition, check if the rowid in the ephemeral table is 1 instead of using a dedicated flag register.
FossilOrigin-Name: f2d5f7a24c7aa483c579706c5bd7268a74da6d53025d78fa8642908c2aed1707
2019-03-16 10:15:24 +00:00
dan
d35300f9b6 Parse EXCLUDE clauses in window frames. They do not yet work.
FossilOrigin-Name: d03c7533a1e993f1b12392a5193b2127484307b27072236a1255e7a30849a381
2019-03-14 20:53:21 +00:00
dan
a0f6b83300 Add things to this branch that will be required to support the EXCLUDE clause.
FossilOrigin-Name: 7d66cd2013206ebad50c7cdb7dab9211fa8b47f5cb7067dcb314b3e0180875f8
2019-03-14 16:36:20 +00:00
dan
b6f2deac3c Avoid allocating excessive registers for the PARTITION BY expressions when processing window functions.
FossilOrigin-Name: 180be266238e18c01f8bd52c75dd9aa3e26e553620258141cd95189a0ae59ddb
2019-03-13 17:20:27 +00:00
dan
cc7a850f2e Remove "cache mode" from the window frame code generator. Handle the same cases by editing the window frame specification itself.
FossilOrigin-Name: 081263538332bb9c07e62630629007ccbba31bef5dc890f60b4ba58a355f70ac
2019-03-11 19:50:54 +00:00
dan
b33487b0b6 Improvements to the way built-in window functions are handled.
FossilOrigin-Name: e8eee566dfca6f4c8af074731dfe91f7fbcd9ca72f0303235b52e4e2e80d5b71
2019-03-06 17:12:32 +00:00
dan
4e72e62f3b Merge trunk changes into this branch.
FossilOrigin-Name: 9b4d561f68febdab6624d8c567fb4357bf67dda500664cf708d16a76f37b8ec1
2019-03-04 21:08:53 +00:00
dan
680f6e8e2e Support some "ROWS BETWEEN N PRECEDING AND M FOLLOWING" window functions without caching entire partitions.
FossilOrigin-Name: e7a91f12282afb5d5d7d78397a11d18e0268ee0c931d85e21fce00d13929494e
2019-03-04 21:07:11 +00:00
drh
50ef6716d2 Make all ephemeral tables built to hold the RHS of an IN operator be
index-btrees, never table-btrees, regardless of whether or not they are
used as IN_INDEX_LOOP or IN_INDEX_MEMBERSHIP.  That way, the same ephmerial
table can be reused for both cases.

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2019-02-22 23:29:56 +00:00
dan
e7c9ca41b2 Add support for chaining of WINDOW definitions.
FossilOrigin-Name: c155125fd5dddb438c09d40f5137c47d88defb7a6ede4261f09d7bdaad250d37
2019-02-16 17:27:51 +00:00
drh
1cf197583d Give the sqlite3 object a pointer to the current Parse so that if an OOM
occurs, it can automatically set the Parse.rc value to SQLITE_NOMEM.  This
avoids a frequent extra test of db.mallocFailed in the innermost parser loop.

FossilOrigin-Name: 5c6638040b3017c6be016441422d965a3ca00dd6ae1f78cadc0b54562978f64e
2019-02-08 14:55:30 +00:00
drh
e5989723ba Honor key query parameters for SEE on the URI filename for ATTACH
and VACUUM INTO.

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2019-02-02 15:59:49 +00:00
drh
23a885956e Add the SQLITE_CONFIG_MEMDB_MAXSIZE configuration option for configuring
the default maximum size of an in-memory database created using
sqlite3_deserialize().  This is necessary to make the interface reasonably
testable.

FossilOrigin-Name: cb72ee0478ce98c48aae059fd5de4e36caf2b8c953e08fcb799bfd119ad46b73
2019-01-31 15:38:53 +00:00
drh
9b747068ba Improvements to "PRAGMA parser_trace=ON": Make it a flag pragma, and then
use the flag to show the complete SQL text at the beginning of the parse.

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2019-01-31 01:39:01 +00:00
drh
8d40673c84 Detect if two indexes of the same table share a common rootpage while
parsing the schema, and throw an error immediately.

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2019-01-30 18:33:33 +00:00
drh
29c992cb04 Revamp the SrcList allocator routines to be methods of Parse instead of
being methods of the "sqlite3" object, so that they can leave better error
messages when the SrcList object grows too large.

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2019-01-17 15:40:41 +00:00
drh
51d35b0fa9 The keywords TRUE and FALSE should only act as boolean literal values if
unquoted.

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2019-01-11 13:32:23 +00:00
drh
5f913ecb62 Use the new SQLITE_IDXTYPE_IPK values (3) on Index.idxType to indicate the
fake INTEGER PRIMARY KEY index used during query planning.

FossilOrigin-Name: e22d2f905fe840bea51b536ebedc9b637190ea0a37f16559668d99a61e971411
2019-01-10 13:56:08 +00:00
drh
885eeb676b Enhance the ALTER TABLE RENAME COLUMN feature so that it works on tables
that have redundant UNIQUE and/or PRIMARY KEY constraints.
Fix for ticket [bc8d94f0fbd633fd9a051e3]

FossilOrigin-Name: f09aa3248e2b4a32ff5b5d37084cb2a27445322cb06a3354cef723f4f0b2cd34
2019-01-09 02:02:24 +00:00
drh
6b86e51eea If the OP_ParseSchema opcode with a non-NULL P4 operand does not parse any
rows out of the sqlite_master table, that indicates that the sqlite_master
table is corrupt, so raise an SQLITE_CORRUPT error.

FossilOrigin-Name: 598d7358e7329f0de6e3defc217665909e46874258ac29592ee2fd53e6411cda
2019-01-05 21:09:37 +00:00
drh
ee751fab4c Raise an error if the argument to VACUUM INTO is an identifier.
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2019-01-02 14:34:46 +00:00
drh
0de6efe59e Merge enhancements and bug fixes from trunk.
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2018-12-31 18:30:41 +00:00
drh
d1d158bf5a Additional small performance increase and size reduction to the
sqlite3VdbeMakeLabel() mechanism.

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2018-12-29 14:23:22 +00:00
drh
ec4ccdbcb1 A new implementation of sqlite3VdbeMakeLabel() is faster and makes fewer
memory allocations by deferring memory allocation until 
sqlite3VdbeResolveLabel() is called, at which point the code generator has
a better idea of how big the relocation table needs to be.
The sqlite3VdbeMakeLabel() routine now takes a Parse* parameter instead of
Vdbe*.

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2018-12-29 02:26:59 +00:00
drh
01e92df41e Merge performance enhancements from trunk.
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2018-12-28 21:32:35 +00:00
drh
b6991796b4 Move the nOpAlloc field from Parse into Vdbe to avoid an extra pointer
deference on the fast path in sqlite3VdbeAddOp3().

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2018-12-28 20:14:03 +00:00
drh
2c04131ca7 Experimental code that tries to put the computation of subqueries inside a
subroutine, and reuse that subroutine if the same subquery is evaluated more
than once.  Current code does not work for CHECK constraints.

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2018-12-24 02:34:49 +00:00
drh
85bcdce270 Split the code generation for the RHS of IN operators and for SELECT and
EXISTS expressions into two separate subroutines, because there is now little
commonality between those to functions. This is intended to help make the
code easier to read and maintain.

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2018-12-23 21:27:29 +00:00