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Overview
| Comment: | Merge the LEFT JOIN query flattener fixes from 3.19.2. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
6513e4a121e32df7e5cd95f47cdf8049 |
| User & Date: | drh 2017-05-25 17:27:52 |
Context
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2017-05-25
| ||
| 21:35 | Small performance increase and size decrease in the btreeInitPage() routine. (check-in: 6f415833 user: drh tags: trunk) | |
| 17:27 | Merge the LEFT JOIN query flattener fixes from 3.19.2. (check-in: 6513e4a1 user: drh tags: trunk) | |
| 16:50 | Version 3.19.2 (check-in: edb4e819 user: drh tags: release, branch-3.19, version-3.19.2) | |
| 00:08 | The TK_IF_NULL_ROW expression node must be treated as a variable that references the table Expr.iTable. Proposed fix for ticket [7fde638e94287d2c]. (check-in: 77fc2301 user: drh tags: trunk) | |
Changes
Changes to src/select.c.
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*/
if( (pSubitem->fg.jointype & JT_OUTER)!=0 ){
isLeftJoin = 1;
if( pSubSrc->nSrc>1 || isAgg ){
return 0; /* Restriction (3) */
}
}
/* Restriction 17: If the sub-query is a compound SELECT, then it must
** use only the UNION ALL operator. And none of the simple select queries
** that make up the compound SELECT are allowed to be aggregate or distinct
** queries.
*/
if( pSub->pPrior ){
................................................................................
}
assert( pParent->pOrderBy==0 );
assert( pSub->pPrior==0 );
pParent->pOrderBy = pOrderBy;
pSub->pOrderBy = 0;
}
pWhere = sqlite3ExprDup(db, pSub->pWhere, 0);
if( isLeftJoin ){
setJoinExpr(pWhere, iNewParent);
}
if( subqueryIsAgg ){
assert( pParent->pHaving==0 );
pParent->pHaving = pParent->pWhere;
pParent->pWhere = pWhere;
pParent->pHaving = sqlite3ExprAnd(db,
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*/
if( (pSubitem->fg.jointype & JT_OUTER)!=0 ){
isLeftJoin = 1;
if( pSubSrc->nSrc>1 || isAgg ){
return 0; /* Restriction (3) */
}
}
#ifdef SQLITE_EXTRA_IFNULLROW
else if( iFrom>0 && !isAgg ){
/* Setting isLeftJoin to -1 causes OP_IfNullRow opcodes to be generated for
** every reference to any result column from subquery in a join, even though
** they are not necessary. This will stress-test the OP_IfNullRow opcode. */
isLeftJoin = -1;
}
#endif
/* Restriction 17: If the sub-query is a compound SELECT, then it must
** use only the UNION ALL operator. And none of the simple select queries
** that make up the compound SELECT are allowed to be aggregate or distinct
** queries.
*/
if( pSub->pPrior ){
................................................................................
}
assert( pParent->pOrderBy==0 );
assert( pSub->pPrior==0 );
pParent->pOrderBy = pOrderBy;
pSub->pOrderBy = 0;
}
pWhere = sqlite3ExprDup(db, pSub->pWhere, 0);
if( isLeftJoin>0 ){
setJoinExpr(pWhere, iNewParent);
}
if( subqueryIsAgg ){
assert( pParent->pHaving==0 );
pParent->pHaving = pParent->pWhere;
pParent->pWhere = pWhere;
pParent->pHaving = sqlite3ExprAnd(db,
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Changes to test/releasetest.tcl.
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&& $target!="fuzzoomtest" && !$::BUILDONLY && $::QUICK<2} {
set debug_idx [lsearch -glob $config_options -DSQLITE_DEBUG*]
set xtarget $target
regsub -all {fulltest[a-z]*} $xtarget test xtarget
regsub -all {fuzzoomtest} $xtarget fuzztest xtarget
if {$debug_idx < 0} {
incr NTEST
append config_options " -DSQLITE_DEBUG=1"
add_test_suite all "${zConfig}_debug" $xtarget $config_options
} else {
incr NTEST
regsub { *-DSQLITE_MEMDEBUG[^ ]* *} $config_options { } config_options
regsub { *-DSQLITE_DEBUG[^ ]* *} $config_options { } config_options
add_test_suite all "${zConfig}_ndebug" $xtarget $config_options
}
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| |
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&& $target!="fuzzoomtest" && !$::BUILDONLY && $::QUICK<2} {
set debug_idx [lsearch -glob $config_options -DSQLITE_DEBUG*]
set xtarget $target
regsub -all {fulltest[a-z]*} $xtarget test xtarget
regsub -all {fuzzoomtest} $xtarget fuzztest xtarget
if {$debug_idx < 0} {
incr NTEST
append config_options " -DSQLITE_DEBUG=1 -DSQLITE_EXTRA_IFNULLROW=1"
add_test_suite all "${zConfig}_debug" $xtarget $config_options
} else {
incr NTEST
regsub { *-DSQLITE_MEMDEBUG[^ ]* *} $config_options { } config_options
regsub { *-DSQLITE_DEBUG[^ ]* *} $config_options { } config_options
add_test_suite all "${zConfig}_ndebug" $xtarget $config_options
}
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