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Overview
| Comment: | Omit the optimization that reduces the column-count on rowid-table cursors when the table has generated columns, because we do not know what columns the generator expressions might try to access. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
e6c96ed91e7a96d2bd30ea9df132644a |
| User & Date: | drh 2019-11-01 15:19:24.070 |
Context
|
2019-11-01
| ||
| 16:08 | Add another missing column number translation to the foreign key logic. (check-in: 32df5edcfe user: drh tags: trunk) | |
| 15:19 | Omit the optimization that reduces the column-count on rowid-table cursors when the table has generated columns, because we do not know what columns the generator expressions might try to access. (check-in: e6c96ed91e user: drh tags: trunk) | |
| 13:37 | Fix an fts3 assert() that could fail when operating on a database containing corrupt records. (check-in: 7c52f5478f user: dan tags: trunk) | |
Changes
Changes to src/where.c.
| ︙ | ︙ | |||
5010 5011 5012 5013 5014 5015 5016 |
op = OP_OpenWrite;
pWInfo->aiCurOnePass[0] = pTabItem->iCursor;
};
sqlite3OpenTable(pParse, pTabItem->iCursor, iDb, pTab, op);
assert( pTabItem->iCursor==pLevel->iTabCur );
testcase( pWInfo->eOnePass==ONEPASS_OFF && pTab->nCol==BMS-1 );
testcase( pWInfo->eOnePass==ONEPASS_OFF && pTab->nCol==BMS );
| | > > > > > > | 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024 5025 5026 5027 5028 5029 5030 |
op = OP_OpenWrite;
pWInfo->aiCurOnePass[0] = pTabItem->iCursor;
};
sqlite3OpenTable(pParse, pTabItem->iCursor, iDb, pTab, op);
assert( pTabItem->iCursor==pLevel->iTabCur );
testcase( pWInfo->eOnePass==ONEPASS_OFF && pTab->nCol==BMS-1 );
testcase( pWInfo->eOnePass==ONEPASS_OFF && pTab->nCol==BMS );
if( pWInfo->eOnePass==ONEPASS_OFF
&& pTab->nCol<BMS
&& (pTab->tabFlags & (TF_HasGenerated|TF_WithoutRowid))==0
){
/* If we know that only a prefix of the record will be used,
** it is advantageous to reduce the "column count" field in
** the P4 operand of the OP_OpenRead/Write opcode. */
Bitmask b = pTabItem->colUsed;
int n = 0;
for(; b; b=b>>1, n++){}
sqlite3VdbeChangeP4(v, -1, SQLITE_INT_TO_PTR(n), P4_INT32);
assert( n<=pTab->nCol );
}
#ifdef SQLITE_ENABLE_CURSOR_HINTS
|
| ︙ | ︙ |
Changes to test/gencol1.test.
| ︙ | ︙ | |||
171 172 173 174 175 176 177 178 179 |
);
PRAGMA foreign_keys = true;
INSERT INTO t0(c0,c2,c3) VALUES(0,0,1);
} {}
do_catchsql_test gencol1-4.110 {
REPLACE INTO t0(c0,c2,c3) VALUES(0,0,0),(0,0,0);
} {1 {FOREIGN KEY constraint failed}}
finish_test
| > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 |
);
PRAGMA foreign_keys = true;
INSERT INTO t0(c0,c2,c3) VALUES(0,0,1);
} {}
do_catchsql_test gencol1-4.110 {
REPLACE INTO t0(c0,c2,c3) VALUES(0,0,0),(0,0,0);
} {1 {FOREIGN KEY constraint failed}}
# 2019-11-01 Problem found while adding new foreign key test cases in TH3.
db close
sqlite3 db :memory:
do_execsql_test gencol1-5.100 {
PRAGMA foreign_keys=ON;
CREATE TABLE t1(
gcb AS (b*1),
a INTEGER PRIMARY KEY,
gcc AS (c+0),
b UNIQUE,
gca AS (1*a+0),
c UNIQUE
) WITHOUT ROWID;
INSERT INTO t1 VALUES(1,2,3);
INSERT INTO t1 VALUES(4,5,6);
INSERT INTO t1 VALUES(7,8,9);
CREATE TABLE t1a(
gcx AS (x+0) REFERENCES t1(a) ON DELETE CASCADE,
id,
x,
gcid AS (1*id)
);
INSERT INTO t1a VALUES(1, 1);
INSERT INTO t1a VALUES(2, 4);
INSERT INTO t1a VALUES(3, 7);
DELETE FROM t1 WHERE b=5;
SELECT id,x,'|' FROM t1a ORDER BY id;
} {1 1 | 3 7 |}
finish_test
|