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Overview
| Comment: | Have sqlite3changeset_concat() return SQLITE_SCHEMA if an attempt is made to concatenate changesets based on incompatible database schemas. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | sessions |
| Files: | files | file ages | folders |
| SHA1: |
343b64517d244b75097e38342dc273eb |
| User & Date: | dan 2011-04-15 15:04:31.042 |
Context
|
2011-04-15
| ||
| 16:03 | Add tests and fixes for OOM handling in sqlite3changeset_concat(). (check-in: df0b2d21dc user: dan tags: sessions) | |
| 15:04 | Have sqlite3changeset_concat() return SQLITE_SCHEMA if an attempt is made to concatenate changesets based on incompatible database schemas. (check-in: 343b64517d user: dan tags: sessions) | |
| 12:04 | Add documentation for sqlite3changeset_concat() to sqlite3session.h. (check-in: ada9efa53a user: dan tags: sessions) | |
Changes
Changes to ext/session/session5.test.
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set c_prev $c
rename S s_prev
}
catch { s_prev delete }
}
do_execsql_test 1.0 {
CREATE TABLE t1(a PRIMARY KEY, b);
}
do_concat_test 1.1.1 {
INSERT INTO t1 VALUES(1, 'one');
} {
| > > > | 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 |
set c_prev $c
rename S s_prev
}
catch { s_prev delete }
}
#-------------------------------------------------------------------------
# Test cases session5-1.* - simple tests.
#
do_execsql_test 1.0 {
CREATE TABLE t1(a PRIMARY KEY, b);
}
do_concat_test 1.1.1 {
INSERT INTO t1 VALUES(1, 'one');
} {
|
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130 131 132 133 134 135 136 137 138 139 140 141 |
}
do_concat_test 1.2.7 {
UPDATE t1 SET b = 'eight' WHERE a = 'I';
} {
DELETE FROM t1 WHERE a = 'I';
}
db function indirect indirect
proc indirect {{x -1}} {
S indirect $x
s_prev indirect $x
}
| > > > > < | 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 |
}
do_concat_test 1.2.7 {
UPDATE t1 SET b = 'eight' WHERE a = 'I';
} {
DELETE FROM t1 WHERE a = 'I';
}
#-------------------------------------------------------------------------
# Test cases session5-2.* - more complex tests.
#
db function indirect indirect
proc indirect {{x -1}} {
S indirect $x
s_prev indirect $x
}
do_concat_test 2.1 {
CREATE TABLE abc(a, b, c PRIMARY KEY);
INSERT INTO abc VALUES(NULL, NULL, 1);
INSERT INTO abc VALUES('abcdefghijkl', NULL, 2);
} {
DELETE FROM abc WHERE c = 1;
UPDATE abc SET c = 1 WHERE c = 2;
|
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180 181 182 183 184 185 186 187 188 |
} {
SELECT indirect(1);
UPDATE abc SET a='one point five' WHERE c = 'three';
} {
SELECT indirect(0);
UPDATE abc SET a='one point six' WHERE c = 'three';
}
finish_test
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} {
SELECT indirect(1);
UPDATE abc SET a='one point five' WHERE c = 'three';
} {
SELECT indirect(0);
UPDATE abc SET a='one point six' WHERE c = 'three';
}
#-------------------------------------------------------------------------
# Test that schema incompatibilities are detected correctly.
#
# session5-3.1: Incompatible number of columns.
# session5-3.2: Incompatible PK definition.
#
proc sql_to_changeset {sql} {
sqlite3session S db main
S attach *
execsql $sql
set c [S changeset]
S delete
return $c
}
do_test 3.1 {
db close
forcedelete test.db
sqlite3 db test.db
execsql { CREATE TABLE t1(a PRIMARY KEY, b) }
set c1 [sql_to_changeset { INSERT INTO t1 VALUES(1, 2) }]
execsql {
DROP TABLE t1;
CREATE TABLE t1(a PRIMARY KEY, b, c);
}
set c2 [sql_to_changeset { INSERT INTO t1 VALUES(2, 3, 4) }]
list [catch { sqlite3changeset_concat $c1 $c2 } msg] $msg
} {1 SQLITE_SCHEMA}
do_test 3.2 {
db close
forcedelete test.db
sqlite3 db test.db
execsql { CREATE TABLE t1(a PRIMARY KEY, b) }
set c1 [sql_to_changeset { INSERT INTO t1 VALUES(1, 2) }]
execsql {
DROP TABLE t1;
CREATE TABLE t1(a, b PRIMARY KEY);
}
set c2 [sql_to_changeset { INSERT INTO t1 VALUES(2, 3) }]
list [catch { sqlite3changeset_concat $c1 $c2 } msg] $msg
} {1 SQLITE_SCHEMA}
finish_test
|
Changes to ext/session/sqlite3session.c.
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assert( pIter->apValue==0 );
sqlite3changeset_op(pIter, &zNew, &nCol, &op, &bIndirect);
if( !pTab || zNew!=pTab->zName ){
/* Search the list for a matching table */
int nNew = strlen(zNew);
for(pTab = *ppTabList; pTab; pTab=pTab->pNext){
if( 0==sqlite3_strnicmp(pTab->zName, zNew, nNew+1) ) break;
}
if( !pTab ){
pTab = sqlite3_malloc(sizeof(SessionTable));
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assert( pIter->apValue==0 );
sqlite3changeset_op(pIter, &zNew, &nCol, &op, &bIndirect);
if( !pTab || zNew!=pTab->zName ){
/* Search the list for a matching table */
int nNew = strlen(zNew);
u8 *abPK;
sqlite3changeset_pk(pIter, &abPK, 0);
for(pTab = *ppTabList; pTab; pTab=pTab->pNext){
if( 0==sqlite3_strnicmp(pTab->zName, zNew, nNew+1) ) break;
}
if( !pTab ){
pTab = sqlite3_malloc(sizeof(SessionTable));
if( !pTab ){
rc = SQLITE_NOMEM;
break;
}
memset(pTab, 0, sizeof(SessionTable));
pTab->pNext = *ppTabList;
pTab->abPK = abPK;
pTab->nCol = nCol;
*ppTabList = pTab;
}else if( pTab->nCol!=nCol || memcmp(pTab->abPK, abPK, nCol) ){
rc = SQLITE_SCHEMA;
break;
}
pTab->zName = (char *)zNew;
}
if( sessionGrowHash(pTab) ) break;
iHash = sessionChangeHash(pTab, aRec, pTab->nChange);
/* Search for existing entry. If found, remove it from the hash table.
** Code below may link it back in.
|
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