database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-07 02:42:48 +03:00
Code Activity

Add code to handle recursive CTEs.

Browse Source 
FossilOrigin-Name: a5c2a54a07d35166911abc792008c05dea897742
This commit is contained in:
dan
2014-01-14 20:14:09 +00:00
parent a9f5c13d0c
commit 8ce7184bc2
9 changed files with 262 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/btree.c
View File

@@ -7350,6 +7350,7 @@ static int clearDatabasePage(
int rc;
unsigned char *pCell;
int i;
int hdr;
assert( sqlite3_mutex_held(pBt->mutex) );
if( pgno>btreePagecount(pBt) ){
@@ -7358,6 +7359,7 @@ static int clearDatabasePage(
rc = getAndInitPage(pBt, pgno, &pPage, 0);
if( rc ) return rc;
hdr = pPage->hdrOffset;
for(i=0; i<pPage->nCell; i++){
pCell = findCell(pPage, i);
if( !pPage->leaf ){
@@ -7368,7 +7370,7 @@ static int clearDatabasePage(
if( rc ) goto cleardatabasepage_out;
}
if( !pPage->leaf ){
rc = clearDatabasePage(pBt, get4byte(&pPage->aData[8]), 1, pnChange);
rc = clearDatabasePage(pBt, get4byte(&pPage->aData[hdr+8]), 1, pnChange);
if( rc ) goto cleardatabasepage_out;
}else if( pnChange ){
assert( pPage->intKey );
@@ -7377,7 +7379,7 @@ static int clearDatabasePage(
if( freePageFlag ){
freePage(pPage, &rc);
}else if( (rc = sqlite3PagerWrite(pPage->pDbPage))==0 ){
zeroPage(pPage, pPage->aData[0] | PTF_LEAF);
zeroPage(pPage, pPage->aData[hdr] | PTF_LEAF);
}
cleardatabasepage_out: