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Experimental fix for resetting databases that have been deemed read-only due

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to a corrupt "read-version" header field.

FossilOrigin-Name: e2394002d02754bb45d56e805df9bc5a2ef0d14e5d94262c1f8ab7643bc27c8f
This commit is contained in:
dan
2018-07-19 11:44:02 +00:00
parent ea99a31c59
commit ea933f07b0
4 changed files with 52 additions and 9 deletions
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6
src/btree.c
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@@ -3316,6 +3316,12 @@ int sqlite3BtreeBeginTrans(Btree *p, int wrflag, int *pSchemaVersion){
}
assert( pBt->inTransaction==TRANS_WRITE || IfNotOmitAV(pBt->bDoTruncate)==0 );
if( (p->db->flags & SQLITE_ResetDatabase)
&& sqlite3PagerIsreadonly(pBt->pPager)==0
){
pBt->btsFlags &= ~BTS_READ_ONLY;
}
/* Write transactions are not possible on a read-only database */
if( (pBt->btsFlags & BTS_READ_ONLY)!=0 && wrflag ){
rc = SQLITE_READONLY;