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When creating a new virtual table, ensure that the OP_ParseSchema opcode

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processes the correct entry in the sqlite_master table even if there is
a second entry with the same name and table values due to database corruption
and the use of writable_schema=ON.  Dbsqlfuzz find.

FossilOrigin-Name: 4dbb6e1cb094f3428c74ea8bdd86ab63341fecce978a062968ca01423f382e90
This commit is contained in:
drh
2019-12-21 19:37:09 +00:00
parent b0cbcd0edf
commit f4f31df02d
4 changed files with 10 additions and 10 deletions
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4
src/vtab.c
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@@ -484,13 +484,13 @@ void sqlite3VtabFinishParse(Parse *pParse, Token *pEnd){
zStmt,
pParse->regRowid
);
sqlite3DbFree(db, zStmt);
v = sqlite3GetVdbe(pParse);
sqlite3ChangeCookie(pParse, iDb);
sqlite3VdbeAddOp0(v, OP_Expire);
zWhere = sqlite3MPrintf(db, "name='%q' AND type='table'", pTab->zName);
zWhere = sqlite3MPrintf(db, "name=%Q AND sql=%Q", pTab->zName, zStmt);
sqlite3VdbeAddParseSchemaOp(v, iDb, zWhere);
sqlite3DbFree(db, zStmt);
iReg = ++pParse->nMem;
sqlite3VdbeLoadString(v, iReg, pTab->zName);