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Add to the foreign_key_check pragma an extra output column "parent" that

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contains the name of the parent table for the constraint that failed.

FossilOrigin-Name: 97f7f7377259ecf562019f62ebed0897cfae236e
This commit is contained in:
drh
2012-12-17 20:57:15 +00:00
parent 9148defa61
commit 4b4b473a1e
4 changed files with 17 additions and 15 deletions
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13
src/pragma.c
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@@ -1132,14 +1132,15 @@ void sqlite3Pragma(
if( sqlite3ReadSchema(pParse) ) goto pragma_out;
regResult = pParse->nMem+1;
pParse->nMem += 3;
pParse->nMem += 4;
regKey = ++pParse->nMem;
regRow = ++pParse->nMem;
v = sqlite3GetVdbe(pParse);
sqlite3VdbeSetNumCols(v, 3);
sqlite3VdbeSetNumCols(v, 4);
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "table", SQLITE_STATIC);
sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "rowid", SQLITE_STATIC);
sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "fkid", SQLITE_STATIC);
sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "parent", SQLITE_STATIC);
sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "fkid", SQLITE_STATIC);
sqlite3CodeVerifySchema(pParse, iDb);
k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash);
while( k ){
@@ -1211,8 +1212,10 @@ void sqlite3Pragma(
sqlite3VdbeAddOp4Int(v, OP_Found, i, addrOk, regKey, 0);
}
sqlite3VdbeAddOp2(v, OP_Rowid, 0, regResult+1);
sqlite3VdbeAddOp2(v, OP_Integer, i-1, regResult+2);
sqlite3VdbeAddOp2(v, OP_ResultRow, regResult, 3);
sqlite3VdbeAddOp4(v, OP_String8, 0, regResult+2, 0,
pFK->zTo, P4_TRANSIENT);
sqlite3VdbeAddOp2(v, OP_Integer, i-1, regResult+3);
sqlite3VdbeAddOp2(v, OP_ResultRow, regResult, 4);
sqlite3VdbeResolveLabel(v, addrOk);
}
sqlite3VdbeAddOp2(v, OP_Next, 0, addrTop+1);