If you search sqlite3.c for the SQLITE3_INTROSPECTION_PRAGMAS you will see in
pragma.c (or in sqlite3.c) the following code:
#ifdef SQLITE_INTROSPECTION_PRAGMAS
case PragTyp_FUNCTION_LIST: {
int i;
HashElem *j;
FuncDef *p;
pParse->nMem = 2;
for(i=0; i<SQLITE_FUNC_HASH_SZ; i++){
for(p=sqlite3BuiltinFunctions.a[i]; p; p=p->u.pHash ){
sqlite3VdbeMultiLoad(v, 1, "si", p->zName, 1);
sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
}
}
for(j=sqliteHashFirst(&db->aFunc); j; j=sqliteHashNext(j)){
p = (FuncDef*)sqliteHashData(j);
sqlite3VdbeMultiLoad(v, 1, "si", p->zName, 0);
sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
}
}
break;
#ifndef SQLITE_OMIT_VIRTUALTABLE
case PragTyp_MODULE_LIST: {
HashElem *j;
pParse->nMem = 1;
for(j=sqliteHashFirst(&db->aModule); j; j=sqliteHashNext(j)){
Module *pMod = (Module*)sqliteHashData(j);
sqlite3VdbeMultiLoad(v, 1, "s", pMod->zName);
sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
}
}
break;
#endif /* SQLITE_OMIT_VIRTUALTABLE */
case PragTyp_PRAGMA_LIST: {
int i;
for(i=0; i<ArraySize(aPragmaName); i++){
sqlite3VdbeMultiLoad(v, 1, "s", aPragmaName[i].zName);
sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
}
}
break;
#endif /* SQLITE_INTROSPECTION_PRAGMAS */
In each, the sqlite3VdbeAddOp2 should be removed. sqlite3VdbeMultiLoad, as
well as adding the data to the vdbe program also generates an OP_ResultRow
instruction ...
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-----Original Message-----
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Bart Smissaert
>Sent: Thursday, 24 August, 2017 14:53
>To: General Discussion of SQLite Database
>Subject: [sqlite] Duplicate output with pragma_list, function_list,
>module_list
>
>The pragma names and function names are duplicated with these
>pragma's.
>Is this a bug?
>
>RBS
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>sqlite-users mailing list
>sqlite-users@mailinglists.sqlite.org
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