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Add the new sqlite3.mDbFlags field. Factor out bits of sqlite3.flags that

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do not interact with PRAGMA statements into sqlite3.mDbFlags.

FossilOrigin-Name: 3808a00f06d372cc531da039d97bd974e4a6576a30cf63bf562f83f186b313b3
This commit is contained in:
drh
2017-07-26 19:59:13 +00:00
parent 61ffb2cda6
commit 8257aa8dbe
12 changed files with 71 additions and 65 deletions
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14
src/alter.c
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@@ -403,9 +403,9 @@ void sqlite3AlterRenameTable(
char *zWhere = 0; /* Where clause to locate temp triggers */
#endif
VTable *pVTab = 0; /* Non-zero if this is a v-tab with an xRename() */
int savedDbFlags; /* Saved value of db->flags */
u32 savedDbFlags; /* Saved value of db->mDbFlags */
savedDbFlags = db->flags;
savedDbFlags = db->mDbFlags;
if( NEVER(db->mallocFailed) ) goto exit_rename_table;
assert( pSrc->nSrc==1 );
assert( sqlite3BtreeHoldsAllMutexes(pParse->db) );
@@ -414,7 +414,7 @@ void sqlite3AlterRenameTable(
if( !pTab ) goto exit_rename_table;
iDb = sqlite3SchemaToIndex(pParse->db, pTab->pSchema);
zDb = db->aDb[iDb].zDbSName;
db->flags |= SQLITE_PreferBuiltin;
db->mDbFlags |= DBFLAG_PreferBuiltin;
/* Get a NULL terminated version of the new table name. */
zName = sqlite3NameFromToken(db, pName);
@@ -579,7 +579,7 @@ void sqlite3AlterRenameTable(
exit_rename_table:
sqlite3SrcListDelete(db, pSrc);
sqlite3DbFree(db, zName);
db->flags = savedDbFlags;
db->mDbFlags = savedDbFlags;
}
/*
@@ -680,11 +680,11 @@ void sqlite3AlterFinishAddColumn(Parse *pParse, Token *pColDef){
zCol = sqlite3DbStrNDup(db, (char*)pColDef->z, pColDef->n);
if( zCol ){
char *zEnd = &zCol[pColDef->n-1];
int savedDbFlags = db->flags;
u32 savedDbFlags = db->mDbFlags;
while( zEnd>zCol && (*zEnd==';' || sqlite3Isspace(*zEnd)) ){
*zEnd-- = '\0';
}
db->flags |= SQLITE_PreferBuiltin;
db->mDbFlags |= DBFLAG_PreferBuiltin;
sqlite3NestedParse(pParse,
"UPDATE \"%w\".%s SET "
"sql = substr(sql,1,%d) || ', ' || %Q || substr(sql,%d) "
@@ -693,7 +693,7 @@ void sqlite3AlterFinishAddColumn(Parse *pParse, Token *pColDef){
zTab
);
sqlite3DbFree(db, zCol);
db->flags = savedDbFlags;
db->mDbFlags = savedDbFlags;
}
/* Make sure the schema version is at least 3. But do not upgrade