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Overview
| Comment: | Rename the internal Schema.flags field to Schema.schemaFlags. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
5ae80b3c8f032528359c8c762505ce24 |
| User & Date: | drh 2014-08-05 11:04:21 |
Context
|
2014-08-05
| ||
| 19:16 | Add the ability to evaluate IN operators as a sequence of comparisons as an alternative to the long-standing algorithm of building a lookup table. Use the new implementation in circumstances where it is likely to be faster, such as when the RHS of the IN changes between successive evaluations. check-in: 95286821 user: drh tags: trunk | |
| 11:04 | Rename the internal Schema.flags field to Schema.schemaFlags. check-in: 5ae80b3c user: drh tags: trunk | |
|
2014-08-02
| ||
| 20:44 | Remove (newly) incorrect preprocessor check to fix build on WinRT. check-in: ba782654 user: mistachkin tags: trunk | |
Changes
Changes to src/btree.c.
158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 |
}
/* If the client is reading or writing an index and the schema is
** not loaded, then it is too difficult to actually check to see if
** the correct locks are held. So do not bother - just return true.
** This case does not come up very often anyhow.
*/
if( isIndex && (!pSchema || (pSchema->flags&DB_SchemaLoaded)==0) ){
return 1;
}
/* Figure out the root-page that the lock should be held on. For table
** b-trees, this is just the root page of the b-tree being read or
** written. For index b-trees, it is the root page of the associated
** table. */
|
| |
158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 |
}
/* If the client is reading or writing an index and the schema is
** not loaded, then it is too difficult to actually check to see if
** the correct locks are held. So do not bother - just return true.
** This case does not come up very often anyhow.
*/
if( isIndex && (!pSchema || (pSchema->schemaFlags&DB_SchemaLoaded)==0) ){
return 1;
}
/* Figure out the root-page that the lock should be held on. For table
** b-trees, this is just the root page of the b-tree being read or
** written. For index b-trees, it is the root page of the associated
** table. */
|
Changes to src/build.c.
2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 |
assert( pTable->aCol==0 );
pTable->nCol = pSelTab->nCol;
pTable->aCol = pSelTab->aCol;
pSelTab->nCol = 0;
pSelTab->aCol = 0;
sqlite3DeleteTable(db, pSelTab);
assert( sqlite3SchemaMutexHeld(db, 0, pTable->pSchema) );
pTable->pSchema->flags |= DB_UnresetViews;
}else{
pTable->nCol = 0;
nErr++;
}
sqlite3SelectDelete(db, pSel);
} else {
nErr++;
|
| |
2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 |
assert( pTable->aCol==0 );
pTable->nCol = pSelTab->nCol;
pTable->aCol = pSelTab->aCol;
pSelTab->nCol = 0;
pSelTab->aCol = 0;
sqlite3DeleteTable(db, pSelTab);
assert( sqlite3SchemaMutexHeld(db, 0, pTable->pSchema) );
pTable->pSchema->schemaFlags |= DB_UnresetViews;
}else{
pTable->nCol = 0;
nErr++;
}
sqlite3SelectDelete(db, pSel);
} else {
nErr++;
|
Changes to src/callback.c.
443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 |
for(pElem=sqliteHashFirst(&temp1); pElem; pElem=sqliteHashNext(pElem)){
Table *pTab = sqliteHashData(pElem);
sqlite3DeleteTable(0, pTab);
}
sqlite3HashClear(&temp1);
sqlite3HashClear(&pSchema->fkeyHash);
pSchema->pSeqTab = 0;
if( pSchema->flags & DB_SchemaLoaded ){
pSchema->iGeneration++;
pSchema->flags &= ~DB_SchemaLoaded;
}
}
/*
** Find and return the schema associated with a BTree. Create
** a new one if necessary.
*/
|
| | |
443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 |
for(pElem=sqliteHashFirst(&temp1); pElem; pElem=sqliteHashNext(pElem)){
Table *pTab = sqliteHashData(pElem);
sqlite3DeleteTable(0, pTab);
}
sqlite3HashClear(&temp1);
sqlite3HashClear(&pSchema->fkeyHash);
pSchema->pSeqTab = 0;
if( pSchema->schemaFlags & DB_SchemaLoaded ){
pSchema->iGeneration++;
pSchema->schemaFlags &= ~DB_SchemaLoaded;
}
}
/*
** Find and return the schema associated with a BTree. Create
** a new one if necessary.
*/
|
Changes to src/sqliteInt.h.
872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 |
Hash tblHash; /* All tables indexed by name */ Hash idxHash; /* All (named) indices indexed by name */ Hash trigHash; /* All triggers indexed by name */ Hash fkeyHash; /* All foreign keys by referenced table name */ Table *pSeqTab; /* The sqlite_sequence table used by AUTOINCREMENT */ u8 file_format; /* Schema format version for this file */ u8 enc; /* Text encoding used by this database */ u16 flags; /* Flags associated with this schema */ int cache_size; /* Number of pages to use in the cache */ }; /* ** These macros can be used to test, set, or clear bits in the ** Db.pSchema->flags field. */ #define DbHasProperty(D,I,P) (((D)->aDb[I].pSchema->flags&(P))==(P)) #define DbHasAnyProperty(D,I,P) (((D)->aDb[I].pSchema->flags&(P))!=0) #define DbSetProperty(D,I,P) (D)->aDb[I].pSchema->flags|=(P) #define DbClearProperty(D,I,P) (D)->aDb[I].pSchema->flags&=~(P) /* ** Allowed values for the DB.pSchema->flags field. ** ** The DB_SchemaLoaded flag is set after the database schema has been ** read into internal hash tables. ** |
| | | | | |
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Hash tblHash; /* All tables indexed by name */ Hash idxHash; /* All (named) indices indexed by name */ Hash trigHash; /* All triggers indexed by name */ Hash fkeyHash; /* All foreign keys by referenced table name */ Table *pSeqTab; /* The sqlite_sequence table used by AUTOINCREMENT */ u8 file_format; /* Schema format version for this file */ u8 enc; /* Text encoding used by this database */ u16 schemaFlags; /* Flags associated with this schema */ int cache_size; /* Number of pages to use in the cache */ }; /* ** These macros can be used to test, set, or clear bits in the ** Db.pSchema->flags field. */ #define DbHasProperty(D,I,P) (((D)->aDb[I].pSchema->schemaFlags&(P))==(P)) #define DbHasAnyProperty(D,I,P) (((D)->aDb[I].pSchema->schemaFlags&(P))!=0) #define DbSetProperty(D,I,P) (D)->aDb[I].pSchema->schemaFlags|=(P) #define DbClearProperty(D,I,P) (D)->aDb[I].pSchema->schemaFlags&=~(P) /* ** Allowed values for the DB.pSchema->flags field. ** ** The DB_SchemaLoaded flag is set after the database schema has been ** read into internal hash tables. ** |