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Overview
| Comment: | Fix a 10-year-old misguided attempt at parser performance improvement that actually made parsing slightly slower. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
3833cbac0706ecac9a641d70b786d26f |
| User & Date: | drh 2015-11-19 13:21:31 |
Context
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2015-11-19
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| 14:11 | If compiled with SQLITE_ENABLE_HIDDEN_COLUMNS, then columns in ordinary tables and views that have names beginning with "__hidden__" are omitted from the "*" expansion in SELECT statements and from the automatic list of columns following the table name in an INSERT INTO statement. check-in: 011904ca user: drh tags: trunk | |
| 13:21 | Fix a 10-year-old misguided attempt at parser performance improvement that actually made parsing slightly slower. check-in: 3833cbac user: drh tags: trunk | |
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2015-11-17
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| 21:42 | When using mmap mode on Win32, use a read-only mapping by default. Write to the database file using WriteFile(). Unless SQLITE_MMAP_READWRITE is defined, in which case use a read/write mapping and write into the file using memcpy(). check-in: 4f521b5b user: mistachkin tags: trunk | |
Changes
Changes to src/build.c.
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/* If an error occurs, we jump here */ begin_table_error: sqlite3DbFree(db, zName); return; } /* ** This macro is used to compare two strings in a case-insensitive manner. ** It is slightly faster than calling sqlite3StrICmp() directly, but ** produces larger code. ** ** WARNING: This macro is not compatible with the strcmp() family. It ** returns true if the two strings are equal, otherwise false. */ #define STRICMP(x, y) (\ sqlite3UpperToLower[*(unsigned char *)(x)]== \ sqlite3UpperToLower[*(unsigned char *)(y)] \ && sqlite3StrICmp((x)+1,(y)+1)==0 ) /* ** Add a new column to the table currently being constructed. ** ** The parser calls this routine once for each column declaration ** in a CREATE TABLE statement. sqlite3StartTable() gets called ** first to get things going. Then this routine is called for each ** column. ................................................................................ sqlite3ErrorMsg(pParse, "too many columns on %s", p->zName); return; } #endif z = sqlite3NameFromToken(db, pName); if( z==0 ) return; for(i=0; i<p->nCol; i++){ if( STRICMP(z, p->aCol[i].zName) ){ sqlite3ErrorMsg(pParse, "duplicate column name: %s", z); sqlite3DbFree(db, z); return; } } if( (p->nCol & 0x7)==0 ){ Column *aNew; |
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/* If an error occurs, we jump here */ begin_table_error: sqlite3DbFree(db, zName); return; } /* ** Add a new column to the table currently being constructed. ** ** The parser calls this routine once for each column declaration ** in a CREATE TABLE statement. sqlite3StartTable() gets called ** first to get things going. Then this routine is called for each ** column. ................................................................................ sqlite3ErrorMsg(pParse, "too many columns on %s", p->zName); return; } #endif z = sqlite3NameFromToken(db, pName); if( z==0 ) return; for(i=0; i<p->nCol; i++){ if( sqlite3_stricmp(z, p->aCol[i].zName)==0 ){ sqlite3ErrorMsg(pParse, "duplicate column name: %s", z); sqlite3DbFree(db, z); return; } } if( (p->nCol & 0x7)==0 ){ Column *aNew; |