Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Add the --upsert option to the wordcount test program. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: | ee1e750baaf4c66b4e1f103d8b80362f |
| User & Date: | drh 2018-04-19 16:52:37 |
Context
|
2018-04-19
| ||
| 20:18 | Avoid unnecessary OP_Goto instructions on an upsert of a table that only has a single secondary index. Leaf check-in: 97dd21ab user: drh tags: upsert-opt | |
| 20:06 | Modify a test case in zipfile2.test to take into account that with some platform/file-system combinations it is possible to fopen() and fread() (but not fwrite()) a directory. check-in: 893e6089 user: dan tags: trunk | |
| 16:52 | Add the --upsert option to the wordcount test program. check-in: ee1e750b user: drh tags: trunk | |
| 16:14 | Add the ext/misc/templatevtab.c template for virtual tables. This is a work-in-progress as it still needs improvements to the comments in order to be useful as a template. check-in: 22358fb5 user: drh tags: trunk | |
Changes
Changes to test/wordcount.c.
24 25 26 27 28 29 30 31 32 33 34 35 36 37 .. 86 87 88 89 90 91 92 93 94 95 96 97 98 99 ... 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 ... 288 289 290 291 292 293 294 295 296 297 298 299 300 301 ... 463 464 465 466 467 468 469 470 471 472 473 474 475 476 |
** (1) INSERT OR IGNORE INTO wordcount VALUES($new,0) ** (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new ** ** Replace mode means: ** (1) REPLACE INTO wordcount ** VALUES($new,ifnull((SELECT cnt FROM wordcount WHERE word=$new),0)+1); ** ** Select mode means: ** (1) SELECT 1 FROM wordcount WHERE word=$new ** (2) INSERT INTO wordcount VALUES($new,1) -- if (1) returns nothing ** (3) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new --if (1) return TRUE ** ** Delete mode means: ** (1) DELETE FROM wordcount WHERE word=$new ................................................................................ " --select Use SELECT mode\n" " --stats Show sqlite3_status() results at the end.\n" " --summary Show summary information on the collected data.\n" " --tag NAME Tag all output using NAME. Use only stdout.\n" " --timer Time the operation of this program\n" " --trace Enable sqlite3_trace() output.\n" " --update Use UPDATE mode\n" " --without-rowid Use a WITHOUT ROWID table to store the words.\n" ; /* Output tag */ char *zTag = "--"; /* Return the current wall-clock time */ ................................................................................ sqlite3_result_text(context, zResult, -1, SQLITE_TRANSIENT); } } /* Define operating modes */ #define MODE_INSERT 0 #define MODE_REPLACE 1 #define MODE_SELECT 2 #define MODE_UPDATE 3 #define MODE_DELETE 4 #define MODE_QUERY 5 #define MODE_COUNT 6 #define MODE_ALL (-1) /* Mode names */ static const char *azMode[] = { "--insert", "--replace", "--select", "--update", "--delete", "--query" }; /* ................................................................................ const char *z = argv[i]; if( z[0]=='-' ){ do{ z++; }while( z[0]=='-' ); if( strcmp(z,"without-rowid")==0 ){ useWithoutRowid = 1; }else if( strcmp(z,"replace")==0 ){ iMode = MODE_REPLACE; }else if( strcmp(z,"select")==0 ){ iMode = MODE_SELECT; }else if( strcmp(z,"insert")==0 ){ iMode = MODE_INSERT; }else if( strcmp(z,"update")==0 ){ iMode = MODE_UPDATE; }else if( strcmp(z,"delete")==0 ){ ................................................................................ rc = sqlite3_prepare_v2(db, "REPLACE INTO wordcount(word,cnt)" "VALUES(?1,coalesce((SELECT cnt FROM wordcount WHERE word=?1),0)+1)", -1, &pInsert, 0); if( rc ) fatal_error("Could not prepare the REPLACE statement: %s\n", sqlite3_errmsg(db)); } if( iMode2==MODE_DELETE ){ rc = sqlite3_prepare_v2(db, "DELETE FROM wordcount WHERE word=?1", -1, &pDelete, 0); if( rc ) fatal_error("Could not prepare the DELETE statement: %s\n", sqlite3_errmsg(db)); } |
> > > > > > | | | | | > > > > > > > > > > > |
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 .. 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 ... 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 ... 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 ... 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 |
** (1) INSERT OR IGNORE INTO wordcount VALUES($new,0) ** (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new ** ** Replace mode means: ** (1) REPLACE INTO wordcount ** VALUES($new,ifnull((SELECT cnt FROM wordcount WHERE word=$new),0)+1); ** ** Upsert mode means: ** (1) INSERT INTO wordcount VALUES($new,1) ** ON CONFLICT(word) DO UPDATE SET cnt=cnt+1 ** ** Select mode means: ** (1) SELECT 1 FROM wordcount WHERE word=$new ** (2) INSERT INTO wordcount VALUES($new,1) -- if (1) returns nothing ** (3) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new --if (1) return TRUE ** ** Delete mode means: ** (1) DELETE FROM wordcount WHERE word=$new ................................................................................ " --select Use SELECT mode\n" " --stats Show sqlite3_status() results at the end.\n" " --summary Show summary information on the collected data.\n" " --tag NAME Tag all output using NAME. Use only stdout.\n" " --timer Time the operation of this program\n" " --trace Enable sqlite3_trace() output.\n" " --update Use UPDATE mode\n" " --upsert Use UPSERT mode\n" " --without-rowid Use a WITHOUT ROWID table to store the words.\n" ; /* Output tag */ char *zTag = "--"; /* Return the current wall-clock time */ ................................................................................ sqlite3_result_text(context, zResult, -1, SQLITE_TRANSIENT); } } /* Define operating modes */ #define MODE_INSERT 0 #define MODE_REPLACE 1 #define MODE_UPSERT 2 #define MODE_SELECT 3 #define MODE_UPDATE 4 #define MODE_DELETE 5 #define MODE_QUERY 6 #define MODE_COUNT 7 #define MODE_ALL (-1) /* Mode names */ static const char *azMode[] = { "--insert", "--replace", "--upsert", "--select", "--update", "--delete", "--query" }; /* ................................................................................ const char *z = argv[i]; if( z[0]=='-' ){ do{ z++; }while( z[0]=='-' ); if( strcmp(z,"without-rowid")==0 ){ useWithoutRowid = 1; }else if( strcmp(z,"replace")==0 ){ iMode = MODE_REPLACE; }else if( strcmp(z,"upsert")==0 ){ iMode = MODE_UPSERT; }else if( strcmp(z,"select")==0 ){ iMode = MODE_SELECT; }else if( strcmp(z,"insert")==0 ){ iMode = MODE_INSERT; }else if( strcmp(z,"update")==0 ){ iMode = MODE_UPDATE; }else if( strcmp(z,"delete")==0 ){ ................................................................................ rc = sqlite3_prepare_v2(db, "REPLACE INTO wordcount(word,cnt)" "VALUES(?1,coalesce((SELECT cnt FROM wordcount WHERE word=?1),0)+1)", -1, &pInsert, 0); if( rc ) fatal_error("Could not prepare the REPLACE statement: %s\n", sqlite3_errmsg(db)); } if( iMode2==MODE_UPSERT ){ rc = sqlite3_prepare_v2(db, "INSERT INTO wordcount(word,cnt) VALUES(?1,1) " "ON CONFLICT(word) DO UPDATE SET cnt=cnt+1", -1, &pInsert, 0); if( rc ) fatal_error("Could not prepare the UPSERT statement: %s\n", sqlite3_errmsg(db)); } if( iMode2==MODE_DELETE ){ rc = sqlite3_prepare_v2(db, "DELETE FROM wordcount WHERE word=?1", -1, &pDelete, 0); if( rc ) fatal_error("Could not prepare the DELETE statement: %s\n", sqlite3_errmsg(db)); } |