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Overview
Comment:Add the test-without-rowid command.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1:7ddfd42b60cad34560d4d889cd60dd5d2a7ad35b
User & Date: drh 2013-11-11 21:08:00
Context
2013-11-11
21:42
Restore the limit-reached markers in the timeline printing routine. check-in: ab4d4dac user: mistachkin tags: trunk
21:08
Add the test-without-rowid command. check-in: 7ddfd42b user: drh tags: trunk
19:32
Output "+++ end of timeline reached +++" when appropriate at the end of timeline output in stead of marker indicating that a limit is reached. After ML request. If n=0 no marker will be output. check-in: 8e01c225 user: jan.nijtmans tags: trunk
Changes
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Changes to src/db.c.

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  if( g.argc!=3 ) usage("TIMESTAMP");
  sqlite3_open(":memory:", &g.db);
  rDiff = db_double(0.0, "SELECT julianday('now') - julianday(%Q)", g.argv[2]);
  fossil_print("Time differences: %s\n", db_timespan_name(rDiff));
  sqlite3_close(g.db);
  g.db = 0;
}









































































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  if( g.argc!=3 ) usage("TIMESTAMP");
  sqlite3_open(":memory:", &g.db);
  rDiff = db_double(0.0, "SELECT julianday('now') - julianday(%Q)", g.argv[2]);
  fossil_print("Time differences: %s\n", db_timespan_name(rDiff));
  sqlite3_close(g.db);
  g.db = 0;
}

/*
** COMMAND: test-without-rowid
** %fossil test-without-rowid FILENAME...
**
** Change the Fossil repository FILENAME to make use of the WITHOUT ROWID
** optimization.  FILENAME can also be the ~/.fossil file or a local
** .fslckout or _FOSSIL_ file.
**
** The purpose of this command is for testing the WITHOUT ROWID capabilities
** of SQLite.  There is no big advantage to using WITHOUT ROWID in Fossil.
**
** Options:
**    --dryrun | -n         No changes.  Just print what would happen.
*/
void test_without_rowid(void){
  int i, j;
  Stmt q;
  Blob allSql;
  int dryRun = find_option("dry-run", "n", 0)!=0;
  for(i=2; i<g.argc; i++){
    db_open_or_attach(g.argv[i], "main", 0);
    blob_init(&allSql, "BEGIN;\n", -1);
    db_prepare(&q,
      "SELECT name, sql FROM main.sqlite_master "
      " WHERE type='table' AND sql NOT LIKE '%%WITHOUT ROWID%%'"
      "   AND name IN ('global_config','shun','concealed','config',"
                    "  'plink','tagxref','backlink','vcache');"
    );
    while( db_step(&q)==SQLITE_ROW ){
      const char *zTName = db_column_text(&q, 0);
      const char *zOrigSql = db_column_text(&q, 1);
      Blob newSql;
      blob_init(&newSql, 0, 0);
      for(j=0; zOrigSql[j]; j++){
        if( fossil_strnicmp(zOrigSql+j,"unique",6)==0 ){
          blob_append(&newSql, zOrigSql, j);
          blob_append(&newSql, "PRIMARY KEY", -1);
          zOrigSql += j+6;
          j = -1;
        }
      }
      blob_append(&newSql, zOrigSql, -1);
      blob_appendf(&allSql, 
         "ALTER TABLE %s RENAME TO x_%s;\n"
         "%s WITHOUT ROWID;\n"
         "INSERT INTO %s SELECT * FROM x_%s;\n"
         "DROP TABLE x_%s;\n",
         zTName, zTName, blob_str(&newSql), zTName, zTName, zTName
      );
      fossil_print("Converting table %s of %s to WITHOUT ROWID.\n", zTName, g.argv[i]);
      blob_reset(&newSql);
    }
    blob_appendf(&allSql, "COMMIT;\n");
    db_finalize(&q);
    if( dryRun ){
      fossil_print("SQL that would have been evaluated:\n");
      fossil_print("-------------------------------------------------------------\n");
      fossil_print("%s", blob_str(&allSql));
    }else{
      db_multi_exec("%s", blob_str(&allSql));
    }
    blob_reset(&allSql);
    db_close(1);
  }
}