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Changes On Branch tkt-55746f9e
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Changes In Branch tkt-55746f9e Excluding Merge-Ins

This is equivalent to a diff from 1a0d7d3d to f03fbf37

2014-05-07
18:23
Make sure the group_concat() function returns an empty string, not a NULL, if it has at least one input row. Fix for ticket [55746f9e65f8587]. (check-in: d01cedaa user: drh tags: trunk)
18:21
Ensure that the sqlite3StrAccumAppend() routine is never called with a NULL second argument. Doing so is harmless when N==0, but it causes an assert() to fail that was placed to quiet static analyzers. (Closed-Leaf check-in: f03fbf37 user: drh tags: tkt-55746f9e)
17:19
Make sure the group_concat() function returns an empty string, not a NULL, if it has at least one input row. Fix for ticket [55746f9e65f8587]. (check-in: 0deac873 user: drh tags: tkt-55746f9e)
15:46
Add the SQLITE_IOCAP_IMMUTABLE bit as a possible return value from the xDeviceCharacteristics method in the VFS. Add the "nolock" and "immutable" query parameters to URI filenames. (check-in: 1a0d7d3d user: drh tags: trunk)
15:32
Fix nolock and immutable so that they work even if READONLY is requested. (Closed-Leaf check-in: e193aced user: drh tags: win32-none)
2014-05-06
21:37
Update the template VSIX package file as well. (check-in: 99d96765 user: mistachkin tags: trunk)

Changes to src/func.c.

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        zSep = ",";
        nSep = 1;
      }
      if( nSep ) sqlite3StrAccumAppend(pAccum, zSep, nSep);
    }
    zVal = (char*)sqlite3_value_text(argv[0]);
    nVal = sqlite3_value_bytes(argv[0]);

    if( nVal ) sqlite3StrAccumAppend(pAccum, zVal, nVal);

  }
}
static void groupConcatFinalize(sqlite3_context *context){
  StrAccum *pAccum;
  pAccum = sqlite3_aggregate_context(context, 0);
  if( pAccum ){
    if( pAccum->accError==STRACCUM_TOOBIG ){







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        zSep = ",";
        nSep = 1;
      }
      if( nSep ) sqlite3StrAccumAppend(pAccum, zSep, nSep);
    }
    zVal = (char*)sqlite3_value_text(argv[0]);
    nVal = sqlite3_value_bytes(argv[0]);
    if( nVal || (zVal="", firstTerm) ){
      sqlite3StrAccumAppend(pAccum, zVal, nVal);
    }
  }
}
static void groupConcatFinalize(sqlite3_context *context){
  StrAccum *pAccum;
  pAccum = sqlite3_aggregate_context(context, 0);
  if( pAccum ){
    if( pAccum->accError==STRACCUM_TOOBIG ){

Changes to test/func.test.

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} {software}
do_test func-24.12 {
  execsql {
    SELECT group_concat(CASE t1 WHEN 'this' THEN ''
                          WHEN 'program' THEN null ELSE t1 END) FROM tbl1
  }
} {,is,free,software}














# Use the test_isolation function to make sure that type conversions
# on function arguments do not effect subsequent arguments.
#
do_test func-25.1 {
  execsql {SELECT test_isolation(t1,t1) FROM tbl1}







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} {software}
do_test func-24.12 {
  execsql {
    SELECT group_concat(CASE t1 WHEN 'this' THEN ''
                          WHEN 'program' THEN null ELSE t1 END) FROM tbl1
  }
} {,is,free,software}
# Tests to verify ticket http://www.sqlite.org/src/tktview/55746f9e65f8587c0
do_test func-24.13 {
  execsql {
    SELECT typeof(group_concat(x)) FROM (SELECT '' AS x);
  }
} {text}
do_test func-24.14 {
  execsql {
    SELECT typeof(group_concat(x,''))
      FROM (SELECT '' AS x UNION ALL SELECT '');
  }
} {text}


# Use the test_isolation function to make sure that type conversions
# on function arguments do not effect subsequent arguments.
#
do_test func-25.1 {
  execsql {SELECT test_isolation(t1,t1) FROM tbl1}