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Improve browse queries (credit @chme)

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Adjusted re-commit of commit ec47c6e730
This commit is contained in:
ejurgensen 2015-01-09 23:58:27 +01:00
parent 27a2fabb56
commit 2208c021aa
1 changed files with 18 additions and 12 deletions
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30
src/db.c
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@ -1433,28 +1433,28 @@ db_build_query_browse(struct query_params *qp, char *field, char *sort_field, ch
}
else
{
size = strlen("ORDER BY f.") + strlen(field) + 1;
size = strlen("ORDER BY f.") + strlen(sort_field) + 1;
sort = malloc(size);
if (!sort)
{
DPRINTF(E_LOG, L_DB, "Out of memory for sort string\n");
return -1;
}
snprintf(sort, size, "ORDER BY f.%s", field);
snprintf(sort, size, "ORDER BY f.%s", sort_field);
}
if (idx && qp->filter)
query = sqlite3_mprintf("SELECT DISTINCT f.%s, f.%s FROM files f WHERE f.disabled = 0 AND f.%s != ''"
" AND %s %s %s;", field, sort_field, field, qp->filter, sort, idx);
query = sqlite3_mprintf("SELECT f.%s, f.%s FROM files f WHERE f.disabled = 0 AND f.%s != ''"
" AND %s GROUP BY f.%s %s %s;", field, sort_field, field, qp->filter, field, sort, idx);
else if (idx)
query = sqlite3_mprintf("SELECT DISTINCT f.%s, f.%s FROM files f WHERE f.disabled = 0 AND f.%s != ''"
" %s %s;", field, sort_field, field, sort, idx);
query = sqlite3_mprintf("SELECT f.%s, f.%s FROM files f WHERE f.disabled = 0 AND f.%s != ''"
" GROUP BY f.%s %s %s;", field, sort_field, field, field, sort, idx);
else if (qp->filter)
query = sqlite3_mprintf("SELECT DISTINCT f.%s, f.%s FROM files f WHERE f.disabled = 0 AND f.%s != ''"
" AND %s %s;", field, sort_field, field, qp->filter, sort);
query = sqlite3_mprintf("SELECT f.%s, f.%s FROM files f WHERE f.disabled = 0 AND f.%s != ''"
" AND %s GROUP BY f.%s %s;", field, sort_field, field, qp->filter, field, sort);
else
query = sqlite3_mprintf("SELECT DISTINCT f.%s, f.%s FROM files f WHERE f.disabled = 0 AND f.%s != '' %s",
field, sort_field, field, sort);
query = sqlite3_mprintf("SELECT f.%s, f.%s FROM files f WHERE f.disabled = 0 AND f.%s != ''"
" GROUP BY f.%s %s", field, sort_field, field, field, sort);
free(sort);
@ -4431,11 +4431,17 @@ static const struct db_init_query db_init_table_queries[] =
#define I_ALBUMARTIST \
"CREATE INDEX IF NOT EXISTS idx_albumartist ON files(album_artist, album_artist_sort);"
/* Used by Q_BROWSE_COMPOSERS */
#define I_COMPOSER \
"CREATE INDEX IF NOT EXISTS idx_composer ON files(composer, composer_sort);"
"CREATE INDEX IF NOT EXISTS idx_composer ON files(disabled, media_kind, composer_sort);"
/* Used by Q_BROWSE_GENRES */
#define I_GENRE \
"CREATE INDEX IF NOT EXISTS idx_genre ON files(disabled, media_kind, genre);"
/* Used by Q_PLITEMS for smart playlists */
#define I_TITLE \
"CREATE INDEX IF NOT EXISTS idx_title ON files(title, title_sort);"
"CREATE INDEX IF NOT EXISTS idx_title ON files(disabled, media_kind, title_sort);"
#define I_ALBUM \
"CREATE INDEX IF NOT EXISTS idx_album ON files(album, album_sort);"