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query expansion for fulltext search

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myisam/ft_boolean_search.c:
  assert.h and queues.h moved to ftdefs.h
myisam/ft_parser.c:
  ft_parse() with alloc
myisam/ft_static.c:
  api changes, ft_max_word_len_for_sort variable removed
myisam/ft_update.c:
  ft_parse() with alloc
myisam/ftdefs.h:
  variable ft_max_word_len_for_sort -> define FT_MAX_WORD_LEN_FOR_SORT
  api changes, ft_max_word_len_for_sort variable removed
  ft_parse() with alloc
myisam/mi_check.c:
  variable ft_max_word_len_for_sort -> define FT_MAX_WORD_LEN_FOR_SORT
myisam/myisamchk.c:
  ft_max_word_len_for_sort removed
mysql-test/r/fulltext.result:
  query expansion tests
mysql-test/r/fulltext_var.result:
  ft_max_word_len_for_sort removed
mysql-test/t/fulltext.test:
  query expansion tests
sql/ha_myisam.h:
  ft api changes for query expansion
sql/mysqld.cc:
  ft_max_word_len_for_sort removed
  ft_query_expansion_limit added
sql/set_var.cc:
  ft_max_word_len_for_sort removed
  ft_query_expansion_limit added
sql/sql_yacc.yy:
  EXPANSION added to keyword: rule
This commit is contained in:
unknown
2003-10-23 15:21:06 +02:00
parent fd85cc84e4
commit aa98f58bae
16 changed files with 112 additions and 61 deletions
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11
myisam/ft_parser.c
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@ -183,7 +183,7 @@ void ft_parse_init(TREE *wtree, CHARSET_INFO *cs)
DBUG_VOID_RETURN;
}
int ft_parse(TREE *wtree, byte *doc, int doclen)
int ft_parse(TREE *wtree, byte *doc, int doclen, my_bool with_alloc)
{
byte *end=doc+doclen;
FT_WORD w;
@ -191,6 +191,15 @@ int ft_parse(TREE *wtree, byte *doc, int doclen)
while (ft_simple_get_word(wtree->custom_arg, &doc,end,&w))
{
if (with_alloc)
{
byte *ptr;
/* allocating the data in the tree - to avoid mallocs and frees */
DBUG_ASSERT(wtree->with_delete==0);
ptr=(byte *)alloc_root(& wtree->mem_root,w.len);
memcpy(ptr, w.pos, w.len);
w.pos=ptr;
}
if (!tree_insert(wtree, &w, 0, wtree->custom_arg))
goto err;
}