clamp the estimated number of groups to table row count over 10, instead
of table row count; this reflects a heuristic that people probably won't
group over a near-unique set of columns, and the knowledge that we don't
currently have any way to estimate the correlation of the columns better
than guessing. This change creates a trivial plan change in one of the
regression tests.
look at the actual aggregate transition datatypes and the actual overhead
needed by nodeAgg.c, instead of using pessimistic round numbers.
Per a discussion with Michael Tiemann.
command. This is useful because we can allow truncation of tables
referenced by foreign keys, so long as the referencing table is
truncated in the same command.
Alvaro Herrera
to avoid problems when a cursor depends on objects created or changed in
the same subtransaction. We'd like to do better someday, but this seems
the only workable answer for 8.0.1.
column values in -d mode. Per report from Marty Scholes. This doesn't
completely solve the issue, because we still need multiple copies of the
field value, but at least one copy can be got rid of painlessly ...
compares two strings' soundex values for similarity, from Kris Jurka.
Also mark the text_soundex() function as STRICT, to avoid crashing
on NULL input.
regression=# select to_tsquery( '\'fotballklubber\'');
to_tsquery
------------------------------------------------
'fotball' & 'klubb' | 'fot' & 'ball' & 'klubb'
(1 row)
So, changed interface to dictionaries, lexize method of dictionary shoud return
pointer to aray of TSLexeme structs instead of char**. Last element should
have TSLexeme->lexeme == NULL.
typedef struct {
/* number of variant of split word , for example
Word 'fotballklubber' (norwegian) has two varian to split:
( fotball, klubb ) and ( fot, ball, klubb ). So, dictionary
should return:
nvariant lexeme
1 fotball
1 klubb
2 fot
2 ball
2 klubb
*/
uint16 nvariant;
/* currently unused */
uint16 flags;
/* C-string */
char *lexeme;
} TSLexeme;
typedef struct {} WordEntryPos;
to
typedef uint16 WordEntryPos
according to http://www.pgsql.ru/db/mw/msg.html?mid=2035188
Require re-fill all tsvector fields and reindex tsvector indexes.
- Dependency services may not be correctly registered when installing as
a Windows Service.
- The sleep time is changed from milliseconds to seconds as it should
be.
- Error messages during service installation/removal are logged to
stderr.
pre-7.3 pg_dump archive files: namespace isn't there, and in some cases
te->tag may already be quotified. Per report from Alan Pevec and
followup testing.
< BY col {DESC} LIMIT 1. Completing this item involves making this
> BY col {DESC} LIMIT 1. Completing this item involves doing this
< invalidated if anyone modifies the table.
<
> invalidated if anyone modifies the table. Another idea is to
> get a count directly from a unique index, but for this to be
> faster than a sequential scan it must avoid access to the heap
> to obtain tuple visibility information.
>
> * Allow data to be pulled directly from indexes
>
> Currently indexes do not have enough tuple tuple visibility
> information to allow data to be pulled from the index without
> also accessing the heap. One way to allow this is to set a bit
> to index tuples to indicate if a tuple is currently visible to
> all transactions when the first valid heap lookup happens. This
> bit would have to be cleared when a heap tuple is expired.
>
pass if "default_with_oids" is set to false. I took the approach of
explicitly adding WITH OIDS to the CREATE TABLEs where necessary, rather
than tweaking the default_with_oids GUC var.
