1Mail::SpamAssassin::BayUesseSrtoCroen:t:rPigbSuQtLe(d3M)Paeirll::DSopcaummAesnstaastsiionn::BayesStore::PgSQL(3)
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NAME

6       Mail::SpamAssassin::BayesStore::PgSQL - PostgreSQL Specific Bayesian
7       Storage Module Implementation
8

SYNOPSIS

DESCRIPTION
11       This module implements a PostgreSQL specific bayesian storage module.
12
13       It subclasses Mail::SpamAssassin::BayesStore::SQL and overrides any
14       methods which makes SQL calls involving the token column.  Since
15       PostgreSQL uses BYTEA for the token column type you must make sure that
16       the DBD driver does the proper quoting.  You can accomplish this by
17       binding the token column to a specific type.
18

METHODS
20   token_expiration
21       public instance (Integer, Integer,
22                        Integer, Integer) token_expiration(\% $opts,
23                                                           Integer $newdelta,
24                                                           @ @vars)
25
26       Description: This method performs the database specific expiration of
27       tokens based on the passed in $newdelta and @vars.
28
29   seen_put
30       public (Boolean) seen_put (string $msgid, char $flag)
31
32       Description: This method records $msgid as the type given by $flag.
33       $flag is one of two values 's' for spam and 'h' for ham.
34
35   seen_delete
36       public instance (Boolean) seen_delete (string $msgid)
37
38       Description: This method removes $msgid from the database.
39
40   set_last_expire
41       public instance (Boolean) set_last_expire (Integer $time)
42
43       Description: This method sets the last expire time.
44
45   set_running_expire_tok
46       public instance (String $time) set_running_expire_tok ()
47
48       Description: This method sets the time that an expire starts running.
49
50   remove_running_expire_tok
51       public instance (Boolean) remove_running_expire_tok ()
52
53       Description: This method removes the row in the database that indicates
54       that and expire is currently running.
55
56   tok_get
57       public instance (Integer, Integer, Integer) tok_get (String $token)
58
59       Description: This method retrieves a specificed token ($token) from the
60       database and returns it's spam_count, ham_count and last access time.
61
62   tok_get_all
63       public instance (\@) tok_get (@ $tokens)
64
65       Description: This method retrieves the specified tokens ($tokens) from
66       storage and returns an array ref of arrays spam count, ham acount and
67       last access time.
68
69   nspam_nham_change
70       public instance (Boolean) nspam_nham_change (Integer $num_spam,
71                                                    Integer $num_ham)
72
73       Description: This method updates the number of spam and the number of
74       ham in the database.
75
76   tok_touch
77       public instance (Boolean) tok_touch (String $token,
78                                            String $atime)
79
80       Description: This method updates the given tokens ($token) atime.
81
82       The assumption is that the token already exists in the database.
83
84   tok_touch_all
85       public instance (Boolean) tok_touch (\@ $tokens
86                                            String $atime)
87
88       Description: This method does a mass update of the given list of tokens
89       $tokens, if the existing token atime is < $atime.
90
91       The assumption is that the tokens already exist in the database.
92
93       We should never be touching more than N_SIGNIFICANT_TOKENS, so we can
94       make some assumptions about how to handle the data (ie no need to batch
95       like we do in tok_get_all)
96
97   cleanup
98       public instance (Boolean) cleanup ()
99
100       Description: This method perfoms any cleanup necessary before moving
101       onto the next operation.
102
103   clear_database
104       public instance (Boolean) clear_database ()
105
106       Description: This method deletes all records for a particular user.
107
108       Callers should be aware that any errors returned by this method could
109       causes the database to be inconsistent for the given user.
110

Private Methods
112   _connect_db
113       private instance (Boolean) _connect_db ()
114
115       Description: This method connects to the SQL database.
116
117   _put_token
118       private instance (Boolean) _put_token (string $token,
119                                              integer $spam_count,
120                                              integer $ham_count,
121                                  string $atime)
122
123       Description: This method performs the work of either inserting or
124       updating a token in the database.
125
126   _put_tokens
127       private instance (Boolean) _put_tokens (\% $token,
128                                               integer $spam_count,
129                                               integer $ham_count,
130                             string $atime)
131
132       Description: This method performs the work of either inserting or
133       updating tokens in the database.
134
135   _token_select_string
136       private instance (String) _token_select_string
137
138       Description: This method returns the string to be used in SELECT
139       statements to represent the token column.
140
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143perl v5.12.4                      2011-M0a6i-l0:6:SpamAssassin::BayesStore::PgSQL(3)



        

    


            
        

        

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