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41 id 1XhHXP-0007bg-6q; Thu, 23 Oct 2014 08:30:43 -0400
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42 From: Austin Clements <aclements@csail.mit.edu>
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43 To: notmuch@notmuchmail.org
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44 Subject: [PATCH v3 2/9] lib: Update database schema doc for ghost messages
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45 Date: Thu, 23 Oct 2014 08:30:34 -0400
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46 Message-Id: <1414067441-29054-3-git-send-email-aclements@csail.mit.edu>
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77 From: Austin Clements <amdragon@mit.edu>
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79 This describes the structure of ghost mail documents. Ghost messages
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80 are not yet implemented.
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82 lib/database.cc | 20 ++++++++++++++++++--
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83 1 file changed, 18 insertions(+), 2 deletions(-)
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85 diff --git a/lib/database.cc b/lib/database.cc
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86 index 8fd7fad..c641bcd 100644
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87 --- a/lib/database.cc
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88 +++ b/lib/database.cc
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89 @@ -50,8 +50,8 @@ typedef struct {
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91 /* Here's the current schema for our database (for NOTMUCH_DATABASE_VERSION):
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93 - * We currently have two different types of documents (mail and
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94 - * directory) and also some metadata.
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95 + * We currently have three different types of documents (mail, ghost,
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96 + * and directory) and also some metadata.
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100 @@ -109,6 +109,15 @@ typedef struct {
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102 * The data portion of a mail document is empty.
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104 + * Ghost mail document [if NOTMUCH_FEATURE_GHOSTS]
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105 + * -----------------------------------------------
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106 + * A ghost mail document is like a mail document, but where we don't
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107 + * have the message content. These are used to track thread reference
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108 + * information for messages we haven't received.
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110 + * A ghost mail document has type: ghost; id and thread fields that
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111 + * are identical to the mail document fields; and a MESSAGE_ID value.
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113 * Directory document
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114 * ------------------
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115 * A directory document is used by a client of the notmuch library to
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116 @@ -172,6 +181,13 @@ typedef struct {
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117 * generated is 1 and the value will be
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118 * incremented for each thread ID.
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120 + * Obsolete metadata
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121 + * -----------------
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123 + * If ! NOTMUCH_FEATURE_GHOSTS, there are no ghost mail documents.
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124 + * Instead, the database has the following additional database
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127 * thread_id_* A pre-allocated thread ID for a particular
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128 * message. This is actually an arbitrarily large
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129 * family of metadata name. Any particular name is
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