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authorEric Wong <e@yhbt.net>2020-08-20 20:24:44 +0000
committerEric Wong <e@yhbt.net>2020-08-20 21:11:13 +0000
commit365d58c295a12d38cc92be3b274919519bedaa40 (patch)
treebd90ddb7556b37792d11520784e7f35a26013871 /lib/PublicInbox/Search.pm
parent4d8a07616ebe29771c9775173e9d01a91ec677ae (diff)
downloadpublic-inbox-365d58c295a12d38cc92be3b274919519bedaa40.tar.gz
We'll probably be adding more value columns like THREADID to sort
on.
Diffstat (limited to 'lib/PublicInbox/Search.pm')
-rw-r--r--lib/PublicInbox/Search.pm63
1 files changed, 34 insertions, 29 deletions
diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index 4d02a7c1..593040a8 100644
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -6,15 +6,47 @@
 package PublicInbox::Search;
 use strict;
 
-# values for searching
+# values for searching, changing the numeric value breaks
+# compatibility with old indices (so don't change them it)
 use constant {
         TS => 0, # Received: header in Unix time (IMAP INTERNALDATE)
         YYYYMMDD => 1, # Date: header for searching in the WWW UI
         DT => 2, # Date: YYYYMMDDHHMMSS
+
+        # added for public-inbox 1.6.0+
         BYTES => 3, # IMAP RFC822.SIZE
         UID => 4, # IMAP UID == NNTP article number == Xapian docid
+
         # TODO
-        # REPLYCNT => 4, # IMAP ANSWERED
+        # THREADID => ?
+        # REPLYCNT => ?, # IMAP ANSWERED
+
+        # SCHEMA_VERSION history
+        # 0 - initial
+        # 1 - subject_path is lower-cased
+        # 2 - subject_path is id_compress in the index, only
+        # 3 - message-ID is compressed if it includes '%' (hack!)
+        # 4 - change "Re: " normalization, avoid circular Reference ghosts
+        # 5 - subject_path drops trailing '.'
+        # 6 - preserve References: order in document data
+        # 7 - remove references and inreplyto terms
+        # 8 - remove redundant/unneeded document data
+        # 9 - disable Message-ID compression (SHA-1)
+        # 10 - optimize doc for NNTP overviews
+        # 11 - merge threads when vivifying ghosts
+        # 12 - change YYYYMMDD value column to numeric
+        # 13 - fix threading for empty References/In-Reply-To
+        #      (commit 83425ef12e4b65cdcecd11ddcb38175d4a91d5a0)
+        # 14 - fix ghost root vivification
+        # 15 - see public-inbox-v2-format(5)
+        #      further bumps likely unnecessary, we'll suggest in-place
+        #      "--reindex" use for further fixes and tweaks:
+        #
+        #      public-inbox v1.5.0 adds (still SCHEMA_VERSION=15):
+        #      * "lid:" and "l:" for List-Id searches
+        #
+        #      v1.6.0 adds BYTES and UID values
+        SCHEMA_VERSION => 15,
 };
 
 use PublicInbox::Smsg;
@@ -61,33 +93,6 @@ sub load_xapian () {
 # a prefix common in patch emails
 our $LANG = 'english';
 
-use constant {
-        # SCHEMA_VERSION history
-        # 0 - initial
-        # 1 - subject_path is lower-cased
-        # 2 - subject_path is id_compress in the index, only
-        # 3 - message-ID is compressed if it includes '%' (hack!)
-        # 4 - change "Re: " normalization, avoid circular Reference ghosts
-        # 5 - subject_path drops trailing '.'
-        # 6 - preserve References: order in document data
-        # 7 - remove references and inreplyto terms
-        # 8 - remove redundant/unneeded document data
-        # 9 - disable Message-ID compression (SHA-1)
-        # 10 - optimize doc for NNTP overviews
-        # 11 - merge threads when vivifying ghosts
-        # 12 - change YYYYMMDD value column to numeric
-        # 13 - fix threading for empty References/In-Reply-To
-        #      (commit 83425ef12e4b65cdcecd11ddcb38175d4a91d5a0)
-        # 14 - fix ghost root vivification
-        # 15 - see public-inbox-v2-format(5)
-        #      further bumps likely unnecessary, we'll suggest in-place
-        #      "--reindex" use for further fixes and tweaks
-        #
-        #      public-inbox v1.5.0 adds (still SCHEMA_VERSION=15):
-        #      * "lid:" and "l:" for List-Id searches
-        SCHEMA_VERSION => 15,
-};
-
 # note: the non-X term prefix allocations are shared with
 # Xapian omega, see xapian-applications/omega/docs/termprefixes.rst
 my %bool_pfx_external = (