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-rw-r--r--bitbake/lib/prserv/db.py10
1 files changed, 10 insertions, 0 deletions
diff --git a/bitbake/lib/prserv/db.py b/bitbake/lib/prserv/db.py
index 9d6d11526a..437958013d 100644
--- a/bitbake/lib/prserv/db.py
+++ b/bitbake/lib/prserv/db.py
@@ -15,6 +15,16 @@ sqlversion = sqlite3.sqlite_version_info
15if sqlversion[0] < 3 or (sqlversion[0] == 3 and sqlversion[1] < 3): 15if sqlversion[0] < 3 or (sqlversion[0] == 3 and sqlversion[1] < 3):
16 raise Exception("sqlite3 version 3.3.0 or later is required.") 16 raise Exception("sqlite3 version 3.3.0 or later is required.")
17 17
18#
19# "No History" mode - for a given query tuple (version, pkgarch, checksum),
20# the returned value will be the largest among all the values of the same
21# (version, pkgarch). This means the PR value returned can NOT be decremented.
22#
23# "History" mode - Return a new higher value for previously unseen query
24# tuple (version, pkgarch, checksum), otherwise return historical value.
25# Value can decrement if returning to a previous build.
26#
27
18class PRTable(object): 28class PRTable(object):
19 def __init__(self, conn, table, nohist): 29 def __init__(self, conn, table, nohist):
20 self.conn = conn 30 self.conn = conn