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hlr db schema 3: hlr_number -> msc_number

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The osmo-hlr DB schema indicates a hlr_number column and references it as 3GPP
TS 23.008 chapter 2.4.6. However, chapter 2.4.6 refers to the "MSC number",
while the "HLR number" is chapter 2.4.7.

Taking a closer look, 2.4.6 says "The MSC number is [...] stored in the HLR",
while 2.4.7 says "The HLR number may be stored in the VLR". As quite obvious,
the HLR does not store the HLR number. This was a typo from the start.

The osmo-hlr code base so far does not use the hlr_number column at all, so we
get away with renaming the column without any effects on the code base.
However, let's rather make this a new schema version to be safe.

Change-Id: I527e8627b24b79f3e9eec32675c7f5a3a6d25440
This commit is contained in:
Neels Hofmeyr
2019-10-31 01:19:44 +01:00
committed by laforge
parent 4359b885d4
commit a8045daeef
4 changed files with 157 additions and 14 deletions
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4
sql/hlr.sql
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@@ -12,7 +12,7 @@ CREATE TABLE subscriber (
-- Chapter 2.4.5
vlr_number VARCHAR(15),
-- Chapter 2.4.6
hlr_number VARCHAR(15),
msc_number VARCHAR(15),
-- Chapter 2.4.8.1
sgsn_number VARCHAR(15),
-- Chapter 2.13.10
@@ -77,4 +77,4 @@ CREATE UNIQUE INDEX idx_subscr_imsi ON subscriber (imsi);
-- Set HLR database schema version number
-- Note: This constant is currently duplicated in src/db.c and must be kept in sync!
PRAGMA user_version = 2;
PRAGMA user_version = 3;