c_content TEXT to LONGTEXT for OpenChange tables

Add an script to update existing tables.
Note that if a row already have 65535 char in it,
the data is most likely broken.

Scripts/sql-update-2.0.4b_to_2.0.5-mysql.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+set -e
+
+# This script only works with mysql
+# updates c_content to longtext in SOGo/OpenChange cache tables
+# to avoid truncation of data at 64k
+
+
+defaultusername=$USER
+defaulthostname=127.0.0.1
+defaultdatabase=sogo
+
+read -p "Username ($defaultusername): " username
+read -p "Hostname ($defaulthostname): " hostname
+read -p "Database ($defaultdatabase): " database
+
+if [ -z "$username" ]
+then
+  username=$defaultusername
+fi
+
+if [ -z "$hostname" ]
+then
+  hostname=$defaulthostname
+fi
+
+if [ -z "$database" ]
+then
+  database=$defaultdatabase
+fi
+
+sqlscript=""
+
+function growContent() {
+    oldIFS="$IFS"
+    IFS=" "
+    part="`echo -e \"ALTER TABLE $table MODIFY c_content LONGTEXT;\\n\"`";
+    sqlscript="$sqlscript$part"
+    IFS="$oldIFS"
+}
+
+echo "This script will ask for the sql password twice" >&2
+echo "Converting c_content from TEXT to LONGTEXT in SOGo/OpenChange cache tables" >&2
+tables=`mysql -p -s -u $username -h $hostname $database -e "show tables like 'socfs_%';"`
+
+for table in $tables;
+do
+  growContent
+done
+
+echo "$sqlscript" | mysql -p -s -u $username -h $hostname $database