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Edit File: datadict.pre

#### suite/funcs_1/datadict/datadict.pre
#
# Auxiliary script which loads prerequisites
# (variables needed for --replace_result ...)
# in datadictionary tests.
#
# Author:
# 2008-01-23 mleich WL#4203 Reorganize and fix the data dictionary tests of
#                           testsuite funcs_1
#                   Create this script based on older scripts and new code.
#
--disable_query_log

# Bug#12777 Different size shown for VARCHAR(n) columns (with n> 64)
#           in INFORMATION_SCHEMA
# This bug was unfortunately (for testers) declared to be no bug.
# So CHARACTER_MAXIMUM_LENGTH of several <whatever>_CATALOG columns within
# the INFORMATION_SCHEMA depends on PATH_MAX of the operating system.
# Workaround for this problem:
# Get the size of ONE known colum and check the size against some values to
# be able to use the correct --replace_result statement. Using this only the
# one pair of 'wrong' values is replaced and not all occurrencies of all
# possible pairs of values. See bug #12777 for details.
SELECT character_maximum_length INTO @CML
FROM information_schema.columns
WHERE table_schema = 'information_schema'
  AND table_name   = 'columns'
  AND column_name  = 'table_catalog';

let $bug_12777_0512= `SELECT @CML =  512`;
let $bug_12777_1023= `SELECT @CML = 1023`;
let $bug_12777_1024= `SELECT @CML = 1024`;
let $bug_12777_2048= `SELECT @CML = 2048`;
# 4096 is the value used in the files with expected results.
let $bug_12777_4095= `SELECT @CML = 4095`;
if (0)
{
   # enable this for debugging only, but NOT in a pushed version, as then the
   # result changes from OS to OS ...
   eval SELECT @CML AS 'CML',
               $bug_12777_0512 AS '512',
               $bug_12777_1023 AS '1023',
               $bug_12777_1024 AS '1024',
               $bug_12777_2048 AS '2048',
               $bug_12777_4095 AS '4095';
}

# Prepare a variable to be able to suppress machine dependant diffs
# this can be used in: --replace_result $SERVER_NAME <SERVER_NAME>
let $SERVER_NAME= `SELECT DISTINCT host FROM mysql.user
                   WHERE host NOT In ("localhost", "127.0.0.1", "%")`;
--enable_query_log

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