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import sys
import itertools
cols = [ 'a', 'b', 'c', 'd', 'e' ]
old_types = [ 'VARCHAR(1)', 'VARBINARY(1)', 'INT', 'CHAR(1)', 'BINARY(1)' ]
new_types = [ 'VARCHAR(2)', 'VARBINARY(2)', 'BIGINT', 'CHAR(2)', 'BINARY(2)' ]
def main():
print "# this test generated by change_multiple_columns.py"
print "# this test generated multiple column changes which should all fail since we support only one at a time"
print "--disable_warnings"
print "DROP TABLE IF EXISTS t;"
print "--enable_warnings"
print "SET SESSION TOKUDB_DISABLE_SLOW_ALTER=1;"
print "SET SESSION DEFAULT_STORAGE_ENGINE='TokuDB';"
create_cmd = "CREATE TABLE t ("
for i in range(len(cols)):
create_cmd += "%s %s" % (cols[i], old_types[i])
if i < len(cols)-1:
create_cmd += ","
print "%s);" % (create_cmd)
l = range(len(cols))
for t in combinations(l, range(2,len(cols))):
alter_cmd = gen_alter(t)
print "--replace_regex /MariaDB/XYZ/ /MySQL/XYZ/"
print "--error ER_UNSUPPORTED_EXTENSION"
print "%s;" % (alter_cmd)
print "DROP TABLE t;"
return 0
def gen_alter(t):
alter = "ALTER TABLE t "
for c in range(len(t)):
i = t[c]
alter += "CHANGE COLUMN %s %s %s" % (cols[i], cols[i], new_types[i])
if c < len(t)-1:
alter += ","
return alter
def combinations(l, r):
c = []
for k in r:
c += [ x for x in itertools.combinations(l, k) ]
return c
sys.exit(main())
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