~drizzle-trunk/drizzle/development

#

# Tests for the MONTH() function

#

# The Drizzle MONTH() function differs from the MySQL MONTH()

# function in these ways:

#

#  * Does not accept invalid parameters.  This results in an error

#    in Drizzle.

#

# MONTH() on a NULL should produce

# a NULL.

SELECT MONTH(NULL);

# 

# Test improper argument list 

#

# 1 arg is required.

--error ER_PARSE_ERROR 

# Wrong parameter count...but unfortunately produces 1064 Syntax Error due to limitations of 

# the SQL parser, which considers MONTH a keyword before being a function symbol

SELECT MONTH();

--error ER_PARSE_ERROR

# Wrong parameter count...but unfortunately produces 1064 Syntax Error due to limitations of 

# the SQL parser, which considers MONTH a keyword before being a function symbol

SELECT MONTH(1, 0);

# 

# Test invalid dates passed to MONTH

# produce an error, not a NULL or anything

# else...

#

--error ER_INVALID_DATETIME_VALUE

SELECT MONTH("xxx");

# Indy, bad dates!

--error ER_INVALID_DATETIME_VALUE

SELECT MONTH("0000-00-00"); # No 0000-00-00 dates!...

--error ER_INVALID_DATETIME_VALUE

SELECT MONTH("0000-01-01"); # No zero year parts

--error ER_INVALID_DATETIME_VALUE

SELECT MONTH("0001-00-01"); # No zero month parts

--error ER_INVALID_DATETIME_VALUE

SELECT MONTH("0001-01-00"); # No zero day parts

--error ER_INVALID_DATETIME_VALUE

SELECT MONTH("2000-02-30"); # No Feb 30th!

--error ER_INVALID_DATETIME_VALUE

SELECT MONTH("1900-02-29"); # Not a leap MONTH since not divisible evenly by 400...

--error ER_INVALID_DATETIME_VALUE

SELECT MONTH('1976-15-15'); # No 15th month!

# A good date, which should output 1

SELECT MONTH("2009-01-12");

# A good date, which should output 1999 - Test of 1 digit MONTH conversion...

SELECT MONTH("99-1-31");

# A good date, which should output 9

SELECT MONTH("0001-09-30");

# A good date, which should output 12

SELECT MONTH("9999-12-31");

# A good date in the common USA format, should output 7

SELECT MONTH('07/31/2009');

# 

# Tests for alternate DATETIME syntaxes 

# in string and numeric formats. All should

# return 9.

#

SELECT MONTH('20090916');

SELECT MONTH('20090916091528');

SELECT MONTH("20090916091528.000000");

SELECT MONTH('09-09-16');

SELECT MONTH('09.09.16');

SELECT MONTH('09/09/16');

SELECT MONTH('09-09-16');

SELECT MONTH('09-9-2');

SELECT MONTH(20090916);

SELECT MONTH(20090916091528);

SELECT MONTH(20090916091528.000001);

# Now test field values of different types

USE test;

--disable_warnings

DROP TABLE IF EXISTS t1;

--enable_warnings

CREATE TABLE t1 (

  int_fld INT NOT NULL

, date_fld DATE NOT NULL

, datetime_fld DATETIME NOT NULL

, timestamp_fld TIMESTAMP NOT NULL

, char_fld CHAR(22) NOT NULL

, varchar_fld VARCHAR(22) NOT NULL

, text_fld TEXT NOT NULL

, blob_fld BLOB NOT NULL

);

INSERT INTO t1 VALUES (

20071130

, "2007-11-30"

, "2007-11-30 16:30:19"

, "2007-11-30T16:30:19"

, "2007-11-30 16:30:19"

, "2007-11-30 16:30:19"

, "2007-11-30T16:30:19"

, "2007-11-30T16:30:19"

);

# Should all output 11

SELECT MONTH(int_fld) FROM t1;

SELECT MONTH(date_fld) FROM t1;

SELECT MONTH(datetime_fld) FROM t1;

SELECT MONTH(timestamp_fld) FROM t1;

SELECT MONTH(char_fld) FROM t1;

SELECT MONTH(varchar_fld) FROM t1;

SELECT MONTH(text_fld) FROM t1;

SELECT MONTH(blob_fld) FROM t1;

DROP TABLE t1;