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Code Issues

Remove weekday support in DATEADD/DATEDIFF - CORE-1526

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This commit is contained in:
asfernandes 2007-10-23 14:14:23 +00:00
parent 51d8bae04f
commit 78e4d71ee1
2 changed files with 1 additions and 9 deletions
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2
doc/sql.extensions/README.builtin_functions.txt
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@ -276,7 +276,7 @@ Format:
DATEADD( <number> <timestamp_part> TO <date_time> )
DATEADD( <timestamp_part>, <number>, <date_time> )
timestamp_part ::= { YEAR | MONTH | DAY | WEEKDAY | HOUR | MINUTE | SECOND | MILLISECOND }
timestamp_part ::= { YEAR | MONTH | DAY | HOUR | MINUTE | SECOND | MILLISECOND }
Notes:
1) YEAR, MONTH, DAY and WEEKDAY could not be used with time values.

8
src/jrd/SysFunction.cpp
View File

@ -1243,10 +1243,6 @@ static dsc* evlDateAdd(Jrd::thread_db* tdbb, const SysFunction* function, Jrd::j
timestamp.value().timestamp_date += quantity;
break;
case blr_extract_weekday:
timestamp.value().timestamp_date += (quantity * 7);
break;
case blr_extract_hour:
add10msec(&timestamp.value(), quantity, 3600 * ISC_TIME_SECONDS_PRECISION);
break;
@ -1384,7 +1380,6 @@ static dsc* evlDateDiff(Jrd::thread_db* tdbb, const SysFunction* function, Jrd::
case blr_extract_year:
case blr_extract_month:
case blr_extract_day:
case blr_extract_weekday:
if (value1Dsc->dsc_dtype == dtype_sql_time || value2Dsc->dsc_dtype == dtype_sql_time)
status_exception::raise(isc_expression_eval_err, 0);
break;
@ -1418,10 +1413,7 @@ static dsc* evlDateDiff(Jrd::thread_db* tdbb, const SysFunction* function, Jrd::
break;
case blr_extract_day:
case blr_extract_weekday:
result = timestamp2.value().timestamp_date - timestamp1.value().timestamp_date;
if (part == blr_extract_weekday)
result /= 7;
break;
case blr_extract_hour: