Allow some operator-like tokens to be used as function names.
Flesh out support for time, timetz, and interval operators
and interactions.
Regression tests pass, but non-reference-platform horology test results
will need to be updated.
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.210 2000/11/24 20:16:39 petere Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.211 2000/12/03 14:50:54 thomas Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
%type <jtype> join_type
%type <list> extract_list, position_list
-%type <list> substr_list, substr_from, substr_for, trim_list
+%type <list> substr_list, trim_list
%type <list> opt_interval
+%type <node> substr_from, substr_for
%type <boolean> opt_inh_star, opt_binary, opt_using, opt_instead, opt_only
opt_with_copy, index_opt_unique, opt_verbose, opt_analyze
* when some sort of pg_privileges relation is introduced.
* - Todd A. Brandys 1998-01-01?
*/
-%token ABORT_TRANS, ACCESS, AFTER, AGGREGATE, ANALYZE, ANALYSE,
+%token ABORT_TRANS, ACCESS, AFTER, AGGREGATE, ANALYSE, ANALYZE,
BACKWARD, BEFORE, BINARY, BIT,
CACHE, CHECKPOINT, CLUSTER, COMMENT, COPY, CREATEDB, CREATEUSER, CYCLE,
DATABASE, DELIMITERS, DO,
| SUBSTRING '(' substr_list ')'
{
/* substring(A from B for C) is converted to
- * substring(A, B, C) */
+ * substring(A, B, C) - thomas 2000-11-28
+ */
FuncCall *n = makeNode(FuncCall);
n->funcname = "substring";
n->args = $3;
n->agg_distinct = FALSE;
$$ = (Node *)n;
}
- /* various trim expressions are defined in SQL92 - thomas 1997-07-19 */
| TRIM '(' BOTH trim_list ')'
{
+ /* various trim expressions are defined in SQL92
+ * - thomas 1997-07-19
+ */
FuncCall *n = makeNode(FuncCall);
n->funcname = "btrim";
n->args = $4;
{ $$ = NIL; }
;
-substr_list: expr_list substr_from substr_for
+/* SUBSTRING() arguments
+ * SQL9x defines a specific syntax for arguments to SUBSTRING():
+ * o substring(text from int for int)
+ * o substring(text from int) get entire string from starting point "int"
+ * o substring(text for int) get first "int" characters of string
+ * We also want to implement generic substring functions which accept
+ * the usual generic list of arguments. So we will accept both styles
+ * here, and convert the SQL9x style to the generic list for further
+ * processing. - thomas 2000-11-28
+ */
+substr_list: a_expr substr_from substr_for
{
- $$ = nconc(nconc($1,$2),$3);
+ $$ = makeList3($1, $2, $3);
}
- | /*EMPTY*/
- { $$ = NIL; }
- ;
-
-substr_from: FROM expr_list
- { $$ = $2; }
- | /*EMPTY*/
+ | a_expr substr_for substr_from
+ {
+ $$ = makeList3($1, $3, $2);
+ }
+ | a_expr substr_from
+ {
+ $$ = makeList2($1, $2);
+ }
+ | a_expr substr_for
{
A_Const *n = makeNode(A_Const);
n->val.type = T_Integer;
n->val.val.ival = 1;
- $$ = makeList1((Node *)n);
+ $$ = makeList3($1, (Node *)n, $2);
+ }
+ | expr_list
+ {
+ $$ = $1;
}
+ | /*EMPTY*/
+ { $$ = NIL; }
;
-substr_for: FOR expr_list
+substr_from: FROM a_expr
+ { $$ = $2; }
+ ;
+
+substr_for: FOR a_expr
{ $$ = $2; }
- | /*EMPTY*/
- { $$ = NIL; }
;
trim_list: a_expr FROM expr_list
}
;
+name: ColId { $$ = $1; };
database_name: ColId { $$ = $1; };
access_method: ColId { $$ = $1; };
attr_name: ColId { $$ = $1; };
/* Functions
* Include date/time keywords as SQL92 extension.
* Include TYPE as a SQL92 unreserved keyword. - thomas 1997-10-05
+ * Any tokens which show up as operators will screw up the parsing if
+ * allowed as identifiers, but are acceptable as ColLabels:
+ * BETWEEN, IN, IS, ISNULL, NOTNULL, OVERLAPS
+ * Thanks to Tom Lane for pointing this out. - thomas 2000-03-29
+ * We need OVERLAPS allowed as a function name to enable the implementation
+ * of argument type variations on the underlying implementation. These
+ * variations are done as SQL-language entries in the pg_proc catalog.
+ * Do not include SUBSTRING here since it has explicit productions
+ * in a_expr to support the goofy SQL9x argument syntax.
+ * - thomas 2000-11-28
*/
-name: ColId { $$ = $1; };
-func_name: ColId { $$ = xlateSqlFunc($1); };
+func_name: ColId { $$ = xlateSqlFunc($1); }
+ | BETWEEN { $$ = xlateSqlFunc("between"); }
+ | ILIKE { $$ = xlateSqlFunc("ilike"); }
+ | IN { $$ = xlateSqlFunc("in"); }
+ | IS { $$ = xlateSqlFunc("is"); }
+ | ISNULL { $$ = xlateSqlFunc("isnull"); }
+ | LIKE { $$ = xlateSqlFunc("like"); }
+ | NOTNULL { $$ = xlateSqlFunc("notnull"); }
+ | OVERLAPS { $$ = xlateSqlFunc("overlaps"); }
+ ;
file_name: Sconst { $$ = $1; };
* some of these keywords will have to be removed from this
* list due to shift/reduce conflicts in yacc. If so, move
* down to the ColLabel entity. - thomas 1997-11-06
- * Any tokens which show up as operators will screw up the parsing if
- * allowed as identifiers, but are acceptable as ColLabels:
- * BETWEEN, IN, IS, ISNULL, NOTNULL, OVERLAPS
- * Thanks to Tom Lane for pointing this out. - thomas 2000-03-29
- * Allow LIKE and ILIKE as TokenId (and ColId) to make sure that they
- * are allowed in the func_name production. Otherwise, we can't define
- * more like() and ilike() functions for new data types.
- * - thomas 2000-08-07
*/
ColId: generic { $$ = $1; }
| datetime { $$ = $1; }
| FUNCTION { $$ = "function"; }
| GRANT { $$ = "grant"; }
| HANDLER { $$ = "handler"; }
- | ILIKE { $$ = "ilike"; }
| IMMEDIATE { $$ = "immediate"; }
| INCREMENT { $$ = "increment"; }
| INDEX { $$ = "index"; }
| LANGUAGE { $$ = "language"; }
| LANCOMPILER { $$ = "lancompiler"; }
| LEVEL { $$ = "level"; }
- | LIKE { $$ = "like"; }
| LOCATION { $$ = "location"; }
| MATCH { $$ = "match"; }
| MAXVALUE { $$ = "maxvalue"; }
| GLOBAL { $$ = "global"; }
| GROUP { $$ = "group"; }
| HAVING { $$ = "having"; }
+ | ILIKE { $$ = "ilike"; }
| INITIALLY { $$ = "initially"; }
| IN { $$ = "in"; }
| INNER_P { $$ = "inner"; }
| JOIN { $$ = "join"; }
| LEADING { $$ = "leading"; }
| LEFT { $$ = "left"; }
+ | LIKE { $$ = "like"; }
+ | LIMIT { $$ = "limit"; }
| LISTEN { $$ = "listen"; }
| LOAD { $$ = "load"; }
| LOCAL { $$ = "local"; }
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.52 2000/11/11 19:55:19 thomas Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.53 2000/12/03 14:51:01 thomas Exp $
*
*-------------------------------------------------------------------------
*/
PG_RETURN_TIMEADT(result);
}
-
/* datetime_timestamp()
* Convert date and time to timestamp data type.
*/
PG_RETURN_TIMESTAMP(result);
}
-
/* time_interval()
* Convert time to interval data type.
*/
PG_RETURN_INTERVAL_P(result);
}
+/* interval_time()
+ * Convert interval to time data type.
+ */
+Datum
+interval_time(PG_FUNCTION_ARGS)
+{
+ Interval *span = PG_GETARG_INTERVAL_P(0);
+ TimeADT result;
+ Interval span1;
+
+ result = span->time;
+ TMODULO(result, span1.time, 86400e0);
+
+ PG_RETURN_TIMEADT(result);
+}
+
+/* time_pl_interval()
+ * Add interval to time.
+ */
+Datum
+time_pl_interval(PG_FUNCTION_ARGS)
+{
+ TimeADT time = PG_GETARG_TIMEADT(0);
+ Interval *span = PG_GETARG_INTERVAL_P(1);
+ TimeADT result;
+ TimeADT time1;
+
+ result = (time + span->time);
+ TMODULO(result, time1, 86400e0);
+ if (result < 0)
+ result += 86400;
+
+ PG_RETURN_TIMEADT(result);
+}
+
+/* time_mi_interval()
+ * Subtract interval from time.
+ */
+Datum
+time_mi_interval(PG_FUNCTION_ARGS)
+{
+ TimeADT time = PG_GETARG_TIMEADT(0);
+ Interval *span = PG_GETARG_INTERVAL_P(1);
+ TimeADT result;
+ TimeADT time1;
+
+ result = (time - span->time);
+ TMODULO(result, time1, 86400e0);
+ if (result < 0)
+ result += 86400;
+
+ PG_RETURN_TIMEADT(result);
+}
+
+/* interval_pl_time()
+ * Add time to interval.
+ */
+Datum
+interval_pl_time(PG_FUNCTION_ARGS)
+{
+ Datum span = PG_GETARG_DATUM(0);
+ Datum time = PG_GETARG_DATUM(1);
+
+ return DirectFunctionCall2(time_pl_interval, time, span);
+}
+
/* time_text()
* Convert time to text data type.
PG_RETURN_TIMETZADT_P(time2);
}
+/* timetz_pl_interval()
+ * Add interval to timetz.
+ */
+Datum
+timetz_pl_interval(PG_FUNCTION_ARGS)
+{
+ TimeTzADT *time = PG_GETARG_TIMETZADT_P(0);
+ Interval *span = PG_GETARG_INTERVAL_P(1);
+ TimeTzADT *result;
+ TimeTzADT time1;
+
+ result = (TimeTzADT *) palloc(sizeof(TimeTzADT));
+
+ result->time = (time->time + span->time);
+ TMODULO(result->time, time1.time, 86400e0);
+ if (result->time < 0)
+ result->time += 86400;
+ result->zone = time->zone;
+
+ PG_RETURN_TIMETZADT_P(result);
+}
+
+/* timetz_mi_interval()
+ * Subtract interval from timetz.
+ */
+Datum
+timetz_mi_interval(PG_FUNCTION_ARGS)
+{
+ TimeTzADT *time = PG_GETARG_TIMETZADT_P(0);
+ Interval *span = PG_GETARG_INTERVAL_P(1);
+ TimeTzADT *result;
+ TimeTzADT time1;
+
+ result = (TimeTzADT *) palloc(sizeof(TimeTzADT));
+
+ result->time = (time->time - span->time);
+ TMODULO(result->time, time1.time, 86400e0);
+ if (result->time < 0)
+ result->time += 86400;
+ result->zone = time->zone;
+
+ PG_RETURN_TIMETZADT_P(result);
+}
+
/* overlaps_timetz()
* Implements the SQL92 OVERLAPS operator.
* Algorithm from Date and Darwen, 1997
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: catversion.h,v 1.65 2000/11/30 01:47:33 vadim Exp $
+ * $Id: catversion.h,v 1.66 2000/12/03 14:51:09 thomas Exp $
*
*-------------------------------------------------------------------------
*/
*/
/* yyyymmddN */
-#define CATALOG_VERSION_NO 200011291
+#define CATALOG_VERSION_NO 200012030
#endif
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: pg_operator.h,v 1.84 2000/11/21 03:23:19 tgl Exp $
+ * $Id: pg_operator.h,v 1.85 2000/12/03 14:51:09 thomas Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
DATA(insert OID = 1796 ( ">>" PGUID 0 b t f 1560 23 1560 0 0 0 0 bitshiftright - - ));
DATA(insert OID = 1797 ( "||" PGUID 0 b t f 1560 1560 1560 0 0 0 0 bitcat - - ));
+DATA(insert OID = 1800 ( "+" PGUID 0 b t f 1083 1186 1083 0 0 0 0 time_pl_interval - - ));
+DATA(insert OID = 1801 ( "-" PGUID 0 b t f 1083 1186 1083 0 0 0 0 time_mi_interval - - ));
+DATA(insert OID = 1802 ( "+" PGUID 0 b t f 1266 1186 1266 0 0 0 0 timetz_pl_interval - - ));
+DATA(insert OID = 1803 ( "-" PGUID 0 b t f 1266 1186 1266 0 0 0 0 timetz_mi_interval - - ));
+
DATA(insert OID = 1804 ( "=" PGUID 0 b t f 1562 1562 16 1804 1805 1806 1806 varbiteq eqsel eqjoinsel ));
DATA(insert OID = 1805 ( "<>" PGUID 0 b t f 1562 1562 16 1805 1804 0 0 varbitne neqsel neqjoinsel ));
DATA(insert OID = 1806 ( "<" PGUID 0 b t f 1562 1562 16 1807 1809 0 0 varbitlt scalarltsel scalarltjoinsel ));
DATA(insert OID = 1808 ( "<=" PGUID 0 b t f 1562 1562 16 1809 1807 0 0 varbitle scalarltsel scalarltjoinsel ));
DATA(insert OID = 1809 ( ">=" PGUID 0 b t f 1562 1562 16 1808 1806 0 0 varbitge scalargtsel scalargtjoinsel ));
+DATA(insert OID = 1849 ( "+" PGUID 0 b t f 1186 1083 1083 0 0 0 0 interval_pl_time - - ));
+
DATA(insert OID = 1862 ( "=" PGUID 0 b t f 21 20 16 1868 1863 95 412 int28eq eqsel eqjoinsel ));
DATA(insert OID = 1863 ( "<>" PGUID 0 b t f 21 20 16 1869 1862 0 0 int28ne neqsel neqjoinsel ));
DATA(insert OID = 1864 ( "<" PGUID 0 b t f 21 20 16 1871 1867 0 0 int28lt scalarltsel scalarltjoinsel ));
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: pg_proc.h,v 1.175 2000/11/21 03:23:19 tgl Exp $
+ * $Id: pg_proc.h,v 1.176 2000/12/03 14:51:09 thomas Exp $
*
* NOTES
* The script catalog/genbki.sh reads this file and generates .bki
DATA(insert OID = 1304 ( overlaps PGUID 12 f t t t 4 f 16 "1184 1184 1184 1184" 100 0 0 100 overlaps_timestamp - ));
DESCR("SQL92 interval comparison");
-DATA(insert OID = 1305 ( overlaps PGUID 14 f t t t 4 f 16 "1184 1186 1184 1186" 100 0 0 100 "select overlaps($1, ($1 + $2), $3, ($3 + $4))" - ));
+DATA(insert OID = 1305 ( overlaps PGUID 14 f t t t 4 f 16 "1184 1186 1184 1186" 100 0 0 100 "select ($1, ($1 + $2)) overlaps ($3, ($3 + $4))" - ));
DESCR("SQL92 interval comparison");
-DATA(insert OID = 1306 ( overlaps PGUID 14 f t t t 4 f 16 "1184 1184 1184 1186" 100 0 0 100 "select overlaps($1, $2, $3, ($3 + $4))" - ));
+DATA(insert OID = 1306 ( overlaps PGUID 14 f t t t 4 f 16 "1184 1184 1184 1186" 100 0 0 100 "select ($1, $2) overlaps ($3, ($3 + $4))" - ));
DESCR("SQL92 interval comparison");
-DATA(insert OID = 1307 ( overlaps PGUID 14 f t t t 4 f 16 "1184 1186 1184 1184" 100 0 0 100 "select overlaps($1, ($1 + $2), $3, $4)" - ));
+DATA(insert OID = 1307 ( overlaps PGUID 14 f t t t 4 f 16 "1184 1186 1184 1184" 100 0 0 100 "select ($1, ($1 + $2)) overlaps ($3, $4)" - ));
DESCR("SQL92 interval comparison");
DATA(insert OID = 1308 ( overlaps PGUID 12 f t t t 4 f 16 "1083 1083 1083 1083" 100 0 0 100 overlaps_time - ));
DESCR("SQL92 interval comparison");
-DATA(insert OID = 1309 ( overlaps PGUID 14 f t t t 4 f 16 "1083 1186 1083 1186" 100 0 0 100 "select overlaps($1, ($1 + $2), $3, ($3 + $4))" - ));
+DATA(insert OID = 1309 ( overlaps PGUID 14 f t t t 4 f 16 "1083 1186 1083 1186" 100 0 0 100 "select ($1, ($1 + $2)) overlaps ($3, ($3 + $4))" - ));
DESCR("SQL92 interval comparison");
-DATA(insert OID = 1310 ( overlaps PGUID 14 f t t t 4 f 16 "1083 1083 1083 1186" 100 0 0 100 "select overlaps($1, $2, $3, ($3 + $4))" - ));
+DATA(insert OID = 1310 ( overlaps PGUID 14 f t t t 4 f 16 "1083 1083 1083 1186" 100 0 0 100 "select ($1, $2) overlaps ($3, ($3 + $4))" - ));
DESCR("SQL92 interval comparison");
-DATA(insert OID = 1311 ( overlaps PGUID 14 f t t t 4 f 16 "1083 1186 1083 1083" 100 0 0 100 "select overlaps($1, ($1 + $2), $3, $4)" - ));
+DATA(insert OID = 1311 ( overlaps PGUID 14 f t t t 4 f 16 "1083 1186 1083 1083" 100 0 0 100 "select ($1, ($1 + $2)) overlaps ($3, $4)" - ));
DESCR("SQL92 interval comparison");
DATA(insert OID = 1314 ( timestamp_cmp PGUID 12 f t f t 2 f 23 "1184 1184" 100 0 0 100 timestamp_cmp - ));
DATA(insert OID = 1418 ( isnotfalse PGUID 12 f t t f 1 f 16 "16" 100 0 0 100 isnotfalse - ));
DESCR("bool is not false (ie, true or unknown)");
+DATA(insert OID = 1419 ( time PGUID 12 f t f t 1 f 1083 "1186" 100 0 0 100 interval_time - ));
+DESCR("convert interval to time");
+
DATA(insert OID = 1421 ( box PGUID 12 f t t t 2 f 603 "600 600" 100 0 0 100 points_box - ));
DESCR("convert points to box");
DATA(insert OID = 1422 ( box_add PGUID 12 f t t t 2 f 603 "603 600" 100 0 0 100 box_add - ));
DATA(insert OID = 936 ( substring PGUID 12 f t t t 3 f 25 "25 23 23" 100 0 0 100 text_substr - ));
DESCR("return portion of string");
-DATA(insert OID = 937 ( substring PGUID 14 f t t t 2 f 25 "25 23" 100 0 0 100 "select \042substring\042($1, $2, -1)" - ));
+DATA(insert OID = 937 ( substring PGUID 14 f t t t 2 f 25 "25 23" 100 0 0 100 "select substring($1, $2, -1)" - ));
DESCR("return portion of string");
/* for multi-byte support */
DATA(insert OID = 1698 ( position PGUID 12 f t t t 2 f 23 "1560 1560" 100 0 0 100 bitposition - ));
DESCR("return position of sub-bitstring");
-DATA(insert OID = 1699 ( substring PGUID 14 f t t t 2 f 1560 "1560 23" 100 0 0 100 "select \042substring\042($1, $2, -1)" - ));
+DATA(insert OID = 1699 ( substring PGUID 14 f t t t 2 f 1560 "1560 23" 100 0 0 100 "select substring($1, $2, -1)" - ));
DESCR("return portion of bitstring");
DESCR("(internal)");
DATA(insert OID = 1746 ( float8 PGUID 12 f t t t 1 f 701 "1700" 100 0 0 100 numeric_float8 - ));
DESCR("(internal)");
+
+DATA(insert OID = 1747 ( time_pl_interval PGUID 12 f t t t 2 f 1083 "1083 1186" 100 0 0 100 time_pl_interval - ));
+DESCR("plus");
+DATA(insert OID = 1748 ( time_mi_interval PGUID 12 f t t t 2 f 1083 "1083 1186" 100 0 0 100 time_mi_interval - ));
+DESCR("minus");
+DATA(insert OID = 1749 ( timetz_pl_interval PGUID 12 f t t t 2 f 1266 "1266 1186" 100 0 0 100 timetz_pl_interval - ));
+DESCR("plus");
+DATA(insert OID = 1750 ( timetz_mi_interval PGUID 12 f t t t 2 f 1266 "1266 1186" 100 0 0 100 timetz_mi_interval - ));
+DESCR("minus");
+
DATA(insert OID = 1764 ( numeric_inc PGUID 12 f t t t 1 f 1700 "1700" 100 0 0 100 numeric_inc - ));
DESCR("increment by one");
DATA(insert OID = 1766 ( numeric_smaller PGUID 12 f t t t 2 f 1700 "1700 1700" 100 0 0 100 numeric_smaller - ));
DATA(insert OID = 1847 ( to_ascii PGUID 12 f t t t 2 f 25 "25 19" 100 0 0 100 to_ascii_encname - ));
DESCR("encode text from encoding to ASCII text");
+DATA(insert OID = 1848 ( interval_pl_time PGUID 12 f t t t 2 f 1083 "1186 1083" 100 0 0 100 interval_pl_time - ));
+DESCR("plus");
+
DATA(insert OID = 1850 ( int28eq PGUID 12 f t t t 2 f 16 "21 20" 100 0 0 100 int28eq - ));
DESCR("equal");
DATA(insert OID = 1851 ( int28ne PGUID 12 f t t t 2 f 16 "21 20" 100 0 0 100 int28ne - ));
#define HAS_TEST_AND_SET
+#elif defined(__s390__)
+typedef unsigned int slock_t;
+
+#define HAS_TEST_AND_SET
+
#endif
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: date.h,v 1.6 2000/11/11 19:55:39 thomas Exp $
+ * $Id: date.h,v 1.7 2000/12/03 14:51:11 thomas Exp $
*
*-------------------------------------------------------------------------
*/
extern Datum time_smaller(PG_FUNCTION_ARGS);
extern Datum timestamp_time(PG_FUNCTION_ARGS);
extern Datum time_interval(PG_FUNCTION_ARGS);
+extern Datum interval_time(PG_FUNCTION_ARGS);
extern Datum text_time(PG_FUNCTION_ARGS);
extern Datum time_text(PG_FUNCTION_ARGS);
+extern Datum time_pl_interval(PG_FUNCTION_ARGS);
+extern Datum time_mi_interval(PG_FUNCTION_ARGS);
+extern Datum interval_pl_time(PG_FUNCTION_ARGS);
extern Datum timetz_in(PG_FUNCTION_ARGS);
extern Datum timetz_out(PG_FUNCTION_ARGS);
extern Datum datetimetz_timestamp(PG_FUNCTION_ARGS);
extern Datum text_timetz(PG_FUNCTION_ARGS);
extern Datum timetz_text(PG_FUNCTION_ARGS);
+extern Datum timetz_pl_interval(PG_FUNCTION_ARGS);
+extern Datum timetz_mi_interval(PG_FUNCTION_ARGS);
#endif /* DATE_H */
Fri Dec 31 23:59:59 1999 PST
(1 row)
+--
+-- time, interval arithmetic
+--
+SELECT CAST(time '01:02' AS interval) AS "+01:02";
+ +01:02
+-----------------
+ @ 1 hour 2 mins
+(1 row)
+
+SELECT CAST(interval '02:03' AS time) AS "02:03:00";
+ 02:03:00
+----------
+ 02:03:00
+(1 row)
+
+SELECT time '01:30' + interval '02:01' AS "03:31:00";
+ 03:31:00
+----------
+ 03:31:00
+(1 row)
+
+SELECT time '01:30' - interval '02:01' AS "23:29:00";
+ 23:29:00
+----------
+ 23:29:00
+(1 row)
+
+SELECT time '02:30' + interval '36:01' AS "14:31:00";
+ 14:31:00
+----------
+ 14:31:00
+(1 row)
+
+SELECT time '03:30' + interval '1 month 04:01' AS "07:31:00";
+ 07:31:00
+----------
+ 07:31:00
+(1 row)
+
+SELECT interval '04:30' - time '01:02' AS "+03:28";
+ +03:28
+-------------------
+ @ 3 hours 28 mins
+(1 row)
+
+SELECT CAST(time with time zone '01:02-08' AS interval) AS "+00:01";
+ERROR: Cannot cast type 'timetz' to 'interval'
+SELECT CAST(interval '02:03' AS time with time zone) AS "02:03:00-08";
+ERROR: Cannot cast type 'interval' to 'timetz'
+SELECT time with time zone '01:30' + interval '02:01' AS "03:31:00-08";
+ 03:31:00-08
+-------------
+ 03:31:00-08
+(1 row)
+
+SELECT time with time zone '01:30-08' - interval '02:01' AS "23:29:00-08";
+ 23:29:00-08
+-------------
+ 23:29:00-08
+(1 row)
+
+SELECT time with time zone '02:30-08' + interval '36:01' AS "14:31:00-08";
+ 14:31:00-08
+-------------
+ 14:31:00-08
+(1 row)
+
+SELECT time with time zone '03:30' + interval '1 month 04:01' AS "07:31:00-08";
+ 07:31:00-08
+-------------
+ 07:31:00-08
+(1 row)
+
+SELECT interval '04:30' - time with time zone '01:02' AS "+03:28";
+ERROR: Unable to identify an operator '-' for types 'interval' and 'timetz'
+ You will have to retype this query using an explicit cast
+-- We get 100 rows when run in GMT...
+SELECT t.d1 + i.f1 AS "102" FROM TIMESTAMP_TBL t, INTERVAL_TBL i
+ WHERE t.d1 BETWEEN '1990-01-01' AND '2001-01-01'
+ AND i.f1 BETWEEN '00:00' AND '23:00';
+ 102
+---------------------------------
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01.00 1997 PST
+ Mon Feb 10 22:32:01.00 1997 PST
+ Mon Feb 10 17:33:02.00 1997 PST
+ Mon Feb 10 22:32:02.00 1997 PST
+ Mon Feb 10 17:33:01.40 1997 PST
+ Mon Feb 10 22:32:01.40 1997 PST
+ Mon Feb 10 17:33:01.50 1997 PST
+ Mon Feb 10 22:32:01.50 1997 PST
+ Mon Feb 10 17:33:01.60 1997 PST
+ Mon Feb 10 22:32:01.60 1997 PST
+ Thu Jan 02 00:01:00 1997 PST
+ Thu Jan 02 05:00:00 1997 PST
+ Thu Jan 02 03:05:05 1997 PST
+ Thu Jan 02 08:04:05 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Tue Jun 10 17:33:01 1997 PDT
+ Tue Jun 10 22:32:01 1997 PDT
+ Wed Mar 15 08:15:01 2000 PST
+ Wed Mar 15 13:14:01 2000 PST
+ Wed Mar 15 04:15:02 2000 PST
+ Wed Mar 15 09:14:02 2000 PST
+ Wed Mar 15 02:15:03 2000 PST
+ Wed Mar 15 07:14:03 2000 PST
+ Wed Mar 15 03:15:04 2000 PST
+ Wed Mar 15 08:14:04 2000 PST
+ Wed Mar 15 01:15:05 2000 PST
+ Wed Mar 15 06:14:05 2000 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:00 1997 PST
+ Mon Feb 10 22:32:00 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Mon Feb 10 09:33:01 1997 PST
+ Mon Feb 10 14:32:01 1997 PST
+ Mon Feb 10 09:33:01 1997 PST
+ Mon Feb 10 14:32:01 1997 PST
+ Mon Feb 10 09:33:01 1997 PST
+ Mon Feb 10 14:32:01 1997 PST
+ Tue Jun 10 18:33:01 1997 PDT
+ Tue Jun 10 23:32:01 1997 PDT
+ Mon Feb 10 17:33:01 1997 PST
+ Mon Feb 10 22:32:01 1997 PST
+ Tue Feb 11 17:33:01 1997 PST
+ Tue Feb 11 22:32:01 1997 PST
+ Wed Feb 12 17:33:01 1997 PST
+ Wed Feb 12 22:32:01 1997 PST
+ Thu Feb 13 17:33:01 1997 PST
+ Thu Feb 13 22:32:01 1997 PST
+ Fri Feb 14 17:33:01 1997 PST
+ Fri Feb 14 22:32:01 1997 PST
+ Sat Feb 15 17:33:01 1997 PST
+ Sat Feb 15 22:32:01 1997 PST
+ Sun Feb 16 17:33:01 1997 PST
+ Sun Feb 16 22:32:01 1997 PST
+ Sun Feb 16 17:33:01 1997 PST
+ Sun Feb 16 22:32:01 1997 PST
+ Wed Feb 28 17:33:01 1996 PST
+ Wed Feb 28 22:32:01 1996 PST
+ Thu Feb 29 17:33:01 1996 PST
+ Thu Feb 29 22:32:01 1996 PST
+ Fri Mar 01 17:33:01 1996 PST
+ Fri Mar 01 22:32:01 1996 PST
+ Mon Dec 30 17:33:01 1996 PST
+ Mon Dec 30 22:32:01 1996 PST
+ Tue Dec 31 17:33:01 1996 PST
+ Tue Dec 31 22:32:01 1996 PST
+ Wed Jan 01 17:33:01 1997 PST
+ Wed Jan 01 22:32:01 1997 PST
+ Fri Feb 28 17:33:01 1997 PST
+ Fri Feb 28 22:32:01 1997 PST
+ Sat Mar 01 17:33:01 1997 PST
+ Sat Mar 01 22:32:01 1997 PST
+ Tue Dec 30 17:33:01 1997 PST
+ Tue Dec 30 22:32:01 1997 PST
+ Wed Dec 31 17:33:01 1997 PST
+ Wed Dec 31 22:32:01 1997 PST
+ Fri Dec 31 17:33:01 1999 PST
+ Fri Dec 31 22:32:01 1999 PST
+ Sat Jan 01 17:33:01 2000 PST
+ Sat Jan 01 22:32:01 2000 PST
+ Sun Dec 31 17:33:01 2000 PST
+ Sun Dec 31 22:32:01 2000 PST
+(102 rows)
+
+SELECT t.d1 - i.f1 AS "102" FROM TIMESTAMP_TBL t, INTERVAL_TBL i
+ WHERE t.d1 BETWEEN '1990-01-01' AND '2001-01-01'
+ AND i.f1 BETWEEN '00:00' AND '23:00';
+ 102
+---------------------------------
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01.00 1997 PST
+ Mon Feb 10 12:32:01.00 1997 PST
+ Mon Feb 10 17:31:02.00 1997 PST
+ Mon Feb 10 12:32:02.00 1997 PST
+ Mon Feb 10 17:31:01.40 1997 PST
+ Mon Feb 10 12:32:01.40 1997 PST
+ Mon Feb 10 17:31:01.50 1997 PST
+ Mon Feb 10 12:32:01.50 1997 PST
+ Mon Feb 10 17:31:01.60 1997 PST
+ Mon Feb 10 12:32:01.60 1997 PST
+ Wed Jan 01 23:59:00 1997 PST
+ Wed Jan 01 19:00:00 1997 PST
+ Thu Jan 02 03:03:05 1997 PST
+ Wed Jan 01 22:04:05 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Tue Jun 10 17:31:01 1997 PDT
+ Tue Jun 10 12:32:01 1997 PDT
+ Wed Mar 15 08:13:01 2000 PST
+ Wed Mar 15 03:14:01 2000 PST
+ Wed Mar 15 04:13:02 2000 PST
+ Tue Mar 14 23:14:02 2000 PST
+ Wed Mar 15 02:13:03 2000 PST
+ Tue Mar 14 21:14:03 2000 PST
+ Wed Mar 15 03:13:04 2000 PST
+ Tue Mar 14 22:14:04 2000 PST
+ Wed Mar 15 01:13:05 2000 PST
+ Tue Mar 14 20:14:05 2000 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:00 1997 PST
+ Mon Feb 10 12:32:00 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Mon Feb 10 09:31:01 1997 PST
+ Mon Feb 10 04:32:01 1997 PST
+ Mon Feb 10 09:31:01 1997 PST
+ Mon Feb 10 04:32:01 1997 PST
+ Mon Feb 10 09:31:01 1997 PST
+ Mon Feb 10 04:32:01 1997 PST
+ Tue Jun 10 18:31:01 1997 PDT
+ Tue Jun 10 13:32:01 1997 PDT
+ Mon Feb 10 17:31:01 1997 PST
+ Mon Feb 10 12:32:01 1997 PST
+ Tue Feb 11 17:31:01 1997 PST
+ Tue Feb 11 12:32:01 1997 PST
+ Wed Feb 12 17:31:01 1997 PST
+ Wed Feb 12 12:32:01 1997 PST
+ Thu Feb 13 17:31:01 1997 PST
+ Thu Feb 13 12:32:01 1997 PST
+ Fri Feb 14 17:31:01 1997 PST
+ Fri Feb 14 12:32:01 1997 PST
+ Sat Feb 15 17:31:01 1997 PST
+ Sat Feb 15 12:32:01 1997 PST
+ Sun Feb 16 17:31:01 1997 PST
+ Sun Feb 16 12:32:01 1997 PST
+ Sun Feb 16 17:31:01 1997 PST
+ Sun Feb 16 12:32:01 1997 PST
+ Wed Feb 28 17:31:01 1996 PST
+ Wed Feb 28 12:32:01 1996 PST
+ Thu Feb 29 17:31:01 1996 PST
+ Thu Feb 29 12:32:01 1996 PST
+ Fri Mar 01 17:31:01 1996 PST
+ Fri Mar 01 12:32:01 1996 PST
+ Mon Dec 30 17:31:01 1996 PST
+ Mon Dec 30 12:32:01 1996 PST
+ Tue Dec 31 17:31:01 1996 PST
+ Tue Dec 31 12:32:01 1996 PST
+ Wed Jan 01 17:31:01 1997 PST
+ Wed Jan 01 12:32:01 1997 PST
+ Fri Feb 28 17:31:01 1997 PST
+ Fri Feb 28 12:32:01 1997 PST
+ Sat Mar 01 17:31:01 1997 PST
+ Sat Mar 01 12:32:01 1997 PST
+ Tue Dec 30 17:31:01 1997 PST
+ Tue Dec 30 12:32:01 1997 PST
+ Wed Dec 31 17:31:01 1997 PST
+ Wed Dec 31 12:32:01 1997 PST
+ Fri Dec 31 17:31:01 1999 PST
+ Fri Dec 31 12:32:01 1999 PST
+ Sat Jan 01 17:31:01 2000 PST
+ Sat Jan 01 12:32:01 2000 PST
+ Sun Dec 31 17:31:01 2000 PST
+ Sun Dec 31 12:32:01 2000 PST
+(102 rows)
+
+SELECT t.f1 + i.f1 AS "80" FROM TIME_TBL t, INTERVAL_TBL i;
+ 80
+----------
+ 00:01:00
+ 05:00:00
+ 00:00:00
+ 00:00:00
+ 00:00:00
+ 23:59:46
+ 02:03:04
+ 00:00:00
+ 00:00:00
+ 12:00:00
+ 01:01:00
+ 06:00:00
+ 01:00:00
+ 01:00:00
+ 01:00:00
+ 00:59:46
+ 03:03:04
+ 01:00:00
+ 01:00:00
+ 13:00:00
+ 02:04:00
+ 07:03:00
+ 02:03:00
+ 02:03:00
+ 02:03:00
+ 02:02:46
+ 04:06:04
+ 02:03:00
+ 02:03:00
+ 14:03:00
+ 12:00:00
+ 16:59:00
+ 11:59:00
+ 11:59:00
+ 11:59:00
+ 11:58:46
+ 14:02:04
+ 11:59:00
+ 11:59:00
+ 23:59:00
+ 12:01:00
+ 17:00:00
+ 12:00:00
+ 12:00:00
+ 12:00:00
+ 11:59:46
+ 14:03:04
+ 12:00:00
+ 12:00:00
+ 00:00:00
+ 12:02:00
+ 17:01:00
+ 12:01:00
+ 12:01:00
+ 12:01:00
+ 12:00:46
+ 14:04:04
+ 12:01:00
+ 12:01:00
+ 00:01:00
+ 00:00:00
+ 04:59:00
+ 23:59:00
+ 23:59:00
+ 23:59:00
+ 23:58:46
+ 02:02:04
+ 23:59:00
+ 23:59:00
+ 11:59:00
+ 00:00:59
+ 04:59:59
+ 23:59:59
+ 23:59:59
+ 23:59:59
+ 23:59:45
+ 02:03:03
+ 23:59:59
+ 23:59:59
+ 11:59:59
+(80 rows)
+
+SELECT t.f1 - i.f1 AS "80" FROM TIME_TBL t, INTERVAL_TBL i;
+ 80
+----------
+ 23:59:00
+ 19:00:00
+ 00:00:00
+ 00:00:00
+ 00:00:00
+ 00:00:14
+ 21:56:56
+ 00:00:00
+ 00:00:00
+ 12:00:00
+ 00:59:00
+ 20:00:00
+ 01:00:00
+ 01:00:00
+ 01:00:00
+ 01:00:14
+ 22:56:56
+ 01:00:00
+ 01:00:00
+ 13:00:00
+ 02:02:00
+ 21:03:00
+ 02:03:00
+ 02:03:00
+ 02:03:00
+ 02:03:14
+ 23:59:56
+ 02:03:00
+ 02:03:00
+ 14:03:00
+ 11:58:00
+ 06:59:00
+ 11:59:00
+ 11:59:00
+ 11:59:00
+ 11:59:14
+ 09:55:56
+ 11:59:00
+ 11:59:00
+ 23:59:00
+ 11:59:00
+ 07:00:00
+ 12:00:00
+ 12:00:00
+ 12:00:00
+ 12:00:14
+ 09:56:56
+ 12:00:00
+ 12:00:00
+ 00:00:00
+ 12:00:00
+ 07:01:00
+ 12:01:00
+ 12:01:00
+ 12:01:00
+ 12:01:14
+ 09:57:56
+ 12:01:00
+ 12:01:00
+ 00:01:00
+ 23:58:00
+ 18:59:00
+ 23:59:00
+ 23:59:00
+ 23:59:00
+ 23:59:14
+ 21:55:56
+ 23:59:00
+ 23:59:00
+ 11:59:00
+ 23:58:59
+ 18:59:59
+ 23:59:59
+ 23:59:59
+ 23:59:59
+ 00:00:13
+ 21:56:55
+ 23:59:59
+ 23:59:59
+ 11:59:59
+(80 rows)
+
+SELECT t.f2 + i.f1 AS "80" FROM TIME_TBL t, INTERVAL_TBL i;
+ 80
+-------------
+ 00:01:00-07
+ 05:00:00-07
+ 00:00:00-07
+ 00:00:00-07
+ 00:00:00-07
+ 23:59:46-07
+ 02:03:04-07
+ 00:00:00-07
+ 00:00:00-07
+ 12:00:00-07
+ 01:01:00-07
+ 06:00:00-07
+ 01:00:00-07
+ 01:00:00-07
+ 01:00:00-07
+ 00:59:46-07
+ 03:03:04-07
+ 01:00:00-07
+ 01:00:00-07
+ 13:00:00-07
+ 02:04:00-07
+ 07:03:00-07
+ 02:03:00-07
+ 02:03:00-07
+ 02:03:00-07
+ 02:02:46-07
+ 04:06:04-07
+ 02:03:00-07
+ 02:03:00-07
+ 14:03:00-07
+ 12:00:00-07
+ 16:59:00-07
+ 11:59:00-07
+ 11:59:00-07
+ 11:59:00-07
+ 11:58:46-07
+ 14:02:04-07
+ 11:59:00-07
+ 11:59:00-07
+ 23:59:00-07
+ 12:01:00-07
+ 17:00:00-07
+ 12:00:00-07
+ 12:00:00-07
+ 12:00:00-07
+ 11:59:46-07
+ 14:03:04-07
+ 12:00:00-07
+ 12:00:00-07
+ 00:00:00-07
+ 12:02:00-07
+ 17:01:00-07
+ 12:01:00-07
+ 12:01:00-07
+ 12:01:00-07
+ 12:00:46-07
+ 14:04:04-07
+ 12:01:00-07
+ 12:01:00-07
+ 00:01:00-07
+ 00:00:00-07
+ 04:59:00-07
+ 23:59:00-07
+ 23:59:00-07
+ 23:59:00-07
+ 23:58:46-07
+ 02:02:04-07
+ 23:59:00-07
+ 23:59:00-07
+ 11:59:00-07
+ 00:00:59-07
+ 04:59:59-07
+ 23:59:59-07
+ 23:59:59-07
+ 23:59:59-07
+ 23:59:45-07
+ 02:03:03-07
+ 23:59:59-07
+ 23:59:59-07
+ 11:59:59-07
+(80 rows)
+
+SELECT t.f2 - i.f1 AS "80" FROM TIME_TBL t, INTERVAL_TBL i;
+ 80
+-------------
+ 23:59:00-07
+ 19:00:00-07
+ 00:00:00-07
+ 00:00:00-07
+ 00:00:00-07
+ 00:00:14-07
+ 21:56:56-07
+ 00:00:00-07
+ 00:00:00-07
+ 12:00:00-07
+ 00:59:00-07
+ 20:00:00-07
+ 01:00:00-07
+ 01:00:00-07
+ 01:00:00-07
+ 01:00:14-07
+ 22:56:56-07
+ 01:00:00-07
+ 01:00:00-07
+ 13:00:00-07
+ 02:02:00-07
+ 21:03:00-07
+ 02:03:00-07
+ 02:03:00-07
+ 02:03:00-07
+ 02:03:14-07
+ 23:59:56-07
+ 02:03:00-07
+ 02:03:00-07
+ 14:03:00-07
+ 11:58:00-07
+ 06:59:00-07
+ 11:59:00-07
+ 11:59:00-07
+ 11:59:00-07
+ 11:59:14-07
+ 09:55:56-07
+ 11:59:00-07
+ 11:59:00-07
+ 23:59:00-07
+ 11:59:00-07
+ 07:00:00-07
+ 12:00:00-07
+ 12:00:00-07
+ 12:00:00-07
+ 12:00:14-07
+ 09:56:56-07
+ 12:00:00-07
+ 12:00:00-07
+ 00:00:00-07
+ 12:00:00-07
+ 07:01:00-07
+ 12:01:00-07
+ 12:01:00-07
+ 12:01:00-07
+ 12:01:14-07
+ 09:57:56-07
+ 12:01:00-07
+ 12:01:00-07
+ 00:01:00-07
+ 23:58:00-07
+ 18:59:00-07
+ 23:59:00-07
+ 23:59:00-07
+ 23:59:00-07
+ 23:59:14-07
+ 21:55:56-07
+ 23:59:00-07
+ 23:59:00-07
+ 11:59:00-07
+ 23:58:59-07
+ 18:59:59-07
+ 23:59:59-07
+ 23:59:59-07
+ 23:59:59-07
+ 00:00:13-07
+ 21:56:55-07
+ 23:59:59-07
+ 23:59:59-07
+ 11:59:59-07
+(80 rows)
+
+-- SQL9x OVERLAPS operator
+SELECT (timestamp '2000-11-27', timestamp '2000-11-28')
+ OVERLAPS (timestamp '2000-11-27 12:00', timestamp '2000-11-30') AS "True";
+ True
+------
+ t
+(1 row)
+
+SELECT (timestamp '2000-11-26', timestamp '2000-11-27')
+ OVERLAPS (timestamp '2000-11-27 12:00', timestamp '2000-11-30') AS "False";
+ False
+-------
+ f
+(1 row)
+
+SELECT (timestamp '2000-11-27', timestamp '2000-11-28')
+ OVERLAPS (timestamp '2000-11-27 12:00', interval '1 day') AS "True";
+ True
+------
+ t
+(1 row)
+
+SELECT (timestamp '2000-11-27', interval '12 hours')
+ OVERLAPS (timestamp '2000-11-27 12:00', timestamp '2000-11-30') AS "False";
+ False
+-------
+ f
+(1 row)
+
+SELECT (timestamp '2000-11-27', interval '12 hours')
+ OVERLAPS (timestamp '2000-11-27', interval '12 hours') AS "True";
+ True
+------
+ t
+(1 row)
+
+SELECT (timestamp '2000-11-27', interval '12 hours')
+ OVERLAPS (timestamp '2000-11-27 12:00', interval '12 hours') AS "False";
+ False
+-------
+ f
+(1 row)
+
+SELECT (time '00:00', time '01:00')
+ OVERLAPS (time '00:30', time '01:30') AS "True";
+ True
+------
+ t
+(1 row)
+
+SELECT (time '00:00', interval '1 hour')
+ OVERLAPS (time '00:30', interval '1 hour') AS "True";
+ True
+------
+ t
+(1 row)
+
+SELECT (time '00:00', interval '1 hour')
+ OVERLAPS (time '01:30', interval '1 hour') AS "False";
+ False
+-------
+ f
+(1 row)
+
+SELECT (time '00:00', interval '1 hour')
+ OVERLAPS (time '01:30', interval '1 day') AS "True";
+ True
+------
+ f
+(1 row)
+
CREATE TABLE TEMP_TIMESTAMP (f1 timestamp);
-- get some candidate input values
INSERT INTO TEMP_TIMESTAMP (f1)
--
-- TIME simple math
--
-SELECT f1 + time '00:01' AS "Eight" FROM TIME_TBL;
- Eight
---------------------
- @ 1 min
- @ 1 hour 1 min
- @ 2 hours 4 mins
- @ 12 hours
- @ 12 hours 1 min
- @ 12 hours 2 mins
- @ 1 day
- @ 1 day 59.99 secs
-(8 rows)
-
-SELECT f1 + time '01:00' AS "Eight" FROM TIME_TBL;
- Eight
-----------------------------
- @ 1 hour
- @ 2 hours
- @ 3 hours 3 mins
- @ 12 hours 59 mins
- @ 13 hours
- @ 13 hours 1 min
- @ 1 day 59 mins
- @ 1 day 59 mins 59.99 secs
-(8 rows)
-
-SELECT f1 + time '00:00:01.11' AS "Eight" FROM TIME_TBL;
- Eight
-------------------------------
- @ 1.11 secs
- @ 1 hour 1.11 secs
- @ 2 hours 3 mins 1.11 secs
- @ 11 hours 59 mins 1.11 secs
- @ 12 hours 1.11 secs
- @ 12 hours 1 min 1.11 secs
- @ 23 hours 59 mins 1.11 secs
- @ 1 day 1.10 secs
-(8 rows)
-
-SELECT f1 + time '00:00:59.99' AS "Eight" FROM TIME_TBL;
- Eight
--------------------------------
- @ 59.99 secs
- @ 1 hour 59.99 secs
- @ 2 hours 3 mins 59.99 secs
- @ 11 hours 59 mins 59.99 secs
- @ 12 hours 59.99 secs
- @ 12 hours 1 min 59.99 secs
- @ 23 hours 59 mins 59.99 secs
- @ 1 day 59.98 secs
-(8 rows)
-
-SELECT f1 - '00:01' AS "Eight" FROM TIME_TBL;
- Eight
--------------------------------
- @ 1 min ago
- @ 59 mins
- @ 2 hours 2 mins
- @ 11 hours 58 mins
- @ 11 hours 59 mins
- @ 12 hours
- @ 23 hours 58 mins
- @ 23 hours 58 mins 59.99 secs
-(8 rows)
-
-SELECT f1 - '01:00' AS "Eight" FROM TIME_TBL;
- Eight
--------------------------------
- @ 1 hour ago
- @ 0
- @ 1 hour 3 mins
- @ 10 hours 59 mins
- @ 11 hours
- @ 11 hours 1 min
- @ 22 hours 59 mins
- @ 22 hours 59 mins 59.99 secs
-(8 rows)
-
-SELECT f1 - '00:00:01.11' AS "Eight" FROM TIME_TBL;
- Eight
--------------------------------
- @ 1.11 secs ago
- @ 59 mins 58.89 secs
- @ 2 hours 2 mins 58.89 secs
- @ 11 hours 58 mins 58.89 secs
- @ 11 hours 59 mins 58.89 secs
- @ 12 hours 58.89 secs
- @ 23 hours 58 mins 58.89 secs
- @ 23 hours 59 mins 58.88 secs
-(8 rows)
-
-SELECT f1 - '00:00:59.99' AS "Eight" FROM TIME_TBL;
- Eight
-------------------------------
- @ 59.99 secs ago
- @ 59 mins 0.01 secs
- @ 2 hours 2 mins 0.01 secs
- @ 11 hours 58 mins 0.01 secs
- @ 11 hours 59 mins 0.01 secs
- @ 12 hours 0.01 secs
- @ 23 hours 58 mins 0.01 secs
- @ 23 hours 59 mins
-(8 rows)
-
---
--- TIME WITH TIME ZONE simple math
---
-/*
--- Not yet implemented
--- Thomas 2000-09-09
-SELECT f2 + time '00:01' AS "" FROM TIME_TBL;
-SELECT f2 + time '01:00' AS "" FROM TIME_TBL;
-SELECT f2 + time '00:00:01.11' AS "" FROM TIME_TBL;
-SELECT f2 + '00:00:59.99' AS "" FROM TIME_TBL;
-SELECT f2 - '00:01' AS "" FROM TIME_TBL;
-SELECT f2 - '01:00' AS "" FROM TIME_TBL;
-SELECT f2 - '00:00:01.11' AS "" FROM TIME_TBL;
-SELECT f2 - '00:00:59.99' AS "" FROM TIME_TBL;
-*/
+-- We now make a distinction between time and intervals,
+-- and adding two times together makes no sense at all.
+-- Leave in one query to show that it is rejected,
+-- and do the rest of the testing in horology.sql
+-- where we do mixed-type arithmetic. - thomas 2000-12-02
+SELECT f1 + time '00:01' AS "Illegal" FROM TIME_TBL;
+ERROR: Unable to identify an operator '+' for types 'time' and 'time'
+ You will have to retype this query using an explicit cast
+SELECT f2 + time with time zone '00:01' AS "Illegal" FROM TIME_TBL;
+ERROR: Unable to identify an operator '+' for types 'timetz' and 'timetz'
+ You will have to retype this query using an explicit cast
--
SELECT timestamp '1996-03-01' - interval '1 second' AS "Feb 29";
+
SELECT timestamp '1999-03-01' - interval '1 second' AS "Feb 28";
+
SELECT timestamp '2000-03-01' - interval '1 second' AS "Feb 29";
+
SELECT timestamp '1999-12-01' + interval '1 month - 1 second' AS "Dec 31";
+--
+-- time, interval arithmetic
+--
+
+SELECT CAST(time '01:02' AS interval) AS "+01:02";
+
+SELECT CAST(interval '02:03' AS time) AS "02:03:00";
+
+SELECT time '01:30' + interval '02:01' AS "03:31:00";
+
+SELECT time '01:30' - interval '02:01' AS "23:29:00";
+
+SELECT time '02:30' + interval '36:01' AS "14:31:00";
+
+SELECT time '03:30' + interval '1 month 04:01' AS "07:31:00";
+
+SELECT interval '04:30' - time '01:02' AS "+03:28";
+
+SELECT CAST(time with time zone '01:02-08' AS interval) AS "+00:01";
+
+SELECT CAST(interval '02:03' AS time with time zone) AS "02:03:00-08";
+
+SELECT time with time zone '01:30' + interval '02:01' AS "03:31:00-08";
+
+SELECT time with time zone '01:30-08' - interval '02:01' AS "23:29:00-08";
+
+SELECT time with time zone '02:30-08' + interval '36:01' AS "14:31:00-08";
+
+SELECT time with time zone '03:30' + interval '1 month 04:01' AS "07:31:00-08";
+
+SELECT interval '04:30' - time with time zone '01:02' AS "+03:28";
+
+-- We get 100 rows when run in GMT...
+SELECT t.d1 + i.f1 AS "102" FROM TIMESTAMP_TBL t, INTERVAL_TBL i
+ WHERE t.d1 BETWEEN '1990-01-01' AND '2001-01-01'
+ AND i.f1 BETWEEN '00:00' AND '23:00';
+
+SELECT t.d1 - i.f1 AS "102" FROM TIMESTAMP_TBL t, INTERVAL_TBL i
+ WHERE t.d1 BETWEEN '1990-01-01' AND '2001-01-01'
+ AND i.f1 BETWEEN '00:00' AND '23:00';
+
+SELECT t.f1 + i.f1 AS "80" FROM TIME_TBL t, INTERVAL_TBL i;
+
+SELECT t.f1 - i.f1 AS "80" FROM TIME_TBL t, INTERVAL_TBL i;
+
+SELECT t.f2 + i.f1 AS "80" FROM TIME_TBL t, INTERVAL_TBL i;
+
+SELECT t.f2 - i.f1 AS "80" FROM TIME_TBL t, INTERVAL_TBL i;
+
+-- SQL9x OVERLAPS operator
+
+SELECT (timestamp '2000-11-27', timestamp '2000-11-28')
+ OVERLAPS (timestamp '2000-11-27 12:00', timestamp '2000-11-30') AS "True";
+
+SELECT (timestamp '2000-11-26', timestamp '2000-11-27')
+ OVERLAPS (timestamp '2000-11-27 12:00', timestamp '2000-11-30') AS "False";
+
+SELECT (timestamp '2000-11-27', timestamp '2000-11-28')
+ OVERLAPS (timestamp '2000-11-27 12:00', interval '1 day') AS "True";
+
+SELECT (timestamp '2000-11-27', interval '12 hours')
+ OVERLAPS (timestamp '2000-11-27 12:00', timestamp '2000-11-30') AS "False";
+
+SELECT (timestamp '2000-11-27', interval '12 hours')
+ OVERLAPS (timestamp '2000-11-27', interval '12 hours') AS "True";
+
+SELECT (timestamp '2000-11-27', interval '12 hours')
+ OVERLAPS (timestamp '2000-11-27 12:00', interval '12 hours') AS "False";
+
+SELECT (time '00:00', time '01:00')
+ OVERLAPS (time '00:30', time '01:30') AS "True";
+
+SELECT (time '00:00', interval '1 hour')
+ OVERLAPS (time '00:30', interval '1 hour') AS "True";
+
+SELECT (time '00:00', interval '1 hour')
+ OVERLAPS (time '01:30', interval '1 hour') AS "False";
+
+SELECT (time '00:00', interval '1 hour')
+ OVERLAPS (time '01:30', interval '1 day') AS "True";
+
CREATE TABLE TEMP_TIMESTAMP (f1 timestamp);
-- get some candidate input values
--
-- TIME simple math
--
+-- We now make a distinction between time and intervals,
+-- and adding two times together makes no sense at all.
+-- Leave in one query to show that it is rejected,
+-- and do the rest of the testing in horology.sql
+-- where we do mixed-type arithmetic. - thomas 2000-12-02
-SELECT f1 + time '00:01' AS "Eight" FROM TIME_TBL;
+SELECT f1 + time '00:01' AS "Illegal" FROM TIME_TBL;
-SELECT f1 + time '01:00' AS "Eight" FROM TIME_TBL;
-
-SELECT f1 + time '00:00:01.11' AS "Eight" FROM TIME_TBL;
-
-SELECT f1 + time '00:00:59.99' AS "Eight" FROM TIME_TBL;
-
-SELECT f1 - '00:01' AS "Eight" FROM TIME_TBL;
-
-SELECT f1 - '01:00' AS "Eight" FROM TIME_TBL;
-
-SELECT f1 - '00:00:01.11' AS "Eight" FROM TIME_TBL;
-
-SELECT f1 - '00:00:59.99' AS "Eight" FROM TIME_TBL;
-
---
--- TIME WITH TIME ZONE simple math
---
-
-/*
--- Not yet implemented
--- Thomas 2000-09-09
-SELECT f2 + time '00:01' AS "" FROM TIME_TBL;
-
-SELECT f2 + time '01:00' AS "" FROM TIME_TBL;
-
-SELECT f2 + time '00:00:01.11' AS "" FROM TIME_TBL;
-
-SELECT f2 + '00:00:59.99' AS "" FROM TIME_TBL;
-
-SELECT f2 - '00:01' AS "" FROM TIME_TBL;
-
-SELECT f2 - '01:00' AS "" FROM TIME_TBL;
-
-SELECT f2 - '00:00:01.11' AS "" FROM TIME_TBL;
-
-SELECT f2 - '00:00:59.99' AS "" FROM TIME_TBL;
-*/
+SELECT f2 + time with time zone '00:01' AS "Illegal" FROM TIME_TBL;
OSDN Git Service
