Define routines and catalog entries for string min()/max() functions.

Extend new type coersion techniques to aggregates.

diff --git a/src/include/catalog/pg_aggregate.h b/src/include/catalog/pg_aggregate.h
index a4acb01..e2f84d6 100644 (file)
--- a/src/include/catalog/pg_aggregate.h
+++ b/src/include/catalog/pg_aggregate.h
@@ -7,7 +7,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pg_aggregate.h,v 1.17 1998/09/01 04:34:45 momjian Exp $
+ * $Id: pg_aggregate.h,v 1.18 1998/12/08 06:18:11 thomas Exp $
  *
  * NOTES
  *       the genbki.sh script reads this file and generates .bki
@@ -115,6 +115,7 @@ DATA(insert OID = 0 ( max   PGUID float8larger              - - 1084 1084 0 1084 _null_ _null_
 DATA(insert OID = 0 ( max      PGUID cashlarger                - -  790  790 0  790 _null_ _null_ ));
 DATA(insert OID = 0 ( max      PGUID datetime_larger   - - 1184 1184 0 1184 _null_ _null_ ));
 DATA(insert OID = 0 ( max      PGUID timespan_larger   - - 1186 1186 0 1186 _null_ _null_ ));
+DATA(insert OID = 0 ( max      PGUID text_larger               - -   25   25 0   25 _null_ _null_ ));
 
 DATA(insert OID = 0 ( min      PGUID int8smaller               - -   20   20 0   20 _null_ _null_ ));
 DATA(insert OID = 0 ( min      PGUID int4smaller               - -   23   23 0   23 _null_ _null_ ));
@@ -127,6 +128,7 @@ DATA(insert OID = 0 ( min   PGUID float8smaller             - - 1084 1084 0 1084 _null_ _null
 DATA(insert OID = 0 ( min      PGUID cashsmaller               - -  790  790 0  790 _null_ _null_ ));
 DATA(insert OID = 0 ( min      PGUID datetime_smaller  - - 1184 1184 0 1184 _null_ _null_ ));
 DATA(insert OID = 0 ( min      PGUID timespan_smaller  - - 1186 1186 0 1186 _null_ _null_ ));
+DATA(insert OID = 0 ( min      PGUID text_smaller              - -   25   25 0   25 _null_ _null_ ));
 
 DATA(insert OID = 0 ( count PGUID - int4inc - 0 0 23 23 _null_ 0 ));
 

diff --git a/src/include/catalog/pg_proc.h b/src/include/catalog/pg_proc.h
index a53c2bc..66cd7ec 100644 (file)
--- a/src/include/catalog/pg_proc.h
+++ b/src/include/catalog/pg_proc.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pg_proc.h,v 1.84 1998/11/17 14:36:51 thomas Exp $
+ * $Id: pg_proc.h,v 1.85 1998/12/08 06:18:11 thomas Exp $
  *
  * NOTES
  *       The script catalog/genbki.sh reads this file and generates .bki
@@ -435,11 +435,11 @@ DESCR("subtract");
 DATA(insert OID = 207 (  float4abs                PGUID 11 f t f 1 f 700 "700 700" 100 0 0 100  foo bar ));
 DESCR("absolute value");
 DATA(insert OID = 208 (  float4inc                PGUID 11 f t f 1 f 700 "700" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("increment");
 DATA(insert OID = 209 (  float4larger     PGUID 11 f t f 2 f 700 "700 700" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("larger of two");
 DATA(insert OID = 211 (  float4smaller    PGUID 11 f t f 2 f 700 "700 700" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("smaller of two");
 
 DATA(insert OID = 212 (  int4um                           PGUID 11 f t f 1 f 23 "23" 100 0 0 100  foo bar ));
 DESCR("subtract");
@@ -463,11 +463,11 @@ DESCR("subtract");
 DATA(insert OID = 221 (  float8abs                PGUID 11 f t f 1 f 701 "701" 100 0 0 100  foo bar ));
 DESCR("absolute value");
 DATA(insert OID = 222 (  float8inc                PGUID 11 f t f 1 f 701 "701" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("increment");
 DATA(insert OID = 223 (  float8larger     PGUID 11 f t f 2 f 701 "701 701" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("larger of two");
 DATA(insert OID = 224 (  float8smaller    PGUID 11 f t f 2 f 701 "701 701" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("smaller of two");
 
 DATA(insert OID = 225 (  lseg_center      PGUID 11 f t f 1 f 600 "601" 100 0 0 100  foo bar ));
 DESCR("center of");
@@ -827,14 +827,18 @@ DATA(insert OID = 452 (  hashfloat8                  PGUID 11 f t f 2 f 23 "701 701" 100 0 0
 DESCR("hash");
 DATA(insert OID = 453 (  hashoid                  PGUID 11 f t f 2 f 23 "26 26" 100 0 0 100  foo bar ));
 DESCR("hash");
-DATA(insert OID = 457 (  hashoid8                 PGUID 11 f t f 2 f 23 "30 30" 100 0 0 100  foo bar ));
-DESCR("hash");
 DATA(insert OID = 454 (  hashchar                 PGUID 11 f t f 2 f 23 "18 18" 100 0 0 100  foo bar ));
 DESCR("hash");
 DATA(insert OID = 455 (  hashname                 PGUID 11 f t f 2 f 23 "19 19" 100 0 0 100  foo bar ));
 DESCR("hash");
 DATA(insert OID = 456 (  hashtext                 PGUID 11 f t f 2 f 23 "25 25" 100 0 0 100  foo bar ));
 DESCR("hash");
+DATA(insert OID = 457 (  hashoid8                 PGUID 11 f t f 2 f 23 "30 30" 100 0 0 100  foo bar ));
+DESCR("hash");
+DATA(insert OID = 458 (  text_larger      PGUID 11 f t f 2 f 25 "25 25" 100 0 0 100  foo bar ));
+DESCR("larger of two");
+DATA(insert OID = 459 (  text_smaller     PGUID 11 f t f 2 f 25 "25 25" 100 0 0 100  foo bar ));
+DESCR("smaller of two");
 
 DATA(insert OID = 460 (  int8in                           PGUID 11 f t f 1 f 20 "0" 100 0 0 100  foo bar ));
 DESCR("(internal)");
@@ -1011,9 +1015,9 @@ DATA(insert OID = 765 (  lo_export                   PGUID 11 f t f 2 f 23 "26 25" 100 0 0 100
 DESCR("large object export");
 
 DATA(insert OID = 766 (  int4inc                  PGUID 11 f t f 1 f 23 "23" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("increment");
 DATA(insert OID = 767 (  int2inc                  PGUID 11 f t f 1 f 21 "21" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("increment");
 DATA(insert OID = 768 (  int4larger               PGUID 11 f t f 2 f 23 "23 23" 100 0 0 100  foo bar ));
 DESCR("larger of two");
 DATA(insert OID = 769 (  int4smaller      PGUID 11 f t f 2 f 23 "23 23" 100 0 0 100  foo bar ));
@@ -1153,9 +1157,9 @@ DESCR("multiply");
 DATA(insert OID =  897 (  cash_div_flt8                   PGUID 11 f t f 2 f 790 "790 701" 100 0 0 100  foo bar ));
 DESCR("divide");
 DATA(insert OID =  898 (  cashlarger      PGUID 11 f t f 2 f 790 "790 790" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("larger of two");
 DATA(insert OID =  899 (  cashsmaller     PGUID 11 f t f 2 f 790 "790 790" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("smaller of two");
 
 DATA(insert OID =  919 (  flt8_mul_cash                   PGUID 11 f t f 2 f 790 "701 790" 100 0 0 100  foo bar ));
 DESCR("multiply");
@@ -1352,9 +1356,9 @@ DESCR("not equal");
 DATA(insert OID = 1107 (  time_cmp                PGUID 11 f t f 2 f 23 "1083 1083" 100 0 0 100  foo bar ));
 DESCR("less-equal-greater");
 DATA(insert OID = 1138 (  date_larger     PGUID 11 f t f 2 f 1082 "1082 1082" 100 0 0 100      foo bar ));
-DESCR("");
+DESCR("larger of two");
 DATA(insert OID = 1139 (  date_smaller    PGUID 11 f t f 2 f 1082 "1082 1082" 100 0 0 100      foo bar ));
-DESCR("");
+DESCR("smaller of two");
 DATA(insert OID = 1140 (  date_mi                 PGUID 11 f t f 2 f 23 "1082 1082" 100 0 0 100  foo bar ));
 DESCR("subtract");
 DATA(insert OID = 1141 (  date_pli                PGUID 11 f t f 2 f 1082 "1082 23" 100 0 0 100  foo bar ));
@@ -1457,13 +1461,13 @@ DESCR("convert");
 DATA(insert OID = 1194 (  timespan_reltime      PGUID 11 f t f 1 f  703 "1186" 100 0 0 100  foo bar ));
 DESCR("convert");
 DATA(insert OID = 1195 (  datetime_smaller      PGUID 11 f t f 2 f 1184 "1184 1184" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("smaller of two");
 DATA(insert OID = 1196 (  datetime_larger       PGUID 11 f t f 2 f 1184 "1184 1184" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("larger of two");
 DATA(insert OID = 1197 (  timespan_smaller      PGUID 11 f t f 2 f 1186 "1186 1186" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("smaller of two");
 DATA(insert OID = 1198 (  timespan_larger       PGUID 11 f t f 2 f 1186 "1186 1186" 100 0 0 100  foo bar ));
-DESCR("");
+DESCR("larger of two");
 DATA(insert OID = 1199 (  datetime_age          PGUID 11 f t f 2 f 1186 "1184 1184" 100 0 0 100  foo bar ));
 DESCR("date difference preserving months and years");
 

diff --git a/src/include/parser/parse_func.h b/src/include/parser/parse_func.h
index a493342..e5cf03d 100644 (file)
--- a/src/include/parser/parse_func.h
+++ b/src/include/parser/parse_func.h
@@ -1,12 +1,12 @@
 /*-------------------------------------------------------------------------
  *
- * catalog_utils.h--
+ * parse_func.h--
  *
  *
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: parse_func.h,v 1.12 1998/10/08 18:30:38 momjian Exp $
+ * $Id: parse_func.h,v 1.13 1998/12/08 06:18:27 thomas Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -42,12 +42,14 @@ typedef struct _CandidateList
        struct _CandidateList *next;
 }                 *CandidateList;
 
-extern Node *ParseNestedFuncOrColumn(ParseState *pstate, Attr *attr,
+extern Node *
+ParseNestedFuncOrColumn(ParseState *pstate, Attr *attr,
                                                int *curr_resno, int precedence);
-extern Node *ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
+extern Node *
+ParseFuncOrColumn(ParseState *pstate, char *funcname, List *fargs,
                                  int *curr_resno, int precedence);
 
 extern void
-                       func_error(char *caller, char *funcname, int nargs, Oid *argtypes, char *msg);
+func_error(char *caller, char *funcname, int nargs, Oid *argtypes, char *msg);
 
 #endif  /* PARSE_FUNC_H */

diff --git a/src/include/utils/builtins.h b/src/include/utils/builtins.h
index f92cce6..a87c0c9 100644 (file)
--- a/src/include/utils/builtins.h
+++ b/src/include/utils/builtins.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: builtins.h,v 1.70 1998/11/17 14:36:37 thomas Exp $
+ * $Id: builtins.h,v 1.71 1998/12/08 06:18:34 thomas Exp $
  *
  * NOTES
  *       This should normally only be included by fmgr.h.
@@ -447,6 +447,8 @@ extern bool text_lt(text *arg1, text *arg2);
 extern bool text_le(text *arg1, text *arg2);
 extern bool text_gt(text *arg1, text *arg2);
 extern bool text_ge(text *arg1, text *arg2);
+extern text *text_larger(text *arg1, text *arg2);
+extern text *text_smaller(text *arg1, text *arg2);
 extern int32 textlen(text *arg);
 extern int32 textoctetlen(text *arg);
 extern int32 textpos(text *arg1, text *arg2);