Add ^ precidence.

doc/TODO

@@ -29,8 +29,10 @@ PARSER
 * Select a[1] FROM test fails, it needs test.a[1]
 * Array index references without table name cause problems
 * Update table SET table.value = 3 fails
-* Creating index of timestamp fails
+* Creating index of TIMESTAMP fails, rename to DATETIME(Thomas)
 * SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo
+* INSERT ... SELECT ... GROUP BY groups by target columns not source columns
+* CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT
 
 VIEWS
 
@@ -80,7 +82,8 @@ TYPES
 * Large objects
 	o Fix large object mapping scheme, own typeid or reltype(Peter)
 	o Allow large text type to use large objects(Peter)
-	o Not to stuff everything as files in a single directory
+	o Not to stuff everything as files in a single directory, hash dirs
+	o Allow large object vacuuming
 * Allow pg_descriptions when creating types, tables, columns, and functions
 * Add IPv6 capability to INET/CIDR types
 * Make a separate SERIAL type?
@@ -90,6 +93,7 @@ TYPES
 * Allow LOCALE on a per-column basis, default to ASCII
 * Allow array on int8[]
 * Remove Money type, add money formatting for decimal type
+* Fix typein/out functions to not be user-callable
 
 VIEWS
 
@@ -132,6 +136,7 @@ CLIENTS
 * Allow psql \copy to allow delimiters
 * Add a function to return the last inserted oid, for use in psql scripts
 * Allow psql to print nulls as distinct from ""(?)
+* PQrequestCancel() be able to terminate backend waiting for lock
 
 MISC
 
@@ -182,17 +187,23 @@ INDEXES
   a matching index
 * Improve LIMIT processing by using index to limit rows processed
 * Have optimizer take LIMIT into account when considering index scans
+* Make index creation use psort code, because it is now faster(Vadim)
+* Create more system table indexes for faster cache lookups
+* fix indexscan() so it does leak memory by not requiring caller to free
+* Improve _bt_binsrch() to handle equal keys better, remove _bt_firsteq()(Tom)
 
 CACHE
 
 * Cache most recent query plan(s?)
 * Shared catalog cache, reduce lseek()'s by caching table size in shared area
+* elog() flushes cache, try invalidating just entries from current xact,
+  perhaps using invalidation cache
+
 
 MISC
 
 * Allow compression of log and meta data
 * Update pg_statistic table to remove operator column
-* Make index creation use psort code, because it is now faster(Vadim)
 * Allow char() not to use variable-sized header to reduce disk size
 * Do async I/O to do better read-ahead of data
 * Fix memory exhaustion when using many OR's
@@ -201,15 +212,15 @@ MISC
 * Use mmap() rather than SYSV shared memory(?)
 * Process const = const parts of OR clause in separate pass
 * Make oid use oidin/oidout not int4in/int4out in pg_type.h
-* Create more system table indexes for faster cache lookups
 * Improve Subplan list handling
 * Allow Subplans to use efficient joins(hash, merge) with upper variable
 * use fmgr_info()/fmgr_faddr() instead of fmgr() calls in high-traffic
   places, like GROUP BY, UNIQUE, index processing, etc.
 * improve dynamic memory allocation by introducing tuple-context memory
   allocation
-* fix indexscan() so it does leak memory by not requiring caller to free
+* fix memory leak in cache code when non-existant table is referenced
-* fix memory leak in cache code when non-existant table is refer
+* In WHERE x=3 AND x=y, add y=3
+* pass atttypmod through parser in more cases(Bruce)
 
 SOURCE CODE
 -----------

src/backend/parser/gram.y

@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.86 1999/07/04 04:55:59 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.87 1999/07/08 00:00:42 momjian Exp $
  *
  * HISTORY
  *	  AUTHOR			DATE			MAJOR EVENT
@@ -349,7 +349,7 @@ Oid	param_type(int t); /* used in parse_expr.c */
 %nonassoc	NULL_P
 %nonassoc	IS
 %left		'+' '-'
-%left		'*' '/' '%'
+%left		'*' '/' '%' '^'
 %left		'|'				/* this is the relation union op, not logical or */
 /* Unary Operators */
 %right		':'
@@ -973,6 +973,8 @@ default_expr:  AexprConst
 				{	$$ = nconc( $1, lcons( makeString( "%"), $3)); }
 			| default_expr '*' default_expr
 				{	$$ = nconc( $1, lcons( makeString( "*"), $3)); }
+			| default_expr '^' default_expr
+				{	$$ = nconc( $1, lcons( makeString( "^"), $3)); }
 			| default_expr '=' default_expr
 				{	elog(ERROR,"boolean expressions not supported in DEFAULT"); }
 			| default_expr '<' default_expr
@@ -1121,6 +1123,8 @@ constraint_expr:  AexprConst
 				{	$$ = nconc( $1, lcons( makeString( "%"), $3)); }
 			| constraint_expr '*' constraint_expr
 				{	$$ = nconc( $1, lcons( makeString( "*"), $3)); }
+			| constraint_expr '^' constraint_expr
+				{	$$ = nconc( $1, lcons( makeString( "^"), $3)); }
 			| constraint_expr '=' constraint_expr
 				{	$$ = nconc( $1, lcons( makeString( "="), $3)); }
 			| constraint_expr '<' constraint_expr
@@ -3641,8 +3645,12 @@ a_expr:  attr opt_indirection
 				{	$$ = doNegate($2); }
 		| '%' a_expr
 				{	$$ = makeA_Expr(OP, "%", NULL, $2); }
+		| '^' a_expr
+				{	$$ = makeA_Expr(OP, "^", NULL, $2); }
 		| a_expr '%'
 				{	$$ = makeA_Expr(OP, "%", $1, NULL); }
+		| a_expr '^'
+				{	$$ = makeA_Expr(OP, "^", $1, NULL); }
 		| a_expr '+' a_expr
 				{	$$ = makeA_Expr(OP, "+", $1, $3); }
 		| a_expr '-' a_expr
@@ -3653,6 +3661,8 @@ a_expr:  attr opt_indirection
 				{	$$ = makeA_Expr(OP, "%", $1, $3); }
 		| a_expr '*' a_expr
 				{	$$ = makeA_Expr(OP, "*", $1, $3); }
+		| a_expr '^' a_expr
+				{	$$ = makeA_Expr(OP, "^", $1, $3); }
 		| a_expr '<' a_expr
 				{	$$ = makeA_Expr(OP, "<", $1, $3); }
 		| a_expr '>' a_expr
@@ -4302,8 +4312,12 @@ b_expr:  attr opt_indirection
 				{	$$ = doNegate($2); }
 		| '%' b_expr
 				{	$$ = makeA_Expr(OP, "%", NULL, $2); }
+		| '^' b_expr
+				{	$$ = makeA_Expr(OP, "^", NULL, $2); }
 		| b_expr '%'
 				{	$$ = makeA_Expr(OP, "%", $1, NULL); }
+		| b_expr '^'
+				{	$$ = makeA_Expr(OP, "^", $1, NULL); }
 		| b_expr '+' b_expr
 				{	$$ = makeA_Expr(OP, "+", $1, $3); }
 		| b_expr '-' b_expr
@@ -4312,6 +4326,8 @@ b_expr:  attr opt_indirection
 				{	$$ = makeA_Expr(OP, "/", $1, $3); }
 		| b_expr '%' b_expr
 				{	$$ = makeA_Expr(OP, "%", $1, $3); }
+		| b_expr '^' b_expr
+				{	$$ = makeA_Expr(OP, "^", $1, $3); }
 		| b_expr '*' b_expr
 				{	$$ = makeA_Expr(OP, "*", $1, $3); }
 		| ':' b_expr

src/backend/parser/scan.l

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.49 1999/05/12 07:12:51 thomas Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.50 1999/07/08 00:00:43 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -155,7 +155,7 @@ identifier		{letter}{letter_or_digit}*
 
 typecast		"::"
 
-self			[,()\[\].;$\:\+\-\*\/\%\<\>\=\|]
+self			[,()\[\].;$\:\+\-\*\/\%\^\<\>\=\|]
 op_and_self		[\~\!\@\#\^\&\|\`\?\$\:\+\-\*\/\%\<\>\=]
 operator		{op_and_self}+