*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/executor/execQual.c,v 1.98 2002/07/18 04:41:44 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/executor/execQual.c,v 1.99 2002/07/18 17:14:19 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "executor/execdebug.h"
#include "executor/functions.h"
#include "executor/nodeSubplan.h"
-#include "nodes/makefuncs.h"
-#include "parser/parse.h"
-#include "parser/parse_expr.h"
#include "utils/array.h"
#include "utils/builtins.h"
#include "utils/fcache.h"
static Datum ExecEvalOr(Expr *orExpr, ExprContext *econtext, bool *isNull);
static Datum ExecEvalCase(CaseExpr *caseExpr, ExprContext *econtext,
bool *isNull, ExprDoneCond *isDone);
-static Datum ExecEvalBetweenExpr(BetweenExpr *btest, ExprContext *econtext,
- bool *isNull, ExprDoneCond *isDone);
static Datum ExecEvalNullTest(NullTest *ntest, ExprContext *econtext,
bool *isNull, ExprDoneCond *isDone);
static Datum ExecEvalBooleanTest(BooleanTest *btest, ExprContext *econtext,
}
/* ----------------------------------------------------------------
- * ExecEvalBetweenExpr
- *
- * Evaluate a BetweenExpr node. Result is
- * a boolean. If any of the three expression
- * parameters are NULL, result is NULL.
- * ----------------------------------------------------------------
- */
-static Datum
-ExecEvalBetweenExpr(BetweenExpr *btest,
- ExprContext *econtext,
- bool *isNull,
- ExprDoneCond *isDone)
-{
- Datum expr_result;
- Datum lexpr_result;
- Datum rexpr_result;
- bool result = FALSE;
- Node *expr_const;
- Node *lexpr_const;
- Node *rexpr_const;
-
- /* Evaluate subexpressons and Auto-return if we find a NULL */
- expr_result = ExecEvalExpr(btest->expr, econtext, isNull, isDone);
- if (*isNull)
- return (Datum) 0;
-
- lexpr_result = ExecEvalExpr(btest->lexpr, econtext, isNull, isDone);
- if (*isNull)
- return (Datum) 0;
-
- rexpr_result = ExecEvalExpr(btest->rexpr, econtext, isNull, isDone);
- if (*isNull)
- return (Datum) 0;
-
- /*
- * Make a Constant out of our newly found Datums
- * Types were coerced during transformExpr to be common
- */
- expr_const = (Node *) makeConst(btest->typeId, btest->typeLen,
- expr_result, false,
- btest->typeByVal, false, true);
-
- lexpr_const = (Node *) makeConst(btest->typeId, btest->typeLen,
- lexpr_result, false,
- btest->typeByVal, false, true);
-
- rexpr_const = (Node *) makeConst(btest->typeId, btest->typeLen,
- rexpr_result, false,
- btest->typeByVal, false, true);
-
- /*
- * Test the between case which for the straight forward method.
- * expr >= lexpr and expr <= rexpr
- *
- * Of course, can't use makeA_Expr here without requiring another
- * transform, so we've already prepared a gthan and lthan operator
- * set in the parsing stage.
- */
- btest->gthan->args = makeList2(expr_const, lexpr_const);
- if (DatumGetBool(ExecEvalExpr((Node *) btest->gthan,
- econtext,
- isNull, isDone)))
- {
- btest->lthan->args = makeList2(expr_const, rexpr_const);
- result = DatumGetBool(ExecEvalExpr((Node *) btest->lthan,
- econtext,
- isNull, isDone));
- }
-
- /*
- * If this is a symmetric BETWEEN, we win a second try with the operators
- * reversed. (a >= min(b,c) and a <= max(b,c))
- */
- if (!result && btest->symmetric)
- {
- btest->gthan->args = makeList2(expr_const, rexpr_const);
- if (DatumGetBool(ExecEvalExpr((Node *) btest->gthan,
- econtext,
- isNull, isDone)))
- {
- btest->lthan->args = makeList2(expr_const, lexpr_const);
- result = DatumGetBool(ExecEvalExpr((Node *) btest->lthan,
- econtext,
- isNull, isDone));
- }
- }
-
- /* Apply NOT as necessary */
- if (btest->not)
- result = !result;
-
- /* We're not returning a null */
- *isNull = false;
-
- return (BoolGetDatum(result));
-}
-
-/* ----------------------------------------------------------------
* ExecEvalNullTest
*
* Evaluate a NullTest node.
isNull,
isDone);
break;
- case T_BetweenExpr:
- retDatum = ExecEvalBetweenExpr((BetweenExpr *) expression,
- econtext,
- isNull,
- isDone);
- break;
case T_NullTest:
retDatum = ExecEvalNullTest((NullTest *) expression,
econtext,
isNull,
isDone);
break;
+
default:
elog(ERROR, "ExecEvalExpr: unknown expression type %d",
nodeTag(expression));
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.195 2002/07/18 04:41:44 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.196 2002/07/18 17:14:19 momjian Exp $
*
*-------------------------------------------------------------------------
*/
}
/* ----------------
- * _copyBetweenExpr
- * ----------------
- */
-static BetweenExpr *
-_copyBetweenExpr(BetweenExpr *from)
-{
- BetweenExpr *newnode = makeNode(BetweenExpr);
-
- /*
- * copy remainder of node
- */
- Node_Copy(from, newnode, expr);
- Node_Copy(from, newnode, lexpr);
- Node_Copy(from, newnode, rexpr);
- Node_Copy(from, newnode, lthan);
- Node_Copy(from, newnode, gthan);
- newnode->symmetric = from->symmetric;
- newnode->not = from->not;
- newnode->typeId = from->typeId;
- newnode->typeLen = from->typeLen;
- newnode->typeByVal = from->typeByVal;
-
- return newnode;
-}
-
-/* ----------------
* _copyCaseWhen
* ----------------
*/
case T_CaseExpr:
retval = _copyCaseExpr(from);
break;
- case T_BetweenExpr:
- retval = _copyBetweenExpr(from);
- break;
case T_CaseWhen:
retval = _copyCaseWhen(from);
break;
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.142 2002/07/18 04:41:44 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.143 2002/07/18 17:14:19 momjian Exp $
*
*-------------------------------------------------------------------------
*/
}
static bool
-_equalBetweenExpr(BetweenExpr *a, BetweenExpr *b)
-{
- if (!equal(a->expr, b->expr))
- return false;
- if (!equal(a->lexpr, b->lexpr))
- return false;
- if (!equal(a->rexpr, b->rexpr))
- return false;
- if (!equal(a->lthan, b->lthan))
- return false;
- if (!equal(a->gthan, b->gthan))
- return false;
- if (a->symmetric != b->symmetric)
- return false;
- if (a->not != b->not)
- return false;
- if (a->typeId != b->typeId)
- return false;
- if (a->typeLen != b->typeLen)
- return false;
- if (a->typeByVal != b->typeByVal)
- return false;
-
- return true;
-}
-
-static bool
_equalCaseWhen(CaseWhen *a, CaseWhen *b)
{
if (!equal(a->expr, b->expr))
case T_CaseExpr:
retval = _equalCaseExpr(a, b);
break;
- case T_BetweenExpr:
- retval = _equalBetweenExpr(a, b);
- break;
case T_CaseWhen:
retval = _equalCaseWhen(a, b);
break;
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.164 2002/07/18 04:41:44 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.165 2002/07/18 17:14:19 momjian Exp $
*
* NOTES
* Every (plan) node in POSTGRES has an associated "out" routine which
}
/*
- * BetweenExpr
- */
-static void
-_outBetweenExpr(StringInfo str, BetweenExpr *node)
-{
- appendStringInfo(str, " BETWEENEXPR :expr ");
- _outNode(str, node->expr);
-
- appendStringInfo(str, " :not %s",
- booltostr(node->not));
-
- appendStringInfo(str, " :symmetric %s",
- booltostr(node->symmetric));
-
- appendStringInfo(str, " :lexpr ");
- _outNode(str, node->lexpr);
-
- appendStringInfo(str, " :rexpr ");
- _outNode(str, node->rexpr);
-
- appendStringInfo(str, " :gthan ");
- _outNode(str, node->gthan);
-
- appendStringInfo(str, " :lthan ");
- _outNode(str, node->lthan);
-
- appendStringInfo(str, " :typeid %u :typelen %d :typebyval %s",
- node->typeId, node->typeLen,
- booltostr(node->typeByVal));
-}
-
-/*
* NullTest
*/
static void
case T_CaseExpr:
_outCaseExpr(str, obj);
break;
- case T_BetweenExpr:
- _outBetweenExpr(str, obj);
- break;
case T_CaseWhen:
_outCaseWhen(str, obj);
break;
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.125 2002/07/18 04:41:45 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.126 2002/07/18 17:14:19 momjian Exp $
*
* NOTES
* Most of the read functions for plan nodes are tested. (In fact, they
return local_node;
}
-static BetweenExpr *
-_readBetweenExpr(void)
-{
- BetweenExpr *local_node;
- char *token;
- int length;
-
- local_node = makeNode(BetweenExpr);
-
- token = pg_strtok(&length); /* eat :expr */
- local_node->expr = nodeRead(true);
-
- token = pg_strtok(&length); /* eat :not */
- token = pg_strtok(&length); /* get not */
- local_node->not = strtobool(token);
-
- token = pg_strtok(&length); /* eat :symmetric */
- token = pg_strtok(&length); /* get symmetric */
- local_node->symmetric = strtobool(token);
-
- token = pg_strtok(&length); /* eat :lexpr */
- local_node->lexpr = nodeRead(true);
-
- token = pg_strtok(&length); /* eat :rexpr */
- local_node->rexpr = nodeRead(true);
-
- token = pg_strtok(&length); /* eat :gthan */
- local_node->gthan = nodeRead(true);
-
- token = pg_strtok(&length); /* eat :lthan */
- local_node->lthan = nodeRead(true);
-
- token = pg_strtok(&length); /* eat :typeid */
- token = pg_strtok(&length); /* get typeid */
- local_node->typeId = atooid(token);
-
- token = pg_strtok(&length); /* eat :typelen */
- token = pg_strtok(&length); /* get typelen */
- local_node->typeLen = atoui(token);
-
- token = pg_strtok(&length); /* eat :typebyval */
- token = pg_strtok(&length); /* get typebyval */
- local_node->typeByVal = strtobool(token);
-
- return local_node;
-}
-
/* ----------------
* _readNullTest
*
return_value = _readNullTest();
else if (length == 11 && strncmp(token, "BOOLEANTEST", length) == 0)
return_value = _readBooleanTest();
- else if (length == 11 && strncmp(token, "BETWEENEXPR", length) == 0)
- return_value = _readBetweenExpr();
else
elog(ERROR, "badly formatted planstring \"%.10s\"...", token);
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.104 2002/07/18 04:41:45 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.105 2002/07/18 17:14:19 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
case T_Var:
case T_Param:
case T_RangeTblRef:
+ /* primitive node types with no subnodes */
+ break;
case T_Expr:
{
Expr *expr = (Expr *) node;
return true;
}
break;
- case T_BetweenExpr:
- {
- BetweenExpr *betwn = (BetweenExpr *) node;
-
- if (walker(betwn->expr, context))
- return true;
- if (walker(betwn->lexpr, context))
- return true;
- if (walker(betwn->rexpr, context))
- return true;
- }
- break;
default:
elog(ERROR, "expression_tree_walker: Unexpected node type %d",
nodeTag(node));
case T_Var:
case T_Param:
case T_RangeTblRef:
+ /* primitive node types with no subnodes */
+ return (Node *) copyObject(node);
case T_Expr:
{
Expr *expr = (Expr *) node;
return (Node *) newnode;
}
break;
- case T_BetweenExpr:
- {
- BetweenExpr *bexpr = (BetweenExpr *) node;
- BetweenExpr *newnode;
-
- FLATCOPY(newnode, bexpr, BetweenExpr);
- MUTATE(newnode->expr, bexpr->expr, Node *);
- MUTATE(newnode->lexpr, bexpr->lexpr, Node *);
- MUTATE(newnode->rexpr, bexpr->rexpr, Node *);
- return (Node *) newnode;
- }
- break;
case T_SubLink:
{
/*
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.345 2002/07/18 16:47:24 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.346 2002/07/18 17:14:19 momjian Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
%type <list> extract_list, overlay_list, position_list
%type <list> substr_list, trim_list
-%type <ival> opt_interval, opt_symmetry
+%type <ival> opt_interval
%type <node> overlay_placing, substr_from, substr_for
%type <boolean> opt_instead, opt_cursor
/* ordinary key words in alphabetical order */
%token <keyword> ABORT_TRANS, ABSOLUTE, ACCESS, ACTION, ADD, AFTER,
AGGREGATE, ALL, ALTER, ANALYSE, ANALYZE, AND, ANY, AS, ASC,
- ASSERTION, ASSIGNMENT, ASYMMETRIC, AT, AUTHORIZATION,
+ ASSERTION, ASSIGNMENT, AT, AUTHORIZATION,
BACKWARD, BEFORE, BEGIN_TRANS, BETWEEN, BIGINT, BINARY, BIT, BOTH,
BOOLEAN, BY,
SERIALIZABLE, SESSION, SESSION_USER, SET, SETOF, SHARE,
SHOW, SIMILAR, SIMPLE, SMALLINT, SOME, STABLE, START, STATEMENT,
STATISTICS, STDIN, STDOUT, STORAGE, STRICT, SUBSTRING,
- SYMMETRIC, SYSID,
+ SYSID,
TABLE, TEMP, TEMPLATE, TEMPORARY, THEN, TIME, TIMESTAMP,
TO, TOAST, TRAILING, TRANSACTION, TREAT, TRIGGER, TRIM, TRUE_P,
}
| a_expr IS DISTINCT FROM a_expr %prec DISTINCT
{ $$ = (Node *) makeSimpleA_Expr(DISTINCT, "=", $1, $5); }
- | a_expr BETWEEN opt_symmetry b_expr AND b_expr %prec BETWEEN
+ | a_expr BETWEEN b_expr AND b_expr %prec BETWEEN
{
- BetweenExpr *n = makeNode(BetweenExpr);
- n->expr = $1;
- n->symmetric = $3;
- n->lexpr = $4;
- n->rexpr = $6;
- n->not = false;
- $$ = (Node *)n;
+ $$ = (Node *) makeA_Expr(AND, NIL,
+ (Node *) makeSimpleA_Expr(OP, ">=", $1, $3),
+ (Node *) makeSimpleA_Expr(OP, "<=", $1, $5));
}
- | a_expr NOT BETWEEN opt_symmetry b_expr AND b_expr %prec BETWEEN
+ | a_expr NOT BETWEEN b_expr AND b_expr %prec BETWEEN
{
- BetweenExpr *n = makeNode(BetweenExpr);
- n->expr = $1;
- n->symmetric = $4;
- n->lexpr = $5;
- n->rexpr = $7;
- n->not = true;
- $$ = (Node *)n;
+ $$ = (Node *) makeA_Expr(OR, NIL,
+ (Node *) makeSimpleA_Expr(OP, "<", $1, $4),
+ (Node *) makeSimpleA_Expr(OP, ">", $1, $6));
}
| a_expr IN_P in_expr
{
{ $$ = $1; }
;
-opt_symmetry: SYMMETRIC { $$ = TRUE; }
- | ASYMMETRIC { $$ = FALSE; }
- | /* EMPTY */ { $$ = FALSE; }
- ;
-
/*
* Restricted expressions
*
| ANY
| AS
| ASC
- | ASYMMETRIC
| BOTH
| CASE
| CAST
| SELECT
| SESSION_USER
| SOME
- | SYMMETRIC
| TABLE
| THEN
| TO
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.120 2002/07/18 04:41:45 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.121 2002/07/18 17:14:19 momjian Exp $
*
*-------------------------------------------------------------------------
*/
{"asc", ASC},
{"assertion", ASSERTION},
{"assignment", ASSIGNMENT},
- {"asymmetric", ASYMMETRIC},
{"at", AT},
{"authorization", AUTHORIZATION},
{"backward", BACKWARD},
{"storage", STORAGE},
{"strict", STRICT},
{"substring", SUBSTRING},
- {"symmetric", SYMMETRIC},
{"sysid", SYSID},
{"table", TABLE},
{"temp", TEMP},
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.122 2002/07/18 04:41:45 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.123 2002/07/18 17:14:19 momjian Exp $
*
*-------------------------------------------------------------------------
*/
* here.
*
* NOTE: there are various cases in which this routine will get applied to
- * an already-transformed expression. An examples:
- * - Another way it can happen is that coercion of an operator or
+ * an already-transformed expression. Some examples:
+ * 1. At least one construct (BETWEEN/AND) puts the same nodes
+ * into two branches of the parse tree; hence, some nodes
+ * are transformed twice.
+ * 2. Another way it can happen is that coercion of an operator or
* function argument to the required type (via coerce_type())
* can apply transformExpr to an already-transformed subexpression.
* An example here is "SELECT count(*) + 1.0 FROM table".
result = expr;
break;
}
- case T_BetweenExpr:
- {
- BetweenExpr *b = (BetweenExpr *) expr;
- List *typeIds = NIL;
- HeapTuple tup;
- Form_pg_operator opform;
-
- /* Transform the expressions */
- b->expr = transformExpr(pstate, b->expr);
- b->lexpr = transformExpr(pstate, b->lexpr);
- b->rexpr = transformExpr(pstate, b->rexpr);
-
- /* Find coercion type for all 3 entities */
- typeIds = lappendi(typeIds, exprType(b->expr));
- typeIds = lappendi(typeIds, exprType(b->lexpr));
- typeIds = lappendi(typeIds, exprType(b->rexpr));
- b->typeId = select_common_type(typeIds, "TransformExpr");
-
- /* Additional type information */
- b->typeLen = get_typlen(b->typeId);
- b->typeByVal = get_typbyval(b->typeId);
-
- /* Coerce the three expressions to the type */
- b->expr = coerce_to_common_type(pstate, b->expr,
- b->typeId,
- "TransformExpr");
-
- b->lexpr = coerce_to_common_type(pstate, b->lexpr,
- b->typeId,
- "TransformExpr");
-
- b->rexpr = coerce_to_common_type(pstate, b->rexpr,
- b->typeId,
- "TransformExpr");
-
- /* Build the >= operator */
- tup = oper(makeList1(makeString(">=")),
- b->typeId, b->typeId, false);
- opform = (Form_pg_operator) GETSTRUCT(tup);
-
- /* Triple check our types */
- if (b->typeId != opform->oprright || b->typeId != opform->oprleft)
- elog(ERROR, "transformExpr: Unable to find appropriate"
- " operator for between operation");
-
- b->gthan = makeNode(Expr);
- b->gthan->typeOid = opform->oprresult;
- b->gthan->opType = OP_EXPR;
- b->gthan->oper = (Node *) makeOper(oprid(tup), /* opno */
- oprfuncid(tup), /* opid */
- opform->oprresult, /* opresulttype */
- get_func_retset(opform->oprcode));/* opretset */
- ReleaseSysCache(tup);
-
- /* Build the equation for <= operator */
- tup = oper(makeList1(makeString("<=")),
- b->typeId, b->typeId, false);
- opform = (Form_pg_operator) GETSTRUCT(tup);
-
- /* Triple check the types */
- if (b->typeId != opform->oprright || b->typeId != opform->oprleft)
- elog(ERROR, "transformExpr: Unable to find appropriate"
- " operator for between operation");
-
- b->lthan = makeNode(Expr);
- b->lthan->typeOid = opform->oprresult;
- b->lthan->opType = OP_EXPR;
- b->lthan->oper = (Node *) makeOper(oprid(tup), /* opno */
- oprfuncid(tup), /* opid */
- opform->oprresult, /* opresulttype */
- get_func_retset(opform->oprcode));/* opretset */
- ReleaseSysCache(tup);
-
- result = expr;
- break;
- }
/*
* Quietly accept node types that may be presented when we are
result = (Node *) expr;
break;
}
+
default:
/* should not reach here */
elog(ERROR, "transformExpr: does not know how to transform node %d"
case T_BooleanTest:
type = BOOLOID;
break;
- case T_BetweenExpr:
- type = BOOLOID;
- break;
default:
elog(ERROR, "exprType: Do not know how to get type for %d node",
nodeTag(expr));
* back to source text
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.110 2002/07/18 04:41:45 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.111 2002/07/18 17:14:20 momjian Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
}
}
break;
- case T_BetweenExpr:
- {
- BetweenExpr *btwn = (BetweenExpr *) node;
-
- get_rule_expr(btwn->expr, context);
-
- if (btwn->not)
- appendStringInfo(buf, " NOT");
- appendStringInfo(buf, " BETWEEN");
-
- /*
- * Output both symmetric and asymmetric, even though
- * asymmetric is default
- */
- if (btwn->symmetric)
- appendStringInfo(buf, " SYMMETRIC ");
- else
- appendStringInfo(buf, " ASYMMETRIC ");
-
- get_rule_expr(btwn->lexpr, context);
-
- appendStringInfo(buf, " AND ");
- get_rule_expr(btwn->rexpr, context);
- }
- break;
default:
elog(ERROR, "get_rule_expr: unknown node type %d", nodeTag(node));
break;
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: makefuncs.h,v 1.38 2002/07/18 04:41:45 momjian Exp $
+ * $Id: makefuncs.h,v 1.39 2002/07/18 17:14:20 momjian Exp $
*
*-------------------------------------------------------------------------
*/
extern RangeVar *makeRangeVar(char *schemaname, char *relname);
extern TypeName *makeTypeName(char *typnam);
-extern TypeName *makeQualifiedTypeName(List *lst);
#endif /* MAKEFUNC_H */
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: nodes.h,v 1.111 2002/07/18 04:41:45 momjian Exp $
+ * $Id: nodes.h,v 1.112 2002/07/18 17:14:20 momjian Exp $
*
*-------------------------------------------------------------------------
*/
T_GroupClause,
T_NullTest,
T_BooleanTest,
- T_BetweenExpr,
T_CaseExpr,
T_CaseWhen,
T_FkConstraint,
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: parsenodes.h,v 1.191 2002/07/18 16:47:26 tgl Exp $
+ * $Id: parsenodes.h,v 1.192 2002/07/18 17:14:20 momjian Exp $
*
*-------------------------------------------------------------------------
*/
} A_Const;
/*
- * BetweenExpr - an SQL99 BETWEEN expression
- */
-
-typedef struct BetweenExpr
-{
- NodeTag type;
- Node *expr; /* Expression to check */
- Node *lexpr; /* First bound */
- Node *rexpr; /* Second bound */
- bool not; /* Do we want inverse? */
- bool symmetric; /* True if SYMMETRIC, false if ASYMMETRIC */
- Oid typeId; /* Information about common type */
- int16 typeLen;
- bool typeByVal;
- Expr *gthan;
- Expr *lthan;
-} BetweenExpr;
-
-/*
* TypeCast - a CAST expression
*
* NOTE: for mostly historical reasons, A_Const parsenodes contain
--
SELECT p.name, p.age FROM person* p ORDER BY age using >, name;
---
--- Test between syntax
---
-SELECT 2 BETWEEN 1 AND 3;
-SELECT 2 BETWEEN 3 AND 1;
-SELECT 2 BETWEEN ASYMMETRIC 1 AND 3;
-SELECT 2 BETWEEN ASYMMETRIC 3 AND 1;
-SELECT 2 BETWEEN SYMMETRIC 1 AND 3;
-SELECT 2 BETWEEN SYMMETRIC 3 AND 1;
-SELECT 2 NOT BETWEEN 1 AND 3;
-SELECT 2 NOT BETWEEN 3 AND 1;
-SELECT 2 NOT BETWEEN ASYMMETRIC 1 AND 3;
-SELECT 2 NOT BETWEEN ASYMMETRIC 3 AND 1;
-SELECT 2 NOT BETWEEN SYMMETRIC 1 AND 3;
-SELECT 2 NOT BETWEEN SYMMETRIC 3 AND 1;
-SELECT -4 BETWEEN -1 AND -3;
-SELECT -4 BETWEEN -3 AND -1;
-SELECT -4 BETWEEN ASYMMETRIC -1 AND -3;
-SELECT -4 BETWEEN ASYMMETRIC -3 AND -1;
-SELECT -4 BETWEEN SYMMETRIC -1 AND -3;
-SELECT -4 BETWEEN SYMMETRIC -3 AND -1;
-SELECT -4 NOT BETWEEN -1 AND -3;
-SELECT -4 NOT BETWEEN -3 AND -1;
-SELECT -4 NOT BETWEEN ASYMMETRIC -1 AND -3;
-SELECT -4 NOT BETWEEN ASYMMETRIC -3 AND -1;
-SELECT -4 NOT BETWEEN SYMMETRIC -1 AND -3;
-SELECT -4 NOT BETWEEN SYMMETRIC -3 AND -1;
-
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