diff options
Diffstat (limited to 'src/backend/utils/adt/ruleutils.c')
| -rw-r--r-- | src/backend/utils/adt/ruleutils.c | 76 |
1 files changed, 55 insertions, 21 deletions
diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c index 5635b90a9fb..ae1a8c1fb18 100644 --- a/src/backend/utils/adt/ruleutils.c +++ b/src/backend/utils/adt/ruleutils.c @@ -3,7 +3,7 @@ * back to source text * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.77 2001/04/18 17:04:24 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.78 2001/06/19 22:39:12 tgl Exp $ * * This software is copyrighted by Jan Wieck - Hamburg. * @@ -52,7 +52,6 @@ #include "parser/parse_expr.h" #include "parser/parsetree.h" #include "rewrite/rewriteManip.h" -#include "utils/fmgroids.h" #include "utils/lsyscache.h" @@ -1948,6 +1947,60 @@ get_rule_expr(Node *node, deparse_context *context) } break; + case T_NullTest: + { + NullTest *ntest = (NullTest *) node; + + appendStringInfo(buf, "(("); + get_rule_expr(ntest->arg, context); + switch (ntest->nulltesttype) + { + case IS_NULL: + appendStringInfo(buf, ") IS NULL)"); + break; + case IS_NOT_NULL: + appendStringInfo(buf, ") IS NOT NULL)"); + break; + default: + elog(ERROR, "get_rule_expr: unexpected nulltesttype %d", + (int) ntest->nulltesttype); + } + } + break; + + case T_BooleanTest: + { + BooleanTest *btest = (BooleanTest *) node; + + appendStringInfo(buf, "(("); + get_rule_expr(btest->arg, context); + switch (btest->booltesttype) + { + case IS_TRUE: + appendStringInfo(buf, ") IS TRUE)"); + break; + case IS_NOT_TRUE: + appendStringInfo(buf, ") IS NOT TRUE)"); + break; + case IS_FALSE: + appendStringInfo(buf, ") IS FALSE)"); + break; + case IS_NOT_FALSE: + appendStringInfo(buf, ") IS NOT FALSE)"); + break; + case IS_UNKNOWN: + appendStringInfo(buf, ") IS UNKNOWN)"); + break; + case IS_NOT_UNKNOWN: + appendStringInfo(buf, ") IS NOT UNKNOWN)"); + break; + default: + elog(ERROR, "get_rule_expr: unexpected booltesttype %d", + (int) btest->booltesttype); + } + } + break; + case T_SubLink: get_sublink_expr(node, context); break; @@ -1979,25 +2032,6 @@ get_func_expr(Expr *expr, deparse_context *context) char *sep; /* - * nullvalue() and nonnullvalue() should get turned into special - * syntax - */ - if (funcoid == F_NULLVALUE) - { - appendStringInfoChar(buf, '('); - get_rule_expr((Node *) lfirst(expr->args), context); - appendStringInfo(buf, " ISNULL)"); - return; - } - if (funcoid == F_NONNULLVALUE) - { - appendStringInfoChar(buf, '('); - get_rule_expr((Node *) lfirst(expr->args), context); - appendStringInfo(buf, " NOTNULL)"); - return; - } - - /* * Get the functions pg_proc tuple */ proctup = SearchSysCache(PROCOID, |