Changeset: f900af1e70a0 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=f900af1e70a0
Added Files:
        sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.sql
        sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.stable.err
        sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.stable.out
Modified Files:
        sql/server/rel_dump.c
        sql/server/rel_optimizer.c
        sql/server/rel_psm.c
Branch: Oct2014
Log Message:

handle psm expressions in exp_print and exp_case_fixup (solving the
div_by_zero bug 3555)


diffs (238 lines):

diff --git a/sql/server/rel_dump.c b/sql/server/rel_dump.c
--- a/sql/server/rel_dump.c
+++ b/sql/server/rel_dump.c
@@ -26,6 +26,7 @@
 #include "rel_prop.h"
 #include "rel_select.h"
 #include "rel_semantic.h"
+#include "rel_psm.h"
 
 static void
 print_indent(mvc *sql, stream *fout, int depth)
@@ -80,6 +81,28 @@ exp_print(mvc *sql, stream *fout, sql_ex
        if (!e)
                return;
        switch(e->type) {
+       case e_psm: {
+               if (e->flag & PSM_SET) {
+                       /* todo */
+               } else if (e->flag & PSM_VAR) {
+                       /* todo */
+               } else if (e->flag & PSM_RETURN) {
+                       mnstr_printf(fout, "return ");
+                       exp_print(sql, fout, e->l, depth, 0, 0);
+               } else if (e->flag & PSM_WHILE) {
+                       mnstr_printf(fout, "while ");
+                       exp_print(sql, fout, e->l, depth, 0, 0);
+                       exps_print(sql, fout, e->r, depth, alias, 0);
+               } else if (e->flag & PSM_IF) {
+                       mnstr_printf(fout, "if ");
+                       exp_print(sql, fout, e->l, depth, 0, 0);
+                       exps_print(sql, fout, e->r, depth, alias, 0);
+                       if (e->f)
+                               exps_print(sql, fout, e->f, depth, alias, 0);
+               } else if (e->flag & PSM_REL) {
+               }
+               break;
+       }
        case e_convert: {
                char *to_type = sql_subtype_string(&e->tpe);
                mnstr_printf(fout, "%s[", to_type);
@@ -340,7 +363,7 @@ rel_print_(mvc *sql, stream  *fout, sql_
                        rel_print_(sql, fout, rel->l, depth+1, refs);
                if (rel->r)
                        rel_print_(sql, fout, rel->r, depth+1, refs);
-               if (rel->exps) 
+               if (rel->exps && rel->flag == DDL_PSM) 
                        exps_print(sql, fout, rel->exps, depth, 1, 0);
                break;
        case op_join: 
diff --git a/sql/server/rel_optimizer.c b/sql/server/rel_optimizer.c
--- a/sql/server/rel_optimizer.c
+++ b/sql/server/rel_optimizer.c
@@ -27,6 +27,7 @@
 #include "rel_select.h"
 #include "rel_updates.h"
 #include "rel_planner.h"
+#include "rel_psm.h"
 #include "sql_env.h"
 
 #define new_func_list(sa) sa_list(sa)
@@ -2324,6 +2325,25 @@ static sql_exp *
 exp_case_fixup( mvc *sql, sql_exp *e )
 {
        /* only functions need fix up */
+       if (e->type == e_psm) {
+               if (e->flag & PSM_SET) {
+                       /* todo */
+               } else if (e->flag & PSM_VAR) {
+                       /* todo */
+               } else if (e->flag & PSM_RETURN) {
+                       e->l = exp_case_fixup(sql, e->l);
+               } else if (e->flag & PSM_WHILE) {
+                       e->l = exp_case_fixup(sql, e->l);
+                       e->r = exps_case_fixup(sql, e->r, NULL, 0);
+               } else if (e->flag & PSM_IF) {
+                       e->l = exp_case_fixup(sql, e->l);
+                       e->r = exps_case_fixup(sql, e->r, NULL, 0);
+                       if (e->f)
+                               e->f = exps_case_fixup(sql, e->f, NULL, 0);
+               } else if (e->flag & PSM_REL) {
+               }
+               return e;
+       }
        if (e->type == e_func && e->l && !is_rank_op(e) ) {
                list *l = new_exp_list(sql->sa), *args = e->l;
                node *n;
@@ -2395,7 +2415,7 @@ rel_case_fixup(int *changes, mvc *sql, s
 {
        
        (void)changes; /* only go through it once, ie don't mark for changes */
-       if (is_project(rel->op) && rel->exps) {
+       if ((is_project(rel->op) || (rel->op == op_ddl && rel->flag == 
DDL_PSM)) && rel->exps) {
                list *exps = rel->exps;
                node *n;
                int needed = 0;
@@ -2404,7 +2424,7 @@ rel_case_fixup(int *changes, mvc *sql, s
                        sql_exp *e = n->data;
 
                        if (e->type == e_func || e->type == e_convert ||
-                           e->type == e_aggr) 
+                           e->type == e_aggr || e->type == e_psm) 
                                needed = 1;
                }
                if (!needed)
@@ -7038,7 +7058,7 @@ static sql_rel *
 #endif
 
        /* simple merging of projects */
-       if (gp.cnt[op_project]) {
+       if (gp.cnt[op_project] || gp.cnt[op_ddl]) {
                rel = rewrite(sql, rel, &rel_merge_projects, &changes);
                if (level <= 0) {
                        rel = rewrite(sql, rel, &rel_case_fixup, &changes);
diff --git a/sql/server/rel_psm.c b/sql/server/rel_psm.c
--- a/sql/server/rel_psm.c
+++ b/sql/server/rel_psm.c
@@ -770,15 +770,15 @@ rel_create_func(mvc *sql, dlist *qname, 
                        if (body && lang > FUNC_LANG_SQL) {
                                char *lang_body = body->h->data.sval;
                                char *mod =     (lang == FUNC_LANG_R)?"rapi":
-                                                                               
        (lang == FUNC_LANG_C)?"capi":
-                                                                               
        (lang == FUNC_LANG_J)?"japi":"unknown";
+                                               (lang == FUNC_LANG_C)?"capi":
+                                               (lang == 
FUNC_LANG_J)?"japi":"unknown";
                                sql->params = NULL;
-                                       if (create) {
-                                               f = mvc_create_func(sql, 
sql->sa, s, fname, l, restype, type, lang,  mod, fname, lang_body, FALSE, 
vararg);
+                               if (create) {
+                                       f = mvc_create_func(sql, sql->sa, s, 
fname, l, restype, type, lang,  mod, fname, lang_body, FALSE, vararg);
                                } else if (!sf) {
                                        return sql_error(sql, 01, "CREATE %s%s: 
R function %s.%s not bound", KF, F, s->base.name, fname );
                                } else {
-                                               sql_func *f = sf->func;
+                                       sql_func *f = sf->func;
                                        f->mod = _STRDUP("rapi");
                                        f->imp = _STRDUP("eval");
                                        if (res && restype)
diff --git a/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.sql 
b/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.sql
new file mode 100644
--- /dev/null
+++ b/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.sql
@@ -0,0 +1,6 @@
+CREATE FUNCTION my_avg(total INT, cnt INT) RETURNS INT
+BEGIN
+    RETURN CASE WHEN cnt <> 0 THEN total / cnt ELSE -1 END;
+END;
+SELECT my_avg(0, 0);
+DROP FUNCTION my_avg;
diff --git 
a/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.stable.err 
b/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.stable.err
new file mode 100644
--- /dev/null
+++ b/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.stable.err
@@ -0,0 +1,37 @@
+stderr of test 'div_by_zero_in_return.Bug-3555` in directory 
'sql/test/BugTracker-2014` itself:
+
+
+# 21:13:46 >  
+# 21:13:46 >  "mserver5" "--debug=10" "--set" "gdk_nr_threads=0" "--set" 
"mapi_open=true" "--set" "mapi_port=38269" "--set" 
"mapi_usock=/var/tmp/mtest-27060/.s.monetdb.38269" "--set" "monet_prompt=" 
"--forcemito" "--set" "mal_listing=2" 
"--dbpath=/home/niels/scratch/rc-monetdb/Linux-x86_64/var/MonetDB/mTests_sql_test_BugTracker-2014"
 "--set" "mal_listing=0" "--set" "embedded_r=yes"
+# 21:13:46 >  
+
+# builtin opt  gdk_dbpath = 
/home/niels/scratch/rc-monetdb/Linux-x86_64/var/monetdb5/dbfarm/demo
+# builtin opt  gdk_debug = 0
+# builtin opt  gdk_vmtrim = no
+# builtin opt  monet_prompt = >
+# builtin opt  monet_daemon = no
+# builtin opt  mapi_port = 50000
+# builtin opt  mapi_open = false
+# builtin opt  mapi_autosense = false
+# builtin opt  sql_optimizer = default_pipe
+# builtin opt  sql_debug = 0
+# cmdline opt  gdk_nr_threads = 0
+# cmdline opt  mapi_open = true
+# cmdline opt  mapi_port = 38269
+# cmdline opt  mapi_usock = /var/tmp/mtest-27060/.s.monetdb.38269
+# cmdline opt  monet_prompt = 
+# cmdline opt  mal_listing = 2
+# cmdline opt  gdk_dbpath = 
/home/niels/scratch/rc-monetdb/Linux-x86_64/var/MonetDB/mTests_sql_test_BugTracker-2014
+# cmdline opt  mal_listing = 0
+# cmdline opt  embedded_r = yes
+# cmdline opt  gdk_debug = 536870922
+
+# 21:13:47 >  
+# 21:13:47 >  "mclient" "-lsql" "-ftest" "-Eutf-8" "-i" "-e" 
"--host=/var/tmp/mtest-27060" "--port=38269"
+# 21:13:47 >  
+
+
+# 21:13:47 >  
+# 21:13:47 >  "Done."
+# 21:13:47 >  
+
diff --git 
a/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.stable.out 
b/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.stable.out
new file mode 100644
--- /dev/null
+++ b/sql/test/BugTracker-2014/Tests/div_by_zero_in_return.Bug-3555.stable.out
@@ -0,0 +1,43 @@
+stdout of test 'div_by_zero_in_return.Bug-3555` in directory 
'sql/test/BugTracker-2014` itself:
+
+
+# 21:13:46 >  
+# 21:13:46 >  "mserver5" "--debug=10" "--set" "gdk_nr_threads=0" "--set" 
"mapi_open=true" "--set" "mapi_port=38269" "--set" 
"mapi_usock=/var/tmp/mtest-27060/.s.monetdb.38269" "--set" "monet_prompt=" 
"--forcemito" "--set" "mal_listing=2" 
"--dbpath=/home/niels/scratch/rc-monetdb/Linux-x86_64/var/MonetDB/mTests_sql_test_BugTracker-2014"
 "--set" "mal_listing=0" "--set" "embedded_r=yes"
+# 21:13:46 >  
+
+# MonetDB 5 server v11.19.0
+# This is an unreleased version
+# Serving database 'mTests_sql_test_BugTracker-2014', using 4 threads
+# Compiled for x86_64-unknown-linux-gnu/64bit with 64bit OIDs dynamically 
linked
+# Found 7.334 GiB available main-memory.
+# Copyright (c) 1993-July 2008 CWI.
+# Copyright (c) August 2008-2014 MonetDB B.V., all rights reserved
+# Visit http://www.monetdb.org/ for further information
+# Listening for connection requests on mapi:monetdb://localhost.nes.nl:38269/
+# Listening for UNIX domain connection requests on 
mapi:monetdb:///var/tmp/mtest-27060/.s.monetdb.38269
+# MonetDB/GIS module loaded
+# MonetDB/SQL module loaded
+# MonetDB/R   module loaded
+
+Ready.
+
+# 21:13:47 >  
+# 21:13:47 >  "mclient" "-lsql" "-ftest" "-Eutf-8" "-i" "-e" 
"--host=/var/tmp/mtest-27060" "--port=38269"
+# 21:13:47 >  
+
+#CREATE FUNCTION my_avg(total INT, cnt INT) RETURNS INT
+#BEGIN
+#    RETURN CASE WHEN cnt <> 0 THEN total / cnt ELSE -1 END;
+#END;
+#SELECT my_avg(0, 0);
+% .L # table_name
+% my_avg_single_value # name
+% int # type
+% 2 # length
+[ -1   ]
+#DROP FUNCTION my_avg;
+
+# 21:13:47 >  
+# 21:13:47 >  "Done."
+# 21:13:47 >  
+
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