Changeset: ffabd521cfbf for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=ffabd521cfbf
Modified Files:
sql/backends/monet5/sql.mx
Branch: Apr2011
Log Message:
Declare sql.delete as an "unsafe" function.
This fixes bug 2820.
The problem was that sql.delete was executed in parallel with a call
to algebra.kdifference on the same table. While the kdiff was
executing, delete deleted the hash table that kdiff was using, causing
the latter to crash.
diffs (12 lines):
diff --git a/sql/backends/monet5/sql.mx b/sql/backends/monet5/sql.mx
--- a/sql/backends/monet5/sql.mx
+++ b/sql/backends/monet5/sql.mx
@@ -221,7 +221,7 @@
address mvc_clear_table_wrap
comment "Clear table";
-pattern delete(mvc:ptr, sname:str, tname:str, b:any):ptr
+pattern delete{unsafe}(mvc:ptr, sname:str, tname:str, b:any):ptr
address mvc_delete_wrap
comment "delete from table";
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