Changeset: c3e306ad455c for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=c3e306ad455c
Modified Files:
gdk/gdk_bbp.c
Branch: properties
Log Message:
Read and cache min/max values when type and position is known during startup.
diffs (32 lines):
diff --git a/gdk/gdk_bbp.c b/gdk/gdk_bbp.c
--- a/gdk/gdk_bbp.c
+++ b/gdk/gdk_bbp.c
@@ -991,6 +991,28 @@ BBPreadEntries(FILE *fp, unsigned bbpver
BBP_lrefs(bid) = 1; /* any BAT we encounter here is
persistent, so has a logical reference */
BBP_desc(bid) = bn;
BBP_status(bid) = BBPEXISTING; /* do we need other status
bits? */
+ bool loaded = false;
+ PROPrec *p;
+ if (bn->ttype >= 0 && (p = BATgetprop(bn, GDK_MIN_POS)) !=
NULL) {
+ /* for known types cache the value corresponding to the
+ * position */
+ if ((bn = BATdescriptor(bn->batCacheid)) != NULL) {
+ loaded = true;
+ BATiter bi = bat_iterator(bn);
+ BATsetprop(bn, GDK_MIN_VALUE, bn->ttype,
BUNtail(bi, p->v.val.oval));
+ }
+ }
+ if (bn->ttype >= 0 && (p = BATgetprop(bn, GDK_MAX_POS)) !=
NULL) {
+ /* for known types cache the value corresponding to the
+ * position */
+ if (loaded || (bn = BATdescriptor(bn->batCacheid)) !=
NULL) {
+ loaded = true;
+ BATiter bi = bat_iterator(bn);
+ BATsetprop(bn, GDK_MAX_VALUE, bn->ttype,
BUNtail(bi, p->v.val.oval));
+ }
+ }
+ if (loaded)
+ BBPunfix(bn->batCacheid);
}
return GDK_SUCCEED;
}
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