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Code Issues

bugfix: a simple LEFT JOIN on a VIEW with only a ON clause didn't use an index even if it was possible.

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SF BUG # [ 508594 ]
This commit is contained in:
arnobrinkman 2003-02-01 00:08:18 +00:00
parent 22b9410737
commit 52a7ba0d51
1 changed files with 5 additions and 2 deletions
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7
src/jrd/opt.cpp
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@ -527,10 +527,13 @@ RSB OPT_compile(TDBB tdbb,
/* if we have seen any booleans or sort fields, we may be able to
use an index to optimize them; retrieve the current format of
all indices at this time so we can determine if it's possible */
all indices at this time so we can determine if it's possible
AB: if a parent_stack was available and conjunct_count was 0
then no indices where retrieved. Added also OR check on
parent_stack below. SF BUG # [ 508594 ] */
csb->csb_rpt[stream].csb_idx_allocation = 0;
if (conjunct_count || sort || project || aggregate) {
if (conjunct_count || sort || project || aggregate || parent_stack) {
if ((relation = (JRD_REL) node->nod_arg[e_rel_relation])
&& !relation->rel_file) {
csb->csb_rpt[stream].csb_indices =