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Code Issues

Fix for FBTCS Join 17 testcase

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This commit is contained in:
skidder 2004-04-28 05:18:27 +00:00
parent 7d5f011363
commit 5f909e21b8
1 changed files with 10 additions and 0 deletions
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10
src/jrd/opt.cpp
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@ -5629,6 +5629,12 @@ static jrd_nod* make_inference_node(CompilerScratch* csb, jrd_nod* boolean,
/* Clone the input predicate */
jrd_nod* node = PAR_make_node(tdbb, boolean->nod_count);
node->nod_type = boolean->nod_type;
// We may safely copy invariantness flag because
// (1) we only distribute field equalities
// (2) invariantness of second argument of STARTING WITH or LIKE is solely
// determined by its dependency on any of the fields
// If provisions above change the line below will have to be modified
node->nod_flags = boolean->nod_flags;
/* But substitute new values for some of the predicate arguments */
node->nod_arg[0] = CMP_clone_node(tdbb, csb, arg1);
@ -5636,6 +5642,10 @@ static jrd_nod* make_inference_node(CompilerScratch* csb, jrd_nod* boolean,
/* Arguments after the first two are just cloned (eg: LIKE ESCAPE clause) */
for (USHORT n = 2; n < boolean->nod_count; n++)
node->nod_arg[n] = CMP_clone_node(tdbb, csb, boolean->nod_arg[n]);
// Assign impure area for cached invariant value if needed --
// used to hold pre-compiled patterns for new LIKE and CONTAINING algorithms
if (node->nod_flags & nod_invariant)
node->nod_impure = CMP_impure(csb, sizeof(impure_value));
return node;
}