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@@ -80,6 +80,8 @@ LSUP_graph_bool_op_txn (
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return LSUP_VALUE_ERR;
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}
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+ /* BEGIN union block. */
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+
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if (op == LSUP_BOOL_UNION) {
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rc = LSUP_graph_copy_contents (gr1, res);
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PCHECK (rc, fail);
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@@ -89,6 +91,10 @@ LSUP_graph_bool_op_txn (
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return LSUP_OK;
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}
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+ /* END union block. */
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+
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+ /* BEGIN subtraction, intersection, XOR block. */
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+
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LSUP_Buffer
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*res_sc = LSUP_term_serialize (res->uri),
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*gr1_sc = LSUP_term_serialize (gr1->uri),
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@@ -107,7 +113,7 @@ LSUP_graph_bool_op_txn (
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lu1_it = gr1->store->sif->lookup_fn (
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gr1->store->data, sspo->s, sspo->p, sspo->o, gr1_sc,
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txn, &ct);
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- if (ct > 0)
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+ if (ct == 0)
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res->store->sif->add_iter_fn (add_it, sspo);
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gr1->store->sif->lu_free_fn (lu1_it);
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}
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@@ -129,10 +135,13 @@ LSUP_graph_bool_op_txn (
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gr1->store->sif->lu_free_fn (lu1_it);
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res->store->sif->add_done_fn (add_it);
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+ LSUP_btriple_free_shallow (sspo);
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LSUP_buffer_free (res_sc);
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LSUP_buffer_free (gr1_sc);
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LSUP_buffer_free (gr2_sc);
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+ /* END subtraction, intersection, XOR block. */
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+
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return rc;
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fail:
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