Changeset: 6984e86132a3 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=6984e86132a3
Modified Files:
sql/backends/monet5/rel_weld.c
Branch: rel-weld
Log Message:
weld impl for like as a project op
diffs (29 lines):
diff --git a/sql/backends/monet5/rel_weld.c b/sql/backends/monet5/rel_weld.c
--- a/sql/backends/monet5/rel_weld.c
+++ b/sql/backends/monet5/rel_weld.c
@@ -423,6 +423,25 @@ exp_to_weld(backend *be, weld_state *wst
wprintf(wstate, "i8(");
exp_to_weld(be, wstate, e);
wprintf(wstate, " == %snil)", type);
+ } else if (strcmp(weld_func, "like") == 0) {
+ /* Same as `like` from cmp but not quite ... */
+ int state_ptr = wstate->next_var++;
+ sprintf(wstate->global_init +
strlen(wstate->global_init),
+ "let v%d =
cudf[like_pattern_init, i64](", state_ptr);
+ /* Process the pattern and the escape */
+ node *en = ((list*)exp->l)->h;
+ unsigned long old_len = wstate->program_len;
+ exp_to_weld(be, wstate, en->next->data);
+ /* Add the pattern and the escape to the init
udf */
+ sprintf(wstate->global_init +
strlen(wstate->global_init), "%s, "");",
+ wstate->program + old_len);
+ sprintf(wstate->global_cleanup +
strlen(wstate->global_cleanup),
+ "let v%d =
cudf[like_pattern_cleanup, i64](v%d);", state_ptr, state_ptr);
+ wstate->program_len = old_len;
+
+ wprintf(wstate, "i8(cudf[%s, bool](v%d,",
weld_func, state_ptr);
+ exp_to_weld(be, wstate, en->data);
+ wprintf(wstate, "))");
} else {
wprintf(wstate, "%s(", weld_func);
exps_to_weld(be, wstate, exp->l, ", ");
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